Emotron AB 01-3990-11r3 Troubleshooting and maintenance 79
Errors which can be recovered manually but not
automatically
Over speed
during opera-
tion
1. Motor load too great or VSD
capacity too small
2. Motor parameter error
(vector mode)
3. The gain is too great during vec-
tor mode operation
4. The current detect circuit is
faulty
1. Increase acceleration /
Deceleration time (3-02/3-03)
2. Input correct motor Parame-
ter
3. Change stator Resistance
gain
and Rotator resistance gain
(14-0/14-1). Recommended
decrease 50~100, until 0
4. Send back to Emotron
Display Error Cause Remedy
Over-current dur-
ing stop
1. Detection circuit malfunc-
tion
2. Bad connection for CT signal
cable
1. Check the noise between
power line and motor line
2.Send the VSD back to be
repaired
Motor overload
1. Heavy load
2. Inappropriate settings of 0-
02, 9-08~11
1. Increase the motor capacity
2. Set 0-02, 9-08~11 properly
VSD overload Heavy load Increase the VSD capacity
Over torque
1. Heavy load
2. Insufficient settings of 9-14,
9-15
1. Increase the VSD capacity
2. Set 9-14, 9-15 properly
Voltage too low
during operation
1. Power voltage too low
2. Power voltage varies widely
1. Improve power quality or
increase the value of 2-01
2. Set a longer acceleration time
3. Increase VSD capacitor
4. Add a reactor at the power
input side
Heatsink tem-
perature too
high during oper-
ation
1. Heavy load
2. Ambient temperature too
high or bad ventilation
1. Check if there are any prob-
lems with the load
2. Increase VSD capacity
3. Improve ventilation conditions
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General