130 • Chapter 9 Troubleshooting DMC-1500
Chapter 9 Troubleshooting
Overview
The following discussion may help you get your system to work.
Potential problems have been divided into groups as follows:
1. Installation
2. Communication
3. Stability and Compensation
4. Operation
The various symptoms along with the cause and the remedy are described in the following tables.
Installation
Symptom Cause Remedy
Motor runs away when connected to amplifier with
no additional inputs.
Amplifier offset too
large.
Adjust amplifier offset
Same as above, but offset adjustment does not stop
the motor.
Damaged amplifier. Replace amplifier.
Controller does not read changes in encoder position. Wrong encoder
connections.
Check encoder wiring.
Same as above Bad encoder Check the encoder signals.
Replace encoder if necessary.
Same as above Bad controller Connect the encoder to
different axis input. If it works,
controller failure. Repair or
replace.
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