A.74, Display and outputs, Status and remedy for alarm – Yaskawa Sigma II Series Servo System User Manual

Page 405

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Sigma II User’s Manual

Chapter 9: Inspection, Maintenance, and Troubleshooting

9 - 17

A.74

A.74: Overload of Surge Current Limit Resistor

Display and Outputs

Note:

OFF:

Output transistor is OFF (alarm state).

ON:

Output transistor is ON.

Status and Remedy for Alarm

Alarm Outputs

Alarm Code Output

ALM Output

ALO1

ALO2

ALO3

ON

ON

ON

OFF

Cause of the Problem

Solution

A

Frequently turning the main circuit

power ON/OFF.

Do not repeatedly turn ON/OFF

the main circuit power.

B

Defective circuit board (1PWB).

Replace servo amplifier.

When main circuit power

is turned ON or OFF.

At power ON.

A

B

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