Failure Message Overview
Error
Number
Failure
Failure Name
Explanation
328
Err MB1*
Brake sequence error 1
Sequence errors during use of the brake function.
329
Err MB2*
Brake sequence error 2
330
Err MB3*
Brake sequence error 3
331
Err MB4*
Brake sequence error 4
332
Err MB5*
Brake sequence error 5
333
Err MB6*
Brake sequence error 6
334
Err MB7*
Brake sequence error 7
335
Err FIN
Heatsink overheat
Refer to
Failure 335: FIN-Error (COOLING FIN INVERTER
336
Err OSD*
Speed deviation excess
Too big speed deviation during vector control.
337
Err ECT*
Encoder signal loss
Problem with the encoder signal.
338
Err E.1*
Option alarm (connector1)
Occurs if there is a contact fault of the connector between the in-
verter and the communication option or if the communication op-
tion is fitted to connector 1 or 2 or if the switch of the plug-in
option is not on the default setting.
339
Err E.2*
Option alarm (connector2)
340
Err E.3*
Option alarm (connector3)
341
Err ILF*
Input phase failure
1 phase of the 3-ph input was lost for more than 1 second. Repair
the 3-phase power supply.
342
Err PTC
PTC thermistor operation
Overtemperature of motor PTC (switch AU/PTC must be on
PTC).
1. Check if motor cooling fan (if present) functions normally.
2. Check for contact faults in the wiring. Refer to electrical
scheme.
343
Err PE2
Parameter storage error
Problem with parameter storage (EEPROM failure). If the fault is
persistent, replace the inverter.
344
Err CDO*
Output Current detection
Current exceeded the output current detection level.
345
Err IOH
Inrush overheat
Resistor inrush current limit circuit overheated.
1. Do not switch on/off the inverter frequently.
2. Wait approximately 15 minutes and try again.
3. If the fault is persistent, replace the inverter.
346
Err SER*
Communication error
Communication problem on the RS485 terminals connector.
347
Err AIE*
Analog input error
Overcurrent or overvoltage on input terminal 2/4.
348
Err USB*
USB communication error
USB communication check time interval has elapsed.
349
Err OS*
Overspeed
Speed exceeded the limit during encoder feedback control.
Table 87
continues...
Troubleshooting
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Part No. D1631ENR7
Summary of Contents for IYG065J
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