CV7300 Instruction Manual - TECO-Westinghouse Motor Company
CV7300 Instruction Manual - TECO-Westinghouse Motor Company
CV7300 Instruction Manual - TECO-Westinghouse Motor Company
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
@<br />
@<br />
@<br />
Chapter 5 Troubleshooting and maintenance<br />
Chapter 5 Troubleshooting and maintenance<br />
5.1. Error display and remedy<br />
5.1.1. Errors which can not be recovered manually<br />
Display Error Cause Remedy<br />
CPF<br />
EPR<br />
-OV-<br />
-LV-<br />
-OH-<br />
CTER<br />
Program<br />
problem<br />
EEPROM<br />
problem<br />
Voltage too high<br />
during stop<br />
Voltage too low<br />
during stop<br />
The inverter is<br />
overheated<br />
during stop<br />
Current Sensor<br />
detecting error<br />
External noise interference<br />
Connect a parallel RC burst<br />
absorber across the magnetizing<br />
coil of the magnetic contactor<br />
that causes interference<br />
Faulty EEPROM Replace EEPROM<br />
Detection circuit malfunction<br />
1. Power voltage too low<br />
2. Restraining resistor or fuse<br />
burnt out.<br />
3. Detection circuit<br />
malfunctions<br />
1. Detection circuit<br />
malfunctions<br />
2. Ambient temperature too high<br />
or bad ventilation<br />
Current sensor error or circuit<br />
malfunctions<br />
※ Note: 〝@ 〞the Failure contact does not function.<br />
5-1<br />
Send the inverter back for<br />
repairing<br />
1. Check if the power voltage<br />
was correct or not<br />
2. Replace the restraining<br />
resistor or the fuse<br />
3. Send the inverter back for<br />
repairing<br />
1. Send the inverter back for<br />
repairing<br />
2. Improve ventilation<br />
conditions<br />
Send the inverter back<br />
for repairing
Change language