A.86, Display and outputs, Status and remedy for alarm – Yaskawa Sigma II Series Servo System User Manual

Page 412

Sigma II User’s Manual

Chapter 9: Inspection, Maintenance, and Troubleshooting

9 - 24

A.86

A.86: Encoder Overheated

Display and Outputs

Note:

OFF:

Output transistor is OFF (alarm state).

Status and Remedy for Alarm

Alarm Outputs

Alarm Code Output

ALM Output

ALO1

ALO2

ALO3

OFF

Cause of the Problem

Solution

The ambient temperature of the

servomotor is high.

Alter conditions so that the ambi-

ent temperature goes below 40°C

Servomotor is operating under

overload.

Reduce load.

Circuit board (1PWB) defective.

Replace servo amplifier.

Encoder defective.

Replace servo amplifier.

During servomotor operation.

When the control panel

is turned ON.

A, B

C, D