Emotron AB 01-3990-11r3 Troubleshooting and maintenance 77
Troubleshooting and maintenance
Error display and remedying errors
Errors which cannot be recovered manually
* The failure contact does not function
Display Error Cause Remedy
Program problem
External noise inter-
ference
Connect a parallel RC burst absorber
across the magnetizing coil of the mag-
netic contactor that causes interference
EEPROM problem Faulty EEPROM Replace EEPROM
*
Voltage too high
during stop
Detection circuit mal-
function
Send the VSD back to be repaired
*
Voltage too low
during stop
1. Power voltage too
low
2. Restraining resis-
tor or fuse burnt out
3. Detection circuit
malfunction
1. Check if the power voltage was correct
or not
2. Replace the restraining resistor or the
fuse
3. Send the VSD back to be repaired
*
The VSD is over-
heated during
stop
1. Detection circuit
malfunctions
2. Ambient tempera-
ture too high or bad
ventilation
1. Send the VSD back to be repaired
2. Improve ventilation conditions
Current Sensor
detecting error
Current sensor error
or circuit malfunction
Send the VSD back to be repaired
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General