Trips

Mode: RFC‑S

Trips range 0 - 255

Trip 0 (10.020) to Trip 9 (10.029) store the most recent 10 trips that have occurred where Trip 0 (10.020) is the most recent and Trip 9 (10.029) is the oldest. When a new trip occurs it is written to Trip 0 (10.020) and all the other trips move down the log, with oldest being lost. The date and time when each trip occurs are also stored in the date and time log, i.e. Trip 0 Date (10.041) to Trip 9 Time (10.060). The date and time are taken from Date (06.016) and Time (06.017). Some trips have sub-trip numbers which give more detail about the reason for the trip. If a trip has a sub-trip number its value is stored in the sub-trip log, i.e. Trip 0 Sub-trip Number (10.070) to Trip 9 Sub-trip Number (10.079). If the trip does not have a sub-trip number then zero is stored in the sub-trip log.

Trip categories and priorities
Trips are grouped into the categories given in the table below. A trip can only occur when the drive is not tripped, or if it is already tripped and the new trip has a higher priority than the active trip (i.e. lower priority number). Unless otherwise stated a trip cannot be reset until 1.0s after it has been initiated.

Internal faults
Trips {HF01} to {HF28} are internal faults that do not have trip numbers. If one of these trips occurs, the main drive processor has detected an irrecoverable error. All drive functions are stopped and the trip message will be displayed on the drive keypad. The error can only be reset by powering the drive down and up again. The table below gives the reasons for internal faults and their corresponding trip.

When the drive is subsequently powered up a Stored HF trip is initiated where the sub-trip number is the number of the HF trip that last occurred. This trip will occur at every power-up until it is reset. The trip can only be reset by first entering 1299 into Parameter mm.000 (mm.000).

Similar trips that can be initiated by the control system or the power system
Trips shown in the table below can be generated either from the drive control system or from the power system. The sub-trip number which is in the form xxyzz is used to identify the source of the trip. The digits xx are 00 for a trip generated by the control system or the number of a power module if generated by the power system. If the drive is not a multi-power module drive then xx will always have a value of 1 indicating the trip is related to the power system. The y digit is used to identify the location of a trip which is generated by a rectifier module connected to a power module. Where the y digit is relevant it will have a value of 1 or more, otherwise it will be 0. The zz digits give the reason for the trip and are defined in each trip description.

Braking IGBT
The list below gives conditions that will disable the braking IGBT:

1. Braking IGBT Upper Threshold (06.074) = 0, or Low Voltage Braking IGBT Threshold Select (06.076) = 1 and Low Voltage Braking IGBT Threshold (06.075) = 0.
2. The drive is in the under-voltage state.
3. A priority 1, 2 or 3 trip is active (see Trip 0 (10.020)).
4. One of the following trips is active or would be active if another trip is not already active: OI Brake, PSU, Th Brake Res or OHt Inverter. 
5.  Percentage Of Drive Thermal Trip Level (07.036) = 100%. This is an indication that some part of the drive is too hot and is used to indicate if an internally fitted braking resistor is too hot.
6.  Brake R Too Hot is active or the system has been set up to disable the braking IGBT based on the braking resistor temperature and the resistor is too hot (i.e. bit 2 of Action On Trip Detection (10.037) is set).

Note that the braking IGBT over-current trip cannot be reset until 10s after it is initiated. This period consists of a 9s period after the trip where the braking IGBT cannot be switched on again and the OI Brake trip is held active and cannot be reset. This 9s period is followed by the normal 1s delay, that is present for other trips, before the trip can be reset. During this 1s period it is possible for the braking IGBT to switch on again. If the conditions are still present that caused the trip then the trip will be initiated again with a further 9s hold-off period etc.

Summary (numerical order)

Descriptions (alphabetic order)

Normally active input rectifier trips give similar trips to the output converter that controls the motor with a suitable sub-trip code to indicate that the trip has been initiated by the rectifier. However it is possible for a fault in the active input rectifier control board to cause other trips that are not intercepted by the main control board. These are indicated by this trip with a sub-trip code that indicates the reason for the trip. The sub-trip code value corresponds to the trips defined by Trip 0 (10.020).

Indicates that a current loss was detected in current mode on Analog Input 1 (Terminal 5, 6). In 4-20mA and 20-4mA modes. loss of input is detected if the current falls below 3mA. See Analog Input 1 Mode (07.007) for further details.

Recommended actions:

• Check control wiring is correct.
• Check control wiring is undamaged.
• Check Analog Input 1 Mode (07.007).
• Check that the current signal is present and greater than 3mA.

Indicates that a current loss was detected in current mode on Analog Input 2 (Terminal 7). In 4-20mA and 20-4mA modes. loss of input is detected if the current falls below 3mA. See Analog Input 2 Mode (07.011) for further details.

Recommended actions:

• Check control wiring is correct.
• Check control wiring is undamaged.
• Check Analog Input 2 Mode (07.011).
• Check that the current signal is present and greater than 3mA.

The zero offset calibration of one or both of the analogue outputs has failed. This indicates that the drive hardware has failed, or a voltage has been applied to the output via a low impedance possibly due to a wiring error.

Recommended actions:

• Check the wiring associated with analog outputs.
• Remove all the wiring that is connected to analog outputs and perform a recalibration by power cycling the drive.
• If trip persists, replace the drive.

The customisation table for an application menu has been changed. The sub-trip indicates which menu has changed:

If more than one menu has changed the lowest menu has priority. Drive user parameters must be saved to prevent this trip on the next power-up.

Recommended actions:

• Reset the trip and perform a parameter save to accept the new settings.

This trip is called by the Pump software in the event of Soft Starter Assist 1 starting too many times in an hour as defined by Assist Starts Per Hour (29.120). This trip is only active when Assist Over-cycle Mode (29.121) = Trip and the Pump Control Mode (29.011) = Cascade.

This trip is called by the Pump software in the event of Soft Starter Assist 2 starting too many times in an hour as defined by Assist Starts Per Hour (29.120). This trip is only active when Assist Over-cycle Mode (29.121) = Trip and the Pump Control Mode (29.011) = Cascade.

This trip is called by the Pump software in the event of Soft Starter Assist 3 starting too many times in an hour as defined by Assist Starts Per Hour (29.120). This trip is only active when Assist Over-cycle Mode (29.121) = Trip and the Pump Control Mode (29.011) = Cascade.

This trip is called by the Pump software in the event of Soft Starter Assist 4 starting too many times in an hour as defined by Assist Starts Per Hour (29.120). This trip is only active when Assist Over-cycle Mode (29.121) = Trip and the Pump Control Mode (29.011) = Cascade.

The drive has tripped during an auto-tune. The cause of the trip can be identified from the sub-trip number.

The drive has tripped during a rotating auto-tune. The cause of the trip can be identified from the associated sub-trip number.

The drive has tripped during a rotating auto-tune or mechanical load measurement. The cause of the trip can be identified from the associated sub-trip number.

A position feedback device with commutation signals is being used (i.e. AB Servo, FD Servo, FR Servo, SC Servo or Commutation Only encoder) and the U commutation signal did not change during a rotating auto-tune.

Recommended actions:

• Check feedback device U commutation signal wiring is correct (Encoder terminals 7 and 8).

A position feedback device with commutation signals is being used (i.e. AB Servo, FD Servo, FR Servo, SC Servo or Commutation Only encoder) and the V commutation signal did not change during a rotating auto-tune.

Recommended actions:

• Check feedback device V commutation signal wiring is correct (Encoder terminals 9 and 10).

A position feedback device with commutation signals is being used (i.e. AB Servo, FD Servo, FR Servo, SC Servo or Commutation Only encoder) and the W commutation signal did not change during a rotating auto-tune.

Recommended actions:

• Check feedback device W commutation signal wiring is correct (Encoder terminals 11 and 12).

An Autotune 7 trip is initiated during a rotating auto-tune, if the number of motor poles or the position feedback resolution have been set up incorrectly where position feedback is being used. This trip will not occur if  Number Of Motor Poles (05.011) = 6 (i.e. 12 poles).

Recommended actions:

• Check the lines per revolution for the feedback device.
• Check the number of poles in Number Of Motor Poles (05.011).

The drive was prevented from completing an auto-tune, because either the Final drive enable or the Final drive run were removed.

Recommended actions:

• Check the drive enable signal (Terminal 31) was active during the auto-tune.
• Check the run command was active in Digital Input 05 State (08.005) during the auto-tune.

This trip is called by the Pump software in the event of the Background task taking longer than 15s to execute.

This trip indicates that braking resistor overload has timed out. The value in Braking Resistor Thermal Accumulator (10.039) is calculated using Braking Resistor Rated Power (10.030), Braking Resistor Thermal Time Constant (10.031) and Braking Resistor Resistance (10.061). This trip is initiated when Braking Resistor Thermal Accumulator (10.039) reaches 100%.

Recommended actions:

• Ensure the values entered in Braking Resistor Rated Power (10.030), Braking Resistor Thermal Time Constant (10.031) and Braking Resistor Resistance (10.061) are correct.
• If an external thermal protection device is being used and the braking resistor software overload protection is not required, set Braking Resistor Rated Power (10.030), Braking Resistor Thermal Time Constant (10.031) and Braking Resistor Resistance (10.061) to 0 to disable the trip.

Not applicable

The NV media card is already being accessed via comms, or by an option module, or a file cannot be opened on the drive (i.e. /par/diff file) because the file is already opened via comms.

Recommended actions:

• Attempt the card action again after any comms or option module access to the card has finished.

An attempt is being made to write to a file that already exists.

Recommended actions:

• Attempt to write to a different file on the card.
• Erase the file on the card using parameter mm.000 = 7yyy and a drive reset, and then attempt writing to the file again.
• If writing a parameter file to the card, overwrite the existing file on the card using parameter mm.000 = 3yyy and a drive reset.

A parameter difference file is being written to the drive, but the value of Drive Derivative (11.028) in the file header is different to the value in the drive. Parameters will be transfered to the target drive but some parameters in the destination drive may have different defaults or ranges, and some parameter may not exist.

Recommended actions:

• Ensure that the target drive is of the correct model and type.
• Ensure that the correct card file has been read from the card.

Failure to be able to access the card either because there is no card inserted in the drive, or because of a communication failure with the card or because the file system on the card is corrupted.

Recommended actions:

• Ensure the card is fitted correctly.
• Replace the card.

The drive mode, required defaults or product type in a parameter difference file are not compatible with the drive.

Recommended actions:

• Ensure that the target drive is of the correct model and type.
• Ensure that the correct card file has been read from the card.

The information in the card header (or File /000 in the MCDF folder on an SD card) is out of range. This error can also occur when the file is from a SMART card if the internal file system header information is incorrect (i.e. file type).

Recommended actions:

• Erase/format the card using parameter mm.000 = 9999 and a drive reason. Beware that this will erase all drive related data from the card.

An attempt has been made to write more data, but the card is full.

Recommended actions:

• Erase unwanted files from the card using parameter mm.000 = 7yyy and a drive reset.
• Erase the whole card using parameter mm.000 = 9999 and a drive reset.
• Use a new blank card.

An attempt has been made to read a file that is not present on the card.

Recommended actions:

• Ensure that the correct file on the card is being read.

A parameter file has been transferred from a NV media card to the drive, but at least one of the option modules are different between source and target drives. This trip does not stop the data transfer but is a warning that the data for the option modules that are different will be set to default values and not the values from the card.

Recommended actions:

• Ensure that the correct option modules are fitted to the target drive.
• Ensure that the correct card file has been read from the card.

The NV media card is from another product and is not compatible.

A parameter difference file is being written to the drive, but the value of Drive Rated Voltage (11.033) in the file header is different to the value in the drive. Parameters other than those that a rating dependent (i.e. have the RA attribute) will be transferred to the drive although their values maybe limited to be within the range supported by the target drive. Rating dependent parameters will be set to their default value.

Recommended actions:

• Ensure that the target drive is of the correct voltage rating.
• Ensure that the correct card file has been read from the card.

An attempt is being made to write to a read-only card or file.

Recommended actions:

• Ensure that the read-only flag on the card is not set by using parameter mm.000 = 9777 and resetting the drive.

A failure has occurred in the communications between the drive and an option module when reading or writing data. The sub-trip indicates the option slot.

Recommended actions:

• Attempt the card action again.
• Ensure the option module has the latest firmware version.
• Consider replacing the option module.

An attempt has been made to transfer an onboard user program from the drive to the card but this is not possible due to one of the following reasons.

• The onboard user program is write-only (user program intellectual property protection has been enabled) which prevents the user program from being read from the drive.
• There is no user program present in the drive.

This trip is called by the Pump software in the event of the pump cleaning cycle running too many times as defined by Clean Per Hour Limit (29.100). This trip is only active if Clean Per Hour Limit Mode (29.101) = Trip.

If an attempt is made to use the cloning system to back-up the drive and option modules (parameter mm.000 values from 40001 to 40999) or restore the drive and option modules (parameter mm.000 values from 60001 to 60999) and the action fails then a "Cloning" trip is initiated. The sub-trip value indicates the reason for the trip.

The Number Of Power Modules Detected (11.071) is different from the number expected. The sub-trip value indicates the number of power modules expected.

Recommended actions:

• Ensure that all the power modules are correctly connected and powered up.
• Ensure that the value in Number Of Power Modules Detected (11.071) is set to the number of power modules connected.
• Set Number Of Power Modules Test (11.035) to 0 to disable the trip if not required.

This trip is also initiated if the number of external rectifiers connected to each power module is less than the number defined by Number Of Rectifiers Expected (11.096). If this is the reason for the trip the sub-trip is 10x where x is the number of external rectifiers that should be connected.

Recommended actions:

• Ensure that all the external rectifiers are connected correctly.
• Ensure that the value in Number Of Rectifiers Expected (11.096) is correct.

This trip is initiated by setting bit 12 on the control word in Control Word (06.042) when the control word is enabled (Control Word Enable (06.043) = On).

Recommended actions:

• Check the value of Control Word (06.042).
• Disable the control word in Control Word Enable (06.043).

This trip is called by the Pump software in the event of Pump Control Word 1 (29.151) watchdog bit15 not being toggled for Pump Control Word Watchdog Time (29.150) seconds. This protects the system in the event that a HMI or PLC that is controlling the system becomes disconnected. This is only used when Pump Control Mode (29.011) = Multi-leader.

The current feedback offset is too large to be trimmed correctly. The current feedback offset is always measured at power up before the drive is enabled. In motor control modes the current feedback offset is also measured whenever the drive is not active such that no current should be flowing in the output. In regen mode the current feedback offset is measured when the drive comes out of the under voltage state.

The sub-trip relates to the output phase for which the offset error has been detected.

Recommended actions:

• Ensure that there is no possibility of current flowing in the output phase of the drive when the drive is not enabled.
• If frame size 6 or larger is being used and a 24V backup supply is connected to terminals 1/2 of the control module, then ensure that a 24V supply is also connected to terminals 51/52 on the power stage.
• Hardware fault - contact the supplier of the drive.

A user action or a file system write is active that is changing the drive parameters and the drive has become active, i.e. Drive Active (10.002) = 1. The user actions that change drive parameters are loading defaults, changing drive mode, or transferring data from an NV memory card or a position feedback device to the drive. The file system actions that will cause this trip to be initiated if the drive is enabled during the transfer are writing a parameter or macro file to the drive, or transferring a derivative or user program to the drive. It should be noted that none of these actions can be started if the drive is active, and so the trip only occurs if the action is started and then the drive is enabled.

Recommended actions:

• Ensure the drive is not enabled when one of the following is being carried out:
• Loading defaults
• Changing drive mode
• Transferring data from a NV media card or position feedback device
• Transferring user programs

There is a problem with the identifier associated with derivative image which customises the drive. The reason for the trip is given by the sub-trip as follows.

An error has been detected in the derivative product image. The sub-trip indicated the reason for the trip.

Recommended actions:

• Contact the supplier of the drive.

This trip indicated that destination output parameters of two or more logic functions (Menus 05, 07, 08, 09, 12 or 14) within the drive are writing to the same parameter.

Recommended actions:

• Set Pr mm.000 to "Destinations" or 12001 and check all visible parameters in all menus for parameter write conflicts.

This trip indicates that the control PCB has not recognized the drive size of the power circuit to which it is connected.

Recommended actions:

• Ensure the drive is programmed to the latest software version.
• Hardware fault - return drive to supplier.

This trip is called by the Pump software in the event of a Dry Well Low Load detection when Dry Well Low Load Mode (29.059) = Trip.

EEPROM Fail trip indicates that default parameters have been loaded because of the reasons given below.

The drive holds two banks of user save parameters and two banks of power down save parameters in non-volatile memory. If the last bank of either set of parameters that was saved is corrupted a User Save or Power Down Save trip is produced. If one of these trips occurs the parameters values that were last saved successfully are used. It can take some time to save parameters when requested by the user and if the power is removed from the drive during this process it is possible to corrupt the data in the non-volatile memory. The Power Down Save trip can occur if the d.c. bus is discharged too quickly after the supply has been removed, for example with the use of external discharge resistors.

If both banks of user save parameters or both banks of power down save parameters are corrupted or one of the other conditions given in the table above occurs an EEPROM Fail.2 trip is produced. If this trip occurs it is not possible to use the data that has been saved previously, and so the drive will be in lowest allowed drive mode with default parameters. The trip can only be reset if Parameter mm.000 (mm.000) is set to 10, 11, 1233 or 1244 or if Load Defaults (11.043) is set to a non-zero value.

Recommended actions:

• Default the drive and perform a drive reset.
• Allow sufficient time to perform a save before the supply to the drive is removed. Disconnect any external discharge resistors that maybe used to discharge the d.c. bus quickly after the supply has been removed.
• If the trip persists, return drive to the supplier.

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

This trip indicates that the drive hardware does not support the selected position feedback device type (see Control Board Identifier (11.067) for more information on control board capabilities).

Recommended actions:

• Upgrade drive to latest hardware version.

Not applicable

Not applicable

Not applicable

This trip is called by the Pump software in the event of the External Pump Fault Input (29.085) being set to On(1). 

External trip is initiated as shown in the table below.

Recommended actions:

• Check the Safe Torque Off signal voltage on terminal 31 is 24V.
• Check the value of STO Input 01 State (08.009) which indicates the digital state of terminal 31.
• If external trip detection of the Safe Torque Off input is not required, set External Trip Mode  (08.010) to Off (0).
• Check the value of External Trip (10.032).
• Select "Destinations" (or enter 12001) in Pr mm.000 and check for a parameter controlling External Trip (10.032).
• Ensure External Trip (10.032) or User Trip (10.038) (=6) is not being used by serial comms.

This trip indicates that the total current drawn from the 24V user supply or from the digital output has exceeded the limit. A trip is initiated if one or more of the following conditions:

• Maximum output current from one digital output is 100mA.
• The combined maximum output current from outputs 1 and 2 is 100mA.
• The combined maximum output current from output 3 and +24V output is 100mA.

Recommended actions:

• Check total loads on digital outputs.
• Check control wiring is correct.
• Check output wiring is undamaged.

This trip occurs in RFC-S mode when the drive has detected that the motor inductances are not suitable for the operation being attempted. The trip is either caused because the ratio or difference between Ld and Lq is too small or because the saturation characteristic of the motor cannot be measured.

If the inductance ratio or difference is too small this is because one of the following conditions is true:

(No-load Lq (05.072)- Ld (05.024)) / Ld (05.024) < 0.2

(No-load Lq (05.072) - Ld (05.024)) < (K / Full Scale Current Kc (11.061)) H

where:

If the saturation characteristic of the motor cannot be measured this is because when the flux in the motor is changed the measured value of Ld does not change sufficiently due to saturation to be measured. When half of Rated Current (05.007) is applied in the d axis of the motor in each direction the inductance must change by at least (K / (2 x Full Scale Current Kc (11.061))) H.

The specific reasons for each of the sub-trips are given in the table below.

Not applicable

Multi-power module drive interconnection cable error. The sub-trip "xx000" indicates which power module has detected the fault where xx is the power module number. This trip is also initiated if the number of modules present changes from the number of modules detected at power-up. In this case the sub-trip is the number of modules that are still communicating correctly.

Not applicable

Not applicable

Not applicable

This trip is initiated if the low load detector is set up to produce a trip on low load detection and this condition occurs. See Enable Trip On Low Load (04.029).

This trip is called by the Pump software in the event of the Motor Thermal Protection Input (29.086) being set to Off(0) when Motor Thermal Protection Enable (29.087) = On(1).

This trip indicates a motor thermal overload based on the Rated Current (05.007) and Motor Thermal Time Constant 1 (04.015). Motor Protection Accumulator (04.019) displays the motor temperature as a percentage of the maximum value. The drive will trip on Motor Too Hot when Motor Protection Accumulator (04.019) gets to 100%.

Recommended actions:

• Ensure the load is not jammed / sticking.
• Check the load on the motor has not changed.
• If seen during an auto-tune test in RFC-S mode, ensure the Rated Current (05.007) is = Heavy duty current rating of the drive.
• Tune the Rated Speed (05.008) (RFC-A mode only).
• Check feedback signal for noise.
• Ensure the Rated Current (05.007) is not zero.

This trip is initiated if there is a problem detected when an electronic name plate transfer from the motor to the drive is initiated. The reasons for the trip are given below:

This trip is called by the Pump software in the event of a loss Ethernet RTMoE comms from this drive to it's Leader in a Multi-leader system. This trip is enabled when Multi-leader Network Loss Mode (29.133) = Trip. The trip may be disabled by setting Multi-leader Network Loss Mode (29.133) = Run Single Pump where instead of tripping the drive will run as a single pump, independent of the Leader.

An encoder supported by the auto-discovery process has not been found (see Discovery in P1 Device Type (03.038) for more information on this process). Please ensure that a supported device is connected to the drive P1 interface and the required P1 Supply Voltage (03.036) is set for the device. The sub-trip will always be 1 as only the P1 interface supports auto-discovery.  

Recommended actions:

• Ensure the position feedback device is correctly connected to the drive.
• Ensure that P1 Supply Voltage (03.036) is set correctly.
• Set P1 Device Type (03.038) to the type of the connected position feedback device.
  
  

No trip has been stored in this position in the trip log.

This trip indicates that braking IGBT over-temperature has been detected based on firmware thermal model.

Recommended actions:

• Check braking resistor value is greater than or equal to the minimum resistance value.

This trip indicates that a control stage over-temperature has been detected. From the sub-trip "xxyzz", the cause of the trip can be identified as follows:

*1 indicates the trip has been initiated by the active input rectifier control if present.

Recommended actions:

• Check enclosure / drive fans are still functioning correctly.
• Check enclosure ventilation paths.
• Check enclosure door filters.
• Increase ventilation.
• Reduce the drive switching frequency.
• Check ambient temperature.

This trip indicates a DC bus component over temperature based on a firmware thermal model. The drive includes a thermal protection system to protect the DC bus components within the drive. This includes the effects of the output current and DC bus ripple. The estimated temperature is displayed as a percentage of the trip level in Percentage Of d.c. Link Thermal Trip Level (07.035). If this parameter reaches 100% then an OHt dc bus trip with sub-trip 200 is initiated. The drive will attempt to stop the motor before tripping. If the motor does not stop in 10 seconds then the drive trips immediately.

It is also possible in a multi-power module system for d.c. link over-temperature to be detected from within the power stage. From this source the estimated temperature as a percentage of trip is not available and the trip is indicated as follows:

Recommended actions:

• Check the AC supply voltage balance and levels.
• Check the DC bus ripple level.
• Reduce duty cycle.
• Reduce motor load.
• Check output current stability. If unstable;
• Check the motor map settings with motor nameplate (Rated Frequency (05.006), Rated Current (05.007), Rated Speed (05.008), Rated Voltage (05.009), Rated Power Factor (05.010) and Number Of Motor Poles (05.011)) - (All modes).
• Disable slip compensation (Enable Slip Compensation (05.027) = Off (0)) - (Open-loop).
• Disable dynamic V to F operation (Low Load Power Saving (05.013) = Off (0)) - (Open-loop).
• Select fixed boost (Open-loop Control Mode (05.014) = Fixed (2)) - (Open-loop).
• Select high stability space vector modulation (High Stability Space Vector Modulation (05.019) = On (1)) - (Open-loop).
• Disconnect the load and complete a rotating auto-tune (Auto-tune (05.012) = 2) - (RFC-A and RFC-S).
• Auto-tune the rated speed value (Rated Speed Optimisation Select (05.016) = 1) - (RFC-A and RFC-S).
• Reduce speed loop gains (Speed Controller Proportional Gain Kp1 (03.010), Speed Controller Integral Gain Ki1 (03.011) and Speed Controller Differential Feedback Gain Kd1 (03.012)) - (RFC-A and RFC-S).
• Add a speed feedback filter value (P1 Feedback Filter (03.042)) - (RFC-A and RFC-S).
• Add a current demand filter (Current Reference Filter 1 Time Constant (04.012)) - (RFC-A and RFC-S).
• Check encoder signals for noise with an oscilloscope - (RFC-A and RFC-S).
• Check encoder mechanical coupling - (RFC-A and RFC-S).

This trip indicates that an IGBT junction over-temperature has been detected based on a firmware thermal model. The sub-trip indicates which model has initiated the trip in the form xxyzz as given below.

Recommended actions with sub-trip 100:

• Reduce the selected drive switching frequency.
• Ensure Auto-switching Frequency Change (05.035) is set to Enabled (0).
• Reduce duty cycle.
• Decrease acceleration / deceleration rates.
• Reduce motor load.
• Check the DC bus ripple.
• Ensure all three input phases are present and balanced.

Recommended actions with sub-trip 300:

• Reduce the braking load.

Recommended actions with sub-trip 400:

• Check the AC supply voltage balance and levels.
• Check the DC bus ripple level.
• Reduce duty cycle.
• Reduce motor load.

This trip indicates that a power stage over-temperature has been detected. The sub-trip "xxyzz" indicates which thermistor is indicating the over-temperature. The thermistor numbering is different for a single module type drive (i.e. no parallel board fitted) and a multi-module type drive (i.e. parallel board fitted with one or more power modules) as shown below:

Single module type drive:

Multi-module type system:

Note that the power module that has caused the trip cannot be identified except for the braking IGBT temperature measurement.

Recommended actions:

• Check enclosure / drive fans (including heatsink fans and d.c. link capacitor bank fan if fitted) are still functioning correctly.
• Force the heatsink fans to run at maximum speed.
• Check enclosure ventilation paths.
• Check enclosure door filters.
• Increase ventilation.
• Reduce duty cycle.
• Decrease acceleration / deceleration rates.
• Reduce motor loads.
• Check the derating tables and confirm the drive is correctly sized for the application.
• Use a drive with larger current / power rating.

This trip indicates that the instantaneous drive output current has exceeded the drive over current threshold.

The over current threshold is the maximum current the drive can measure and is defined by Full Scale Current Kc (11.061).

Recommended actions:

• Acceleration / deceleration rate is too short.
• If seen during auto-tune reduce the voltage boost.
• Check for short circuit on the output cabling.
• Check integrity of the motor insulation using a Megger.
• Check feedback device wiring.
• Check feedback drive mechanical coupling.
• Check feedback signals are free from noise.
• Check motor cable is within limits for the frame size.
• Reduce the speed loop gains (Speed Controller Proportional Gain Kp1 (03.010), Speed Controller Integral Gain Ki1 (03.011), Speed Controller Differential Feedback Gain Kd1 (03.012)).
• Check that the phase angle auto-tune has been completed (RFC-S mode only).
• Reduce the current loop gains (RFC-A and RFC-S modes only).
• If parameters 05.067 or 05.069 have been set to a non-zero value, ensure that the values are not too low (RFC-S mode only).
• Ensure that the motor has sufficent inductance. Some high speed synchronous motors can have a very low inductance. It maybe necessary to fit an inductor between the drive and motor.

This trip indicates that an over-current has been detected in braking IGBT or braking IGBT protection has been activated. The braking IGBT over-current trip is detected within the power system. If the drive is a single module drive then there is no sub-trip. If the drive is a multi-power module drive the following sub-trip is used to indicate the source of the trip.

Recommended actions:

• Check brake resistor wiring.
• Check braking resistor value is greater than or equal to the minimum resistance value.
• Check braking resistor insulation.

This trip indicates that the short circuit protection for the drive output stage has been activated. The table below shows where the trip has been detected.

Recommended actions:

• Disconnect the motor cable at the drive end and check the motor and cable insulation with a Megger.
• Replace the drive.

This trip indicates that an over-current condition has been detected in the rectifier snubbing circuit, The exact cause of the trip can be identified by the sub-trip number.

*For a parallel power-module system the rectifier number will be one as it is not possible to determine which rectifier has detected the fault.

Recommended actions:

• Ensure the internal EMC filter is installed.
• Ensure the motor cable length does not exceed the maximum for selected switching frequency.
• Check for supply voltage imbalance.
• Check for supply disturbance such as notching from a DC drive.
• Check the motor and motor cable insulation with a Megger.
• Fit an output line reactor or sinusoidal filter.

During drive mode changeover option modules must acknowledge that they have stopped accessing the communications system between the option slots and the drive. If an option module does not do this in the allowed time then this trip is produced.

Recommended actions:

• Reset the trip.
• If the trip persists, replace the option module.

This trip indicates that phase loss has been detected at the drive output.

*These sub-trips could also indicate that the upper IGBT has failed in the indicated phase.

Recommended actions:

• Check motor and drive connections.
• To disable the trip set Output Phase Loss Detection Enable (06.059) to zero.

In open-loop mode, if the Output Frequency (05.001) exceeds the threshold set in Over Speed Threshold (03.008) in either direction, an Over Speed trip is produced. In RFC-A and RFC-S modes, if the Speed Feedback (03.002) exceeds the threshold set in Over Speed Threshold (03.008) in either direction, an Over Speed trip is produced. If Over Speed Threshold (03.008) is set to 0.0 the threshold is then equal to 1.2 x the value set in Maximum Reference Clamp (01.006).

Recommended action:

• Reduce the Speed Controller Proportional Gain Kp1 (03.010) to reduce the speed overshoot (RFC-A and RFC-S modes only).

The above description relates to a standard over speed trip, however in RFC-S mode it is possible to produce an Overspeed trip with sub-trip 1. This is caused if the speed is allowed to exceed the safe level in RFC-S mode with flux weakening. See Enable High Speed Mode (05.022) for details.

This trip indicates that the DC bus voltage has exceeded VM_DC_VOLTAGE[MAX], or the DC bus voltage has been higher than the maximum continuous voltage level for a period of time. The trip threshold varies depending on voltage rating of the drive as shown below.

The exact cause of the trip can be identified by the sub-trip number.

Recommended actions:

• Increase deceleration ramp.
• Connect a braking resistor to the drive.
• Decrease the braking resistor value (staying above the minimum value).
• If no braking resistor is fitted ensure that a standard ramp mode is selected in Ramp Mode (02.004).
• Enable S-ramps.
• Check nominal AC supply level.
• Check motor insulation using a Megger.
• If the trip occurs when the drive is not enabled,
• Check for supply disturbances which could cause the DC bus level to rise.
• Remove the internal EMC filter.

This trip is called by the Pump software in the event of the over-cycle protection scheme counting too may starts per hour when Over-cycle Mode (29.127) = Trip.

The level of supply phase imbalance has cause the negative phase sequence components to exceed the threshold defined by Phase Imbalance Threshold .

This trip indicates that the drive has detected an input phase loss or large supply imbalance. Phase loss can be detected directly from the supply where the drive has a thyristor base charge system (Frame size 7 and above). If phase loss is detected using this method the drive trips immediately and the xx part of the sub-trip is set to 01. In all sizes of drive phase loss is also detected by monitoring the ripple in the d.c. link voltage in which case the drive attempts to stop the drive before tripping unless bit 2 of Action On Trip Detection (10.037) is set to one. When phase loss is detected by monitoring the ripple in the d.c. link voltage the xx part of the sub-trip is zero.

(1) Input phase loss detection can be disabled when the drive required to operate from the DC supply or from a single phase supply in Input Phase Loss Detection Mode (06.047).

(2) For a parallel power-module system the rectifier number will be one as it is not possible to determine which rectifier has detected the fault.

This trip does not occur in regen mode.

Recommended actions:

• Check that the input power supply connections are good and tightened correctly.
• Check the AC supply voltage balance and level at full load.
• Check the DC bus ripple level with an isolated oscilloscope.
• Check the output current stability.
• Reduce the duty cycle.
• Reduce the motor load.
• Disable the phase loss detection by setting Input Phase Loss Detection Mode (06.047) to Disabled.

If position feedback is being used this trip indicates that the phase offset angle in Position Feedback Phase Angle (03.025) is incorrect and that the drive is unable to control the motor correctly.

Recommended actions:

• Check the encoder wiring.
• Check the encoder signals for noise with an oscilloscope.
• Check encoder mechanical coupling.
• Perform an auto-tune to measure the encoder phase angle or manually enter the correct phase angle into Position Feedback Phase Angle (03.025).
• Spurious Phasing Error trips can sometimes be seen in very dynamic applications. This trip can be disabled by setting Over Speed Threshold (03.008) to a value greater than zero.

If sensorless control is being used this indicates that significant instability has occurred and the motor has accelerated without control. For low saliency motors (Active Saliency Torque Mode (05.066) < 2) this operates in the same way as when position feedback is used, based on the speed of the motor and the voltages applied. For high saliency motors (Active Saliency Torque Mode (05.066) = 2)  this type of detection cannot be used and the over-speed trip should be used instead. However this trip is used for high saliency motors when low speed control using current injection is being used (Active Saliency Torque Mode (05.066) = 2) and control is lost because the motor has become non-salient. The saliency of most permanent magnet motors reduces with load, and so Low Speed Sensorless Mode Current (05.071) must be set to a level to limit the current so that the motor remains salient enough for control.

Recommended actions:

• Ensure that the motor parameters are set-up correctly.
• Reduce the speed controller gains.
• If high saliency control is being used ensure that Low Speed Sensorless Mode Current (05.071) is set to a low enough level, so that the motor remains salient at low speeds and higher loads.
• This trip can be disabled by setting Over Speed Threshold (03.008) to a value greater than zero.

This trip is called by the Pump software in the event of the main process PID1 feedback going above the PID Feedback High Trip Threshold (29.041). This trip can be disabled by setting PID Feedback High Trip Threshold (29.041) = 0.

This trip is called by the Pump software in the event of a loss of main process PID1 feedback when PID Feedback Loss Action (29.048) = Trip and Analog Input 1 Current Loop Loss (07.028) = On(1).

This trip is called by the Pump software in the event of the main process PID1 feedback going below the PID Feedback Low Threshold (29.044). This trip can be disabled by setting PID Feedback Low Mode (29.043) to Disabled.

A Power Comms trip indicates a communications problem within the power system of the drive. The reason for the trip can be identified by the sub-trip number.

*For a parallel power-module system the rectifier number will be one as it is not possible to determine which rectifier has detected the fault.

Recommended actions:

• Hardware fault - contact the supplier of the drive. This does not apply if the sub-trip is 1100 which indicates that the active rectifier bootloader has been activated.

This trip can be generated either from the drive control system or from the power system.

This trip is produced if there is an error in the configuration data stored in the power system. If the source of the trip is the control system then the trip related to the table that is uploaded from the power system at power-up.

Recommended actions:

• Hardware fault - contact the supplier of the drive.

This trip indicates that an error has been detected in the power down save parameters stored in non-volatile memory.

On drives other than Digitax HD, Power down save parameters are saved when the drive enters the under voltage state after the supply has been removed. This trip can occur if the d.c. bus is discharged too quickly after the supply is removed as the drive then doesn't have enough time to save these parameters before the internal power supply in the drive shuts down resulting in corruption of the saved data.

Recommended actions:

• Perform a 1001 save in Pr mm.000 to ensure that the trip doesn't occur the next time the drive is powered up.
• Check to see if an external discharge resistor is a connected to the d.c. bus when the supply is removed and if so, disconnect this resistor. If it is necessary to discharge the d.c. bus quickly after the supply is removed, then wait for at least 0.5s after the drive enters the under voltage state before connecting the discharge resistor.

This trip indicates that one or more internal power supply rails are outside limits or overloaded.

*For a parallel power-module system the rectifier number will be zero as it is not possible to determine which rectifier has detected the fault.

Recommended actions:

• Remove any option modules and perform a reset.
• Remove encoder connection and perform a reset.
• Hardware fault within the drive - return the drive to the supplier.

The total user load of the drive and option modules has exceeded the internal 24V power supply limit. The user load consists of the following:

• The digital outputs on the drive.
• The digital outputs on any option module fitted to the drive (e.g. SI-I/O, SI-I/O V2 etc.).
• The encoder power supply output on the drive.
• The encoder power supply output on any option module fitted to the drive (e.g. SI-Encoder, SI-Encoder V2 or SI-Universal Encoder). 

If the sub-trip code is 100, this indicates that this fault has been detected by the control board for the active input converter if present.

Recommended actions:

• Reduce the user load and reset the drive.
• Provide an external 24V power supply to the control terminals of the drive.
• Remove all option modules.

This trip indicates that there is a voltage rating or current rating mismatch in a multi-module drive system. This trip is only applicable to modular drives that are connected in parallel. A mixture of power modules with different voltage or current ratings within the same multi-module drive system is not allowed and will cause a Rating Mismatch trip.

Recommended actions:

• Ensure that all modules in a multi-modular drive system are of the same frame size and rating (voltage and current).
• Hardware fault - contact the supplier of the drive.

A rectifier has not been set-up correctly in a multi-power module system.

Recommended actions:

• Check the inter-power module wiring

This trip value is used in Unidrive SP for an under voltage trip. The under voltage condition is now a drive state, and so this trip is no longer used by the drive.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

If this trip occurs please consult the drive supplier.

If this trip occurs please consult the drive supplier.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

Reserved trip number.

This is not a valid trip number as this value is used in User Trip (10.038) to reset the drive.

This is not a valid trip number as this value is used in User Trip (10.038) to reset the trip logs.

This trip indicates that either the value being used for motor stator resistance is too high or that an attempt to do a test involving measuring motor stator resistance has failed. The maximum for the stator resistance parameters is generally higher than the maximum value that can be used in the control algorithms. If the value exceeds (V_FS / sqrt(2)) / Full Scale Current Kc (11.061), where V_FS is the full scale d.c. link voltage defined by VM_DC_VOLTAGE, then this trip is initiated. If the value is the result of a measurement made by the drive then sub-trip 1 is applied, or if it is because the parameter has been changed by the user then sub-trip 3 is applied. During the stator resistance section of auto-tuning an additional test is performed to measure the drive inverter characteristics to provide the compensation necessary for dead-times. If the inverter characteristic measurement fails then sub-trip 2 is applied.

Recommended actions:

• Check that a value has not been entered in the stator resistance for either motor map does not exceed the allowed range.
• Check the motor cable / connections.
• Check the motor phase to phase resistance at the drive terminals.
• Check the motor phase to phase resistance at the motor terminals.
• Ensure the stator resistance of the motor falls within the range of the drive model.
• Check the integrity of the motor stator winding using an insulation tester.
• Select fixed boost mode (Open-loop Control Mode (05.014) = Fixed) and verify the output current waveforms with an oscilloscope.
• Replace the motor.

If the option module fitted in option slot 1 is different in any way to the option module present at the last power-down, then this trip is produced. Option modules can define the structure of their set-up and applications menus provided by the drive. This trip is initiated if a different module is fitted, but also if the structure of the menus provided by the option module has changed. The priority order for the option module different trips is Slot1 Different highest, then Slot2 Different, then Slot3 Different then Slot4 Different. The sub-trip indicates the reason for the trip as given below.

The trip can be reset and the module will operate correctly. If sub-trips 2 to 4 occur, then no further action is required and the trip will not occur on a subsequent power-up. If any other sub-trips occur a parameter save is required to prevent further trips on a subsequent power-up.

Recommended actions:

• Turn off the power, ensure the correct option modules are installed in the correct option slots and re-apply the power.
• Confirm that the currently installed option module is correct, ensure option module parameters are set correctly and perform a user save in Pr mm.000.

The option module in option slot 1 has indicated an error. The option module can give the reason for the error and this is shown in the sub-trip number. As default the sub-trip number is shown as a number on the display, however, it is possible for the option module to supply sub-trip number strings which will be displayed instead of the number if available.

Recommended actions:

• See relevant Option Module User Guide for details of the trip.

This trip indicates that there is a fault with the option module in option slot 1 that means that this module cannot operate. The possible causes of the trip are given by the sub-trip value.

Recommended actions:

• Ensure the option module is installed correctly.
• If the option module has been reprogrammed check that this process was followed correctly.
• Replace the option module.

Each option module fitted in the drive is identified at power-up and the option fitted is stored by the drive in its non-volatile memory. If an option module was fitted in slot 1 at power-down, but that option module has subsequently been removed before power up then this trip is produced. The sub-trip number gives the identification code of the option module that has been removed. The priority order for the option module not fitted trips is Slot1 Not Fitted highest, then Slot2 Not Fitted, then Slot3 Not Fitted then Slot4 Not Fitted. If a drive user parameter save is not initiated before the drive power is removed and re-applied this trip will occur again after the next power-up. Until a drive user parameter save is performed it is possible to refit the module, which will then prevent the trip from occurring, and retain the parameter settings in the set-up menu (Menu 15) and applications menu (Menu 25). If a user parameter save is performed while this trip is active, the drive is powered down, the module refitted and the drive powered up, defaults settings will be loaded for these menus.

Recommended actions:

• Ensure the option module is installed correctly.
• Re-install the option module.
• To confirm that the removed option module is no longer required perform a save function in Pr mm.000.

It is possible for some option modules to start a watchdog function in the drive. Once this has been done, the option module should service the watchdog regularly. This trip indicates that the watchdog has been started and then not service in time. 

Recommended actions:

• Check the option module documentation for the reason for the trip.

If the option module fitted in option slot 2 is different in any way to the option module present at the last power-down, then this trip is produced. Option modules can define the structure of their set-up and applications menus provided by the drive. This trip is initiated if a different module is fitted, but also if the structure of the menus provided by the option module has changed. The priority order for the option module different trips is Slot1 Different highest, then Slot2 Different, then Slot3 Different then Slot4 Different. The sub-trip indicates the reason for the trip as given below.

The trip can be reset and the module will operate correctly. If sub-trips 2 to 4 occur, then no further action is required and the trip will not occur on a subsequent power-up. If any other sub-trips occur a parameter save is required to prevent further trips on a subsequent power-up.

Recommended actions:

• Turn off the power, ensure the correct option modules are installed in the correct option slots and re-apply the power.
• Confirm that the currently installed option module is correct, ensure option module parameters are set correctly and perform a user save in Pr mm.000.

The option module in option slot 2 has indicated an error. The option module can give the reason for the error and this is shown in the sub-trip number. As default the sub-trip number is shown as a number on the display, however, it is possible for the option module to supply sub-trip number strings which will be displayed instead of the number if available.

Recommended actions:

• See relevant Option Module User Guide for details of the trip.

This trip indicates that there is a fault with the option module in option slot 2 that means that this module cannot operate. The possible causes of the trip are given by the sub-trip value.

Recommended actions:

• Ensure the option module is installed correctly.
• If the option module has been reprogrammed check that this process was followed correctly.
• Replace the option module.

Each option module fitted in the drive is identified at power-up and the option fitted is stored by the drive in its non-volatile memory. If an option module was fitted in slot 2 at power-down, but that option module has subsequently been removed before power up then this trip is produced. The sub-trip number gives the identification code of the option module that has been removed. The priority order for the option module not fitted trips is Slot1 Not Fitted highest, then Slot2 Not Fitted, then Slot3 Not Fitted then Slot4 Not Fitted. If a drive user parameter save is not initiated before the drive power is removed and re-applied this trip will occur again after the next power-up. Until a drive user parameter save is performed it is possible to refit the module, which will then prevent the trip from occurring, and retain the parameter settings in the set-up menu (Menu 16) and applications menu (Menu 26). If a user parameter save is performed while this trip is active, the drive is powered down, the module refitted and the drive powered up, defaults settings will be loaded for these menus.

Recommended actions:

• Ensure the option module is installed correctly.
• Re-install the option module.
• To confirm that the removed option module is no longer required perform a save function in Pr mm.000.

It is possible for some option modules to start a watchdog function in the drive. Once this has been done, the option module should service the watchdog regularly. This trip indicates that the watchdog has been started and then not service in time. 

Recommended actions:

• Check the option module documentation for the reason for the trip.

If the option module fitted in option slot 3 is different in any way to the option module present at the last power-down, then this trip is produced. Option modules can define the structure of their set-up and applications menus provided by the drive. This trip is initiated if a different module is fitted, but also if the structure of the menus provided by the option module has changed. The priority order for the option module different trips is Slot1 Different highest, then Slot2 Different, then Slot3 Different then Slot4 Different. The sub-trip indicates the reason for the trip as given below.

The trip can be reset and the module will operate correctly. If sub-trips 2 to 4 occur, then no further action is required and the trip will not occur on a subsequent power-up. If any other sub-trips occur a parameter save is required to prevent further trips on a subsequent power-up.

Recommended actions:

• Turn off the power, ensure the correct option modules are installed in the correct option slots and re-apply the power.
• Confirm that the currently installed option module is correct, ensure option module parameters are set correctly and perform a user save in Pr mm.000.

The option module in option slot 3 has indicated an error. The option module can give the reason for the error and this is shown in the sub-trip number. As default the sub-trip number is shown as a number on the display, however, it is possible for the option module to supply sub-trip number strings which will be displayed instead of the number if available.

Recommended actions:

• See relevant Option Module User Guide for details of the trip.

This trip indicates that there is a fault with the option module in option slot 3 that means that this module cannot operate. The possible causes of the trip are given by the sub-trip value.

Recommended actions:

• Ensure the option module is installed correctly.
• If the option module has been reprogrammed check that this process was followed correctly.
• Replace the option module.

Each option module fitted in the drive is identified at power-up and the option fitted is stored by the drive in its non-volatile memory. If an option module was fitted in slot 3 at power-down, but that option module has subsequently been removed before power up then this trip is produced. The sub-trip number gives the identification code of the option module that has been removed. The priority order for the option module not fitted trips is Slot1 Not Fitted highest, then Slot2 Not Fitted, then Slot3 Not Fitted then Slot4 Not Fitted. If a drive user parameter save is not initiated before the drive power is removed and re-applied this trip will occur again after the next power-up. Until a drive user parameter save is performed it is possible to refit the module, which will then prevent the trip from occurring, and retain the parameter settings in the set-up menu (Menu 17) and applications menu (Menu 27). If a user parameter save is performed while this trip is active, the drive is powered down, the module refitted and the drive powered up, defaults settings will be loaded for these menus.

Recommended actions:

• Ensure the option module is installed correctly.
• Re-install the option module.
• To confirm that the removed option module is no longer required perform a save function in Pr mm.000.

It is possible for some option modules to start a watchdog function in the drive. Once this has been done, the option module should service the watchdog regularly. This trip indicates that the watchdog has been started and then not service in time. 

Recommended actions:

• Check the option module documentation for the reason for the trip.

If the option module fitted in option slot 4 is different in any way to the option module present at the last power-down, then this trip is produced. Option modules can define the structure of their set-up and applications menus provided by the drive. This trip is initiated if a different module is fitted, but also if the structure of the menus provided by the option module has changed. The priority order for the option module different trips is Slot1 Different highest, then Slot2 Different, then Slot3 Different then Slot4 Different. The sub-trip indicates the reason for the trip as given below.

The trip can be reset and the module will operate correctly. If sub-trips 2 to 4 occur, then no further action is required and the trip will not occur on a subsequent power-up. If any other sub-trips occur a parameter save is required to prevent further trips on a subsequent power-up.

Recommended actions:

• Turn off the power, ensure the correct option modules are installed in the correct option slots and re-apply the power.
• Confirm that the currently installed option module is correct, ensure option module parameters are set correctly and perform a user save in Pr mm.000.

The option module in option slot 4 has indicated an error. The option module can give the reason for the error and this is shown in the sub-trip number. As default the sub-trip number is shown as a number on the display, however, it is possible for the option module to supply sub-trip number strings which will be displayed instead of the number if available.

Recommended actions:

• See relevant Option Module User Guide for details of the trip.

This trip indicates that there is a fault with the option module in option slot 4 that means that this module cannot operate. The possible causes of the trip are given by the sub-trip value.

Recommended actions:

• Ensure the option module is installed correctly.
• If the option module has been reprogrammed check that this process was followed correctly.
• Replace the option module.

Each option module fitted in the drive is identified at power-up and the option fitted is stored by the drive in its non-volatile memory. If an option module was fitted in slot 4 at power-down, but that option module has subsequently been removed before power up then this trip is produced. The sub-trip number gives the identification code of the option module that has been removed. The priority order for the option module not fitted trips is Slot1 Not Fitted highest, then Slot2 Not Fitted, then Slot3 Not Fitted then Slot4 Not Fitted. If a drive user parameter save is not initiated before the drive power is removed and re-applied this trip will occur again after the next power-up. Until a drive user parameter save is performed it is possible to refit the module, which will then prevent the trip from occurring, and retain the parameter settings in the set-up menu (Menu 24) and applications menu (Menu 28). If a user parameter save is performed while this trip is active, the drive is powered down, the module refitted and the drive powered up, defaults settings will be loaded for these menus.

Recommended actions:

• Ensure the option module is installed correctly.
• Re-install the option module.
• To confirm that the removed option module is no longer required perform a save function in Pr mm.000.

It is possible for some option modules to start a watchdog function in the drive. Once this has been done, the option module should service the watchdog regularly. This trip indicates that the watchdog has been started and then not service in time. 

Recommended actions:

• Check the option module documentation for the reason for the trip.

This trip indicates that more than one option slot has requested to customize application menus 18, 19 and 20. The sub-trip number indicates which option slot has been allowed to customize the menus.

Recommended actions:

• Ensure that only one of the Application modules is configured to customize the application menus 18, 19 and 20.

This trip indicates that the soft start relay in the drive has failed to close or the soft start monitoring circuit has failed.

Recommended actions:

• Hardware fault - contact the supplier of the drive.

Note: This trip does not exist in firmware V01.58.00.00 and later.

If an HFxx trip occurs then a Stored HF trip occurs each time the drive is powered up until this trip is reset. The sub-trip code is the number of the original HF trip. The Stored HF trip can be reset by first writing 1299 to Pr mm.000 and resetting the drive. The drive should then be power cycled. This trip is also reset if bootable files are present on a media card fitted in the drive at power-up which include a drive user program as File 002.

Recommended actions:

• Enter 1299 into Pr mm.000 and press reset to clear the trip, and then power cycle the drive.

An option module, derivative image or user program image has requested more parameter RAM than is allowed. The RAM allocation is checked in order of resulting sub-trip numbers, and so the failure with the highest sub-trip number is given. The sub-trip is calculated as (parameter size x 1000) + (parameter type x 100) + sub-array number. Note that if this trip occurs, all menu customisation provided by option modules, the derivative image or the user program image is not used. The tables below show the values corresponding to the parts of the sub-trip number.

This trip indicates a fault with a thermistor in the drive (i.e. open circuit or short circuit).

*For a parallel power-module system the rectifier number will be one as it is not possible to determine which rectifier has detected the fault.

Recommended actions:

• Hardware fault - contact the supplier of the drive.

If hardware based braking resistor thermal monitoring is provided and the resistor overheats this trip is initiated. If the braking resistor is not present then this trip must be disabled with bit 3 of Action On Trip Detection (10.037) to prevent this trip.

Recommended actions:

• Check braking resistor wiring.
• Check braking resistor value is greater than or equal to the minimum resistance value.
• Check braking resistor insulation.

This trip indicates that a temperature sensor connected to an analog input or terminal 15 on the position feedback interface (where applicable) has a low impedance (i.e. < 50 ohms). The cause of the trip can be identified by the sub-trip number.

This trip indicates that a temperature sensor connected to one of the analog inputs or terminal 15 on the position feedback interface (15-way D-type connector) (where applicable) has indicated an over-temperature. The source of the trip can be identified by the sub-trip number.

In a standard drive this trip indicates that the power system has generated but did not identify the trip from the power system. The cause of the trip is unknown.

In a 4 quadrant drive this indicates that the input converter control system has initated a trip which is not included in the normal trip system. The sub-trip number indicates the reason for the trip. The value given corresonds to the values in Trip 0 (10.020). 

This trip is initiated if User Supply Select (06.072) = 1 or Low Under Voltage Threshold Select (06.067) = 1 or Backup Supply Mode Enable (06.068) = 1 and no user 24V present on the user 24V input. (Note that if an active input rectifier is present this trip could be produced with a sub-trip of 100. This simply indicates that the same error condition has been detected by the active input converter first.)

Recommended actions:

• Ensure that the user 24V supply is present on the control terminals.

This trip can be initiated from within an onboard user program using a function call which defines the sub-trip number.

Recommended actions:

• Check the user program.

An error has been detected in the onboard user program image. The sub-trip indicated the reason for the trip.

The following table gives the differences when compared to the derivative product image.

o

This trip indicates that an error has been detected in the user save parameters saved in non-volatile memory. For example, following a user save command, if the power to the drive was removed when the user parameters were being saved.

Recommended actions:

• Perform a user save in Pr mm.000 to ensure that the trip doesn't occur the next time the drive is powered up.
• Ensure that the drive has enough time to complete the save before removing the power to the drive.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.

This trip is not used by the drive and can be used for a user trip.