Installation Manual

Eaton Electrical Inc.
1000 Cherrington Parkway
Moon Township, PA 15108-4312
USA
tel: [phone]
www.EatonElectrical.com
© 2006 Eaton Corporation
All Rights Reserved
Publication No. MN04001003E/CPG
February 2006
Common Problems and Solutions, continued
Fault
Name Fault Description Corrective Action
oL2 Motor overload 1. Check settings for parameters 6-03 to 6-05.
2. Reduce the motor load.
3. Adjust the over-torque detection setting to an appropriate setting.
ocA Over-current during acceleration:
• Short circuit at motor output
• Torque boost too high
• Acceleration time too short
• Drive’s output capacity too small
1. Make sure the insulation is adequate at the output line.
2. Decrease the torque boost setting in parameter 7-02.
3. Increase the acceleration time.
4. Replace the drive with one that has a higher output capacity (next level hp).
ocd Over-current during deceleration:
• Short circuit at motor output
• Deceleration time too short
• Drive’s output capacity too small
1. Make sure the insulation is adequate at the output line.
2. Increase the deceleration time.
3. Replace the drive with one that has a higher output capacity (next level hp).
ocn Over-current during steady-state
operation:
• Short circuit at motor output
• Sudden increase in motor loading
• Drive’s output capacity too small
1. Make sure the insulation is adequate at the output line.
2. Check for possible motor stall.
3. Replace the drive with one that has a higher output capacity (next level hp).
cF1 Internal memory IC cannot be
programmed
1. Switch off power supply.
2. Make sure the input voltage falls within the drive’s input voltage rating
range.
3. Switch on the drive.
cF2 Internal memory IC cannot be read 1. Check the connections between the main control board and the power
board.
2. Reset drive to factory defaults.
cF3 Drive’s internal circuitry abnormal 1. Switch off power supply.
2. Make sure the input voltage falls within the drive’s input voltage rating
range.
3. Switch on the drive.
HPF Hardware protection failure Consult Eaton.
codE Software protection failure Consult Eaton.
cFA Auto acceleration/deceleration
failure
Do not use the auto accel./decel. function.
CE1 Communication error 1. Check the connection between the drive and computer for loose wires.
2. Make sure the communication protocol is properly set.
bb External base block
(When the external input terminal
(BB) is active, the drive output will be
turned off.)
Disable the connection between external input terminal (BB) and the drive. The
drive will begin to run again.
oL Drive detects excessive drive output
current
1. Check whether the motor is overloaded.
2. Reduce torque compensation setting set in parameter 7-02.
3. Increase the drive’s output capacity.
Note: The drive can withstand up to 150% of the rated current for a maximum of
60 seconds.
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