[Al. 020_Encoder Normal Communication Error 1] - Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual

[AL. 020_Encoder normal communication error 1]

• An error has occurred in the communication between an encoder and servo amplifier.
[AL. 020.1_Encoder normal communication - Receive data error 1]
Cause
1.
There is an error in the encoder cable.
2.
The external conductor of the encoder cable is
not connected to the ground plate of the
connector.
3.
The servo parameter setting of communication
method is incorrect.
[A]: [Pr. PC22.3 Encoder cable communication method selection]
[G] [WG]: [Pr. PC04.3 Encoder cable communication method
selection]
4.
The servo amplifier is malfunctioning.
5.
The encoder is malfunctioning.
6.
There is an abnormality in the surrounding
environment.
[AL. 020.2_Encoder normal communication - Receive data error 2]
Page 26 [AL. 020.1_Encoder normal communication - Receive data error 1]
[AL. 020.3_Encoder normal communication - Receive data error 3]
Page 26 [AL. 020.1_Encoder normal communication - Receive data error 1]
[AL. 020.5_Encoder normal communication - Transmission data error 1]
Cause
1.
When an A/B/Z-phase differential output linear
encoder is used, the wiring of the linear
encoder has an error.
2.
There is an error in the encoder cable.
3.
The external conductor of the encoder cable is
not connected to the ground plate of the
connector.
4.
When an A/B/Z-phase differential output linear
encoder is used, the servo parameter setting
is incorrect.
5.
The servo amplifier is malfunctioning.
6.
The encoder is malfunctioning.
7.
There is an abnormality in the surrounding
environment.
1 SERVO AMPLIFIER TROUBLESHOOTING
26
1.3 Handling methods for alarms/warnings
Check/action method
Check if the encoder cable is disconnected or shorted.
If there is a malfunction, repair or replace the cable.
When an A/B/Z-phase differential output linear encoder is used, check if the
linear encoder is wired correctly.
Refer to "A/B/Z-phase differential output linear encode" in the following
manual.
MR-J5 Partner's Encoder User's Manual
Check if the external conductor of the encoder cable is connected to the
ground plate of the connector.
Refer to "Ground plate connection" in the following manual.
Rotary Servo Motor User's Manual (HK series)
Refer to "Parameter detail list" in the following manual.
MR-J5-A User's Manual (Parameters)
MR-J5-G/MR-J5W-G User's Manual (Parameters)
Replace the servo amplifier.
Replace the servo motor.
Check the noise, ambient temperature, and others, and implement appropriate
countermeasures for the cause.
If there is noise, take countermeasures to reduce the noise.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
Check/action method
Check if the A/B-phase pulse signals (PA, PAR, PB, and PBR) of the encoder
cable are disconnected or shorted.
Refer to "A/B/Z-phase differential output linear encode" in the following
manual.
MR-J5 Partner's Encoder User's Manual
Page 26 [AL. 020.1_Encoder normal communication - Receive data error
1]
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]