WESCO NAVY WMA504EP, Manual

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DIAGNOSE FAILURE 300-301-302: OC-ERRORS (OVERCURRENT)
* : This option or function is not used. If you have this error anyway do the following :
1) Reload the inverter parameters.
2) If the fault is persistent, replace the inverter.
DIAGNOSE FAILURE 303-304-305 : OV-ERRORS (OVERVOLTAGE)
If the DC-voltage on the capacitors is too high, the inverter will generate OV error.
98
Err N° Failure Failure Name Explanation
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 (see 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 some time (15min) 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
350 Err OD* Position error Too big difference between the position command and the
position feedback during position control
351 Err EP* Encoder phase
error
Rotation command different than the motor rotation
direction
352 Err E.11* Opposite rotation
deceleration
Rotation direction of the speed command different than the
estimated speed causing overload
353 Err E.13 Internal circuit error Problem with an internal circuit, replace the inverter
1. Check if there is no short circuit on the
output of the inverter. (loose wire of motor
cable, motor windings, screws or other loose
parts inside the motor terminal box,…)
Repair the short circuit.
2. Disconnect the motor cable from the inverter and
try again.
If you still have the error with motor cable
disconnected, replace the inverter.
1. Check if there was a high unbalance during
extraction, which can be caused by putting
only half loads in the machine.
Put always a full load in the machine drum.
2. Check if the supply voltage is not too high. Reduce the supply voltage.
3. Check if the fault is persistent If the fault is persistent, contact the manufacturer