Fault causes and solutions of Yaskawa servo alarm A840/A84

Create Date: 2024-8-30 12:03:23|Source: YASKAWA/Yaskawa

1. Yaskawa servo alarm A840 (A84) is: encoder data error alarm.

A.84 Common causes of alarm are:

1. Excessive mechanical vibration

2. High-frequency noise in the application environment

3. Servo motor inlet water inlet oil, dust, etc

4. The driver is faulty

2. Yaskawa servo alarm A840 (A84) corresponding solutions:

1. Detect the mechanical connection part and eliminate mechanical vibration

1. Find the source of high-frequency interference and add the corresponding high-frequency absorption device;

2. The servo motor is directly replaced with a new motor or repaired if the water enters the oil and the dust is entered;

5. If the motor alarm cannot be eliminated after replacing the motor, it is a driver failure, and the maintenance center can be sent for detection and maintenance
Fault causes and solutions of Yaskawa servo alarm A840/A84

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