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9. TROUBLESHOOTING
Display
Name
Definition
Cause
Action
(Note 2)
Alarm details
AL.20 Encoder error 2
(during runtime)
Communication
error occurred
between encoder
and driver.
1. Encoder cable disconnected.
<Checking method>
Check the connection of the encoder
cable.
Connect the servo motor
encoder connector to the
driver connector (CN2)
correctly.
47
2. Encoder cable fault.
<Checking method>
Check that the encoder cable is
broken or shorted.
Repair or change the cable.
3. The encoder detected high acceleration
rate due to oscillation and other
causes.
<Checking method>
Check that the servo motor does not
vibrate or does not make unusual
noise.
1. Decrease the position
loop gain.
2. Reduce the response
setting of the auto tuning.
8
4. Encoder fault.
Change the servo motor.
5. A communication error occurred due
to external noise.
<Checking method>
1. Check that the encoder cable and
the power cables are wired side by
side.
2. Check that the driver is not
influenced by noise of magnetic
valves, magnetic contactors or
relays.
3. Check the grounding of the driver
and the servo motor.
4. Check that there is no cause of
static electricity around.
5. Check that the shield of the encoder
cable is made correctly.
Ground correctly or take
noise reduction measures.
AL.21 Encoder error 3
(during runtime)
Error occurred in
encoder.
Detection circuit error in encoder.
Change the servo motor.
Содержание LECSB Series
Страница 1: ...PRODUCT NAME AC Servo Motor Driver MODEL Series LECSB Series Doc no JXC OMT0021 B ...
Страница 17: ...7 App 6 Compliance with the European EC directives App 7 App 7 Conformance with UL C UL standard App 10 ...
Страница 255: ...10 1 10 OUTLINE DRAWINGS 10 OUTLINE DRAWINGS 2 10 1 Driver 2 10 2 Connector 4 ...