Home » , » Unidrive Trip Code

No.
String
Cause of trip
1
UU
DC link under voltage. Under voltage trip and restart levels are as follows:
Drive voltage rating UU trip level UU restart level
200 175 215
400 330 425
575 435 590
690 435 590
2
OU
DC link over voltage. This could be because the d.c. link voltage has exceeded the maximum level or has remained above the maximum continuous level for more than 15s. This trip cannot be reset until the voltage falls below the maximum continuous level.
Drive voltage rating Instantaneous trip Max continuous level
200V 415V 400V
400V 830V 800V
575V 990V 955V
690V 1190V 1150V
If the drive is operating in low voltage battery mode the over voltage trip level is 1.45 x parameter 06.46.
3
OI.AC
AC instantaneous over current.
4
OI.br
Braking resistor instantaneous current trip.
5
PS
Internal drive power supply trip
6
Et
External trip (see 10.32)
7
O.SPd
Overspeed
8
PS.10V
10V user power supply overload
9
PS.24V
24V internal power supply overload
10
t010
User trip
11
tunE1
The position feedback did not change or required speed could not be reached during the inertia test (see 05.12)
12
tunE2
Position feedback direction incorrect, or motor could not be stopped during the inertia test, or minimal movement phasing test failed (see 05.12)
13
tunE3
Drive encoder commutation signals connected incorrectly, or measured inertia out of range, or motor was rotating when the minimal movement phasing test started (see 05.12)
14
tunE4
Drive encoder U commutation signal fail (see 05.12)
15
tunE5
Drive encoder V commutation signal fail (see 05.12)
16
tunE6
Drive encoder W commutation signal fail (see 05.12)
17
tunE7
Motor poles or encoder counts per revolution set-up incorrectly (see 05.12)
18
tunE
Auto-tune stopped before completion (see 05.12)
19
It.br
I2t on braking resistor (see 10.31)
20
It.AC
I2t on drive output current (see 04.15)
21
O.ht1
Drive over-heat (IGBT junctions) based on thermal model (see 05.18)
22
O.ht2
Drive over-heat based on heatsink temperature (see 07.04)
23
O.CtL
Drive over-heat based on control board temperature (see 07.05)
24
th
Motor thermistor trip (see 07.11)
25
thS
Motor thermistor short circuit (see 07.11)
26
O.Ld1
Digital output overload
27
O.ht3
Drive over-heat based on thermal model (see 07.35)
The drive will attempt to stop the motor before tripping. If the motor does not stop in 10seconds the drive trips immediately.
28
cL2
Analogue input 2 current mode: current loss (see 07.11)
29
cL3
Analogue input 3 current mode: current loss (see 07.11)
30
SCL
Serial comms timeout with remote keypad on drive 485 comms port
31
EEF
Internal drive EEPROM checksum. See trips 36 and 37 below. When this trip occurs the drive mode becomes Open-loop and all the parameters are set to default. The trip can only be removed by entering a load default command (i.e. 1233, 1244, etc.) into parameter x.00 before reseting the drive.
32
PH
High input voltage phase imbalance or input phase loss. Normally a motor load of between 50 and 100% or drive rating is required to trigger the trip. The drive will attempt to stop the motor before tripping except in Regen mode. This trip is initiated when phase loss is detected from d.c. link ripple.
33
rS
Failure to measure resistance during auto-tune or when starting in open-loop voltage modes 0 or 3. This is either because the resistance exceeds the maximum measurable value or the drive was not enabled (see 05.12, 05.14, 05.17)
34
Pad
If an LED or LCD keypad are fitted directly to the drive, and the drive is in keypad reference mode, and the keypad is removed the drive produces this trip.
35
CL.bit
Trip initiated from the control word (parameter 06.42)
36
SAVE.Er
The drive holds two banks of user save parameters in EEPROM. This trip indicates that the power was removed when parameters were being saved which resulted in an error in a user save parameter bank. The drive will revert back to the user save parameters that were last saved successfully. If errors occur in both banks an EEF trip is initiated. This trip will occur on every subsequent power up until parameters are saved again.
37
PSAVE.Er
Power down save parameters are saved during power down and can be saved when user parameters are saved. The drive holds two banks of power down save parameters in EEPROM. This trip indicates that the power was removed when parameters were being saved which resulted in an error in a power down save parameter bank. The drive will revert back to the power down save parameters that were last saved successfully. If errors occur in both banks an EEF trip is initiated. This trip will occur on every subsequent power up until power down save parameters are saved again (i.e. a power down on a normal supply or a parameter save is initiated by the user).
38
t038
User trip
39
L.SYNC
Drive failed to synchronise to the supply voltage in Regen mode (see 03.08)
40-89
t040 - t089
User trips
90
UP div0
User Program: attempted divide by zero
91
UP Par
User Program: attempted access to a non-existent parameter
92
UP ro
User Program: attempted write to a read only parameter
93
UP So
User Program: attempted read of a write only parameter. (This trip should never occur as there are no write only parameters in the drive.)
94
UP ovr
User Program: attempted out-of-range parameter write
95
UP OFL
User program: Variables and function block calls using more than the allowed RAM space (stack overflow)
96
UP uSEr
User program: program requested a trip
97
UP udf
User program: undefined trip
98
UP ACC
User Program: the user program in the drive is inaccessible during a transfer of a user program from a SMART card to the drive. This can occur if the user program file in the drive is being accessed via comms at the same time.
99
t99
User trip
100
 
Drive reset (see 10.38)
101
t101
User trip
102
Oht4.P
Power module rectifier over temperature
103
OIbr.P
Power module braking IGBT over current
104
OIAC.P
Power module over current detected from the module output currents
105
Oht2.P
Power module heatsink over temperature
106
OV.P
Power module over voltage
107
PH.P
Power module phase loss detection
108
PS.P
Power module power supply fail
109
OIdC.P
Power module over current detected from IGBT on state voltage monitoring
110
Unid.P
Power module unidentified trip
111-160
t111 - t160
User trips
161
EnC11
Drive encoder trip: A failure has occurred during the alignment of the analogue signals of a SINCOS encoder with the digital count derived from the sine and cosine waveforms and the comms position (if applicable). This fault is usually due to noise on the sine and cosine signals.
162
Enc12
Drive encoder trip: Hiperface encoder - The encoder type could not be identified during auto-configuration
163
Enc13
Drive encoder trip: EnDat encoder - The number of encoder turns read from the encoder during auto-configuration is not a power of 2
164
Enc14
Drive encoder trip: EnDat encoder - The number of comms bits defining the encoder position within a turn read from the encoder during auto-configuration is too large.
165
Enc15
Drive encoder trip: The number of periods per revolution calculated from encoder data during auto-configuration is either less than 2 or greater than 50000.
166
Enc16
Drive encoder trip: EnDat encoder - The number of comms bits per period for a linear encoder exceeds 255.
167
Enc17
Drive encoder trip: The periods per revolution obtained during auto-configuration for a rotary SINCOS encoder is not a power of two.
168- 175
t166- t175
User trips
176
EnP.Er
Data error from electronic nameplate data stored in selected position feedback device.
177
C.Boot
A write to a menu 0 parameter has been initiated via the keypad by exiting edit mode and parameter 11.42 is set for auto or boot mode, but the necessary boot file has not been created on the SMART card to take the new parameter value. This occurs when 11.42 is changed to auto or boot mode, but the drive is not subsequently reset.
178
C.BUSy
An attempt has been made to access a SMART card, but the SMART card is already being accessed by an option module.
179
C.Chg
An attempt has been made to store a data in a SMART card data block which already exists.
180
C.Optn
Parameter data or default difference data is being transferred from a SMART card to the drive, but the option module categories are different between source and destination 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 the default values and not the values from the card.
This trip also applies if a compare is attempted between the data block and the drive.
181
C.RdO
An attempt has been made to modify a read-only SMART card (i.e. erase the card, erase a file or create a file). A SMART card is read-only if the read-only flag has been set or the card contains data blocks with numbers from 500 to 999. Attempting to create data blocks with numbers from 500 to 999 will always cause a trip.
182
C.Err
An attempt has been made to transfer a data block from a SMART card to the drive or to compare a SMART card data block and the checksum is incorrect or the data structure on the card is incorrect.
183
C.dat
An attempt has been made to transfer a data block from a SMART card to the drive or to compare a SMART card data block and the block does not exist.
184
C.FULL
An attempt has been made to create a data block on a SMART card, but there is not enough space on the card.
185
C.Acc
An attempt has been made to access a SMART card, but a card is not present or communications failure has occurred between the drive and the card. This trip is also produced if an attempt is made to access a data block that has already been opened by an option module.
186
C.rtg
Parameter data or default difference data is being transferred from a SMART card to the drive, but the current and /or voltage ratings are different between source and destination 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 the default values and not the values from the card.
This trip also applies if a compare is attempted between the data block and the drive.
187
C.Typ
This trip is produced during a compare if the drive mode in the data block is different from the current drive mode and the file is a parameter or defaults differences file. This trip is also produced if an attempt is made to transfer parameters from a parameter or default difference to the drive if the drive mode in the data block is outside the allowed range of drive modes for the drive.
188
C.cpr
A compare has been carried out between a data block on a SMART card and the drive and the compare has failed. This trip only occurs if the compare has not already failed with the following trips: C.Typ, C.rtg, C.Optn, C.BUSy, C.Acc or C.Err
189
EnC1
Drive encoder trip: power supply short circuit
190
EnC2
Drive encoder trip: wire break
191
EnC3
Drive encoder trip: UVW phase angle incorrect whilst running (servo mode only) or SINOS phase error.
192
EnC4
Drive encoder trip: Comms timeout or set up transfer time too long
193
EnC5
Drive encoder trip: Checksum or CRC error or SSI not ready
194
EnC6
Drive encoder trip: Encoder has indicated an error or SSI power supply fail
195
EnC7
Drive encoder trip: Initialisation failed. (Initialisation is required because the encoder type parameter 03.38 has been changed, but initialisation has not occurred, or the initialisation process has failed due to encoder comms failure.)
196
EnC8
Drive encoder trip: Auto-configuration failed. (Auto-configuration has been requested by changing parameter 03.41, but an initialisation has not occurred to perform auto-configuration.)
197
EnC9
Drive encoder trip: Position feedback selected is not valid (i.e. not from a position feedback option module)
198
Enc10
Drive encoder trip: Servo mode phasing failure because the phasing angle (03.25 or 21.20) is incorrect.
199
dESt
Destination parameter clash
200
SL1.HF
Option module in slot 1: hardware fault. This could occur because the module cannot be identified, or the module has not indicated it is running within 5s of drive power-up, or an internal hardware fault has occurred in the module. If the module is removed after power-up the drive also produces this trip.
201
SL1.tO
Option module in slot 1: watchdog timeout. The module has started the watchdog system, but has not subsequently serviced the watchdog within the timeout period.
202
SL1.Er
Option module in slot 1: error. The module has detected an error and tripped the drive. The reason for the error is stored in parameter x.50.
203
SL1.nF
Option module in slot 1: not fitted. The option module is identified by the drive by an option code. The drive stores the codes of the modules fitted when the drive parameters are saved. The stored codes are compared with the codes from the option modules at power-up. If a module is not present, but a code is stored in drive EEPROM to indicate that it should be fitted the drive trips.
204
SL1.dF
Option module in slot 1: different fitted. The option module is identified by the drive by an option code. The drive stores the codes of the modules fitted when the drive parameters are saved. The stored codes are compared with the codes from the option modules at power-up. If a module is different to the code stored in drive EEPROM the drive trips.
205
SL2.HF
Option module in slot 2: Hardware fault
206
SL2.tO
Option module in slot 2: watchdog timeout
207
SL2.Er
Option module in slot 2: error
208
SL2.nF
Option module in slot 2: not fitted
209
SL2.dF
Option module in slot 2: different fitted
210
SL3.HF
Option module in slot 3: hardware fault
211
SL3.tO
Option module in slot 3: watchdog timeout
212
SL3.Er
Option module in slot 3: error
213
SL3.nF
Option module in slot 2: not fitted
214
SL3.dF
Option module in slot 3: different fitted
215
SL.rtd
An option module failed to recognise that the drive mode had changed.
216
t216
User trip
217-232
HF17 - HF32
Hardware faults

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