Omron 8U0108-E1-01, User Manual

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XtraDrive User Manual Chapter 9 : Inspection, Maintenance, and Troubleshooting
9-16
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A.86: Encoder Overheated
Display and Outputs
Alarm Outputs
Alarm Code Output
ALO1 ALO2 ALO3
ALM Output
OFF OFF OFF OFF
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
During servomotor
operation
When the control
panel is turned ON.
A, B C, D
Cause of the Problem Solution
A
The ambient temperature of the
servomotor is high.
Alter conditions so that the
ambient temperature goes
below 40°C.
B
Servomotor is operating under
overload.
Reduce load.
C Defective circuit board (1PWB). Replace servo amplifier.
D Encoder defective. Replace servo amplifier.
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A.b1, A.b2
A.b1: Reference Speed Input Read Error
A.b2: Reference Torque Input Read Error
The alarm output, status, and remedy for A.b1 are the same as for A.b2.
Display and Outputs
Alarm Outputs
Alarm Code Output
ALO1 ALO2 ALO3
ALM Output
OFF OFF OFF OFF
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
During servomotor
operation
At power ON.
A, B A, B, C
Cause of the Problem Solution
A
Error in reference read-in unit
(A/D Converter, etc.). Reset alarm and restart
operation.
B
Faulty reference read-in unit
(A/D Converter, etc.).
Replace servo amplifier.
C Defective circuit board (1PWB). Replace servo amplifier.