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DMC-3425 Chapter 9 Troubleshooting• 155
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.
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.