5-6 Troubleshooting
MN715J
Table 5-2 Troubleshooting
INDICATION
POSSIBLE
CAUSE
CORRECTIVE ACTION
No Display
No input voltage.
Check input power for proper voltage.
Adjust display contrast.
Bus
Overvoltage
Excessive
dynamic braking
power.
Check dynamic brake watt and resistance parameter values.
Increase the DECEL time.
Add external dynamic braking assemblies.
DECEL Rate
value set too low.
Lengthen DECEL time.
Add external dynamic braking resistors or module.
Overhauling
Motor load
Correct problem with motor load.
Add external dynamic braking resistors or module.
Dynamic brake
wiring problem.
Check dynamic brake hardware wiring.
Input voltage too
high.
Verify proper AC line voltage.
Use step down transformer if needed.
Use line reactor to minimize spikes.
Bus
Undervoltage
Input voltage too
low.
Disconnect dynamic brake hardware and repeat operation.
Verify proper AC line voltage.
Use step up transformer if needed.
Check power line disturbances (sags caused by start up of other
equipment).
Monitor power line fluctuations with date and time imprint to
isolate power problem.
Hardware
Protect
Output current
(motor current)
leakage to
ground.
Disconnect wiring between control and motor. Turn power OFF
then ON (cycle power).
Retry test.
If Ground Fault is cleared, reconnect motor leads and retry the
test. Repair motor if internally shorted.
Replace motor lead wire with low capacitance cable.
If Ground Fault remains, contact Baldor.
Heatsink
Temp
Motor
Overloaded.
Correct motor loading.
Verify proper sizing of control and motor.
Temp
Ambient
temperature too
high.
Relocate control to cooler operating area.
Add cooling fans or air conditioner to control cabinet.
Built-in fans are
ineffective or
inoperative.
Verify fan operation.
Remove debris from fan and heatsink surfaces.
Replace fan or check fan wiring.
Invalid Base
ID
Control does not
recognize hp and
Voltage
configuration.
Turn power OFF then ON (cycle power).
If fault remains call Baldor.
New Base ID
Replaced Control
or circuit board.
Restore parameters to factory settings.
Reset control.
FE EEPROM
Error
Non-volatile
memory on the
keypad has failed.
Press “RESET” key on keypad.
Restore factory settings.
Reset power.
If fault remains, contact Baldor.
Precharge
FLT
DC Bus charging
error detected.
Turn power OFF then ON (cycle power).
If fault remains, contact Baldor.
Summary of Contents for ID15J1F50-ER
Page 1: ...Series 15J Inverter Control 7 04 MN715J Installation and Operating Manual...
Page 5: ...iv Table of Contents MN715J...
Page 11: ...2 4 General Information MN715J...
Page 59: ...4 22 Programming and Operation MN715J...
Page 75: ...6 6 Specifications and Product Data MN715J...
Page 79: ...A 4 Dynamic Brake Hardware MN715J...
Page 86: ...Appendix C Remote Keypad Mounting Template MN715J Remote Keypad Mounting Template C 1...