Troubleshooting And Maintenance - Emotron VSA 23 Manual Del Usuario

Troubleshooting and maintenance

Error display and correcting errors
1. Un-resetable/un correctable Errors
Table 24
Display
EPR
EEPROM problem Faulty EEPROM
@
Over voltage dur-
OV
ing stop
@
Under voltage
LV
during stop
The VSD is over-
@
heated during
OH
stop
Current trans-
CTR
ducer detection
error
"@" the Failure contact does not function.
Emotron AB 01-3991-11r2
Error
Detection circuit mal-
function
1. Power voltage too
low
2. Restraining resistor
or fuse burnt out.
3. Detection circuit
malfunctions
1. Thermal Detection
circuit malfunction
2. Ambient tempera-
ture too high or bad
ventilation
Current transducer or
circuit malfunction.
Cause
Replace EEPROM
Repair or replace unit
1. Check if the power voltage is correct or
not
2. Replace the restraining resistor or the
fuse
3. repair or replace unit
1. Repair or replace unit
2. Improve ventilation conditions or relo-
cate VSD
Repair or replace unit
Troubleshooting and maintenance
Corrective Action
59