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. Stability and Compensation
3. Operation
The various symptoms along with the cause and the remedy are described in the following tables.
Installation
SYMPTOM DIAGNOSIS CAUSE REMEDY
Motor runs away with no
connections from controller
to amplifier input.
Adjusting offset causes the
motor to change speed.
1. Amplifier has an
internal offset.
2. Damaged amplifier.
Adjust amplifier offset. Amplifier
offset may also be compensated by
use of the offset configuration on
the controller (see the OF
command).
Replace amplifier.
Motor is enabled even
when MO command is
given
The SH command disables
the motor
1. The amplifier requires
the a different Amplifier
Enable setting on the
Interconnect Module
Refer to Chapter 3 or contact Galil.
Unable to read main or
auxiliary encoder input.
The encoder does not work
when swapped with another
encoder input.
1. Wrong encoder
connections.
2. Encoder is damaged
3. Encoder configuration
incorrect.
Check encoder wiring. For single
ended encoders (CHA and CHB
only) do not make any connections
to the CHA- and CHB- inputs.
Replace encoder
Check CE command
Chapter 9 Troubleshooting • 181 DMC-40x0 User Manual
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