Failure Message Overview
Error
Number
Failure
Failure Name
Explanation
309
Err OLT
Stall prevention
Refer to
Failure 309: OLT-Error (STALL PREVENTION)
310
Err BE
Brake transistor
Short circuit in brake transistor circuit. Power off immediately!
Replace the inverter.
311
Err GF
Ground fault
Output overcurrent to ground.
1. Check the motor cable and motor for ground faults.
2. Disconnect the motor cable and try again. If you still have the
error, replace the inverter.
312
Err OHT*
Ext thermal relay
External thermal relay (TRM module, see electrical scheme) for
motor protection tripped. TRM module was only used on certain
machines with MCB controller and A500 inverter.
313
Err OPT
Option
Refer to
Failure 313-315: OPT/PUE-Error (OPTION FAULT/
314
Err PE
Corrupt memory
Memory was overwritten too many times. Replace inverter.
315
Err PUE
PU leave out
Refer to
Failure 313-315: OPT/PUE-Error (OPTION FAULT/
316
Err Ret*
Retry no over
The max number of retries after fault reached.
The actual inverter error code that causes the problem and
which should be solved, is stored just before Err 316 in the er-
ror log.
317
Err CPU
CPU Fault
Communication error of built in CPU. Replace inverter.
318
Err E.6
CPU Fault 6
Internal fault, if the fault is persistent, replace the inverter.
319
Err E.7
CPU Fault 7
Internal fault, if the fault is persistent, replace the inverter.
320
Err IPF
Instantaneous power failure
Power failure between 15 and 100ms. Check for bad contacts in
the power circuit. Repair the power supply.
321
Err UVT
Under voltage
Supply voltage too low. Check jumper P/+-P1.
322
Err LF
Output phase failure
Phase open detected on inverter output. Check for bad contacts or
defect (open) motor windings.
323
Err OP1*
Option slot 1
Problem with the option in slot 1 or option contact fault.
324
Err OP2*
Option slot 2
Problem with the option in slot 2 or option contact fault.
325
Err OP3*
Option slot 3
Problem with the option in slot 3 or option contact fault.
326
Err CTE
PU short circuit
Short circuit on the RS485 communication connector. Check for
short circuit in the communication cable.
327
Err P24
24VDC short circuit
Short circuit on the 24VDC power output (PC terminal). Check
for short circuit on the inverter control terminals.
Table 87
continues...
Troubleshooting
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Part No. D1631ENR7
Summary of Contents for IYG065J
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