[Al. 016_Encoder Initial Communication Error 1] - Mitsubishi Electric MR-JET- G Series User Manual

[AL. 016_Encoder initial communication error 1]

• There is a communication error between the encoder and servo amplifier.
[AL. 016.1_Encoder initial communication - Receive data error 1]
Cause
1.
There is a problem with the encoder cable.
2.
If an A/B/Z-phase differential output type
encoder is being used on the servo motor
side, the servo amplifier is not compatible with
the encoder.
3.
If an A/B/Z-phase differential output type
encoder is being used on the servo motor
side, the connection with the encoder is
incorrect.
4.
The servo amplifier has malfunctioned.
5.
The encoder has malfunctioned.
6.
There is a problem with the surrounding
environment.
[AL. 016.2_Encoder initial communication - Receive data error 2]
Page 19 [AL. 016.1_Encoder initial communication - Receive data error 1]
[AL. 016.3_Encoder initial communication - Receive data error 3]
Cause
1.
The encoder cable has been disconnected.
2.
The servo parameter settings for the
communication method are incorrect.
3.
There is a problem with the encoder cable.
4.
The power supply voltage has become
unstable.
5.
If an A/B/Z-phase differential output type
encoder is being used on the servo motor
side, the connection with the encoder is
incorrect.
6.
The servo amplifier has malfunctioned.
7.
The encoder has malfunctioned.
8.
There is a problem with the surrounding
environment.
[AL. 016.5_Encoder initial communication - Transmission data error 1]
Page 19 [AL. 016.1_Encoder initial communication - Receive data error 1]
Check/action method
Check if the encoder cable has been disconnected, incorrectly wired, or has
shorted.
If there is a problem with the encoder cable, replace or repair the cable.
Check if the servo amplifier is compatible with the A/B/Z-phase differential
output type encoder.
Refer to "Compatible linear encoder list" in the following manual.
MR-JET Partner's Encoder User's Manual
Check if the wiring of the A/B/Z-phase differential output type encoder is
correct. Check if the encoder is wired to PSEL.
Refer to "A/B/Z-phase differential output type encoder" in the following manual.
MR-JET Partner's Encoder User's Manual
Replace the servo amplifier.
Replace the servo motor.
Check the power supply for noise. If there is noise, take countermeasures to
reduce the noise.
Check if the connector has shorted.
Refer to "Noise reduction techniques" in the following manual.
MR-JET User's Manual (Hardware)
Check/action method
Check if the encoder cable is connected correctly.
Set the servo parameter correctly according to the encoder cable
communication method (two-wire type/four-wire type).
[JET-G]: [Pr. PC04.3 Encoder cable communication method selection]
Check if the encoder cable has been disconnected or has shorted. If there is a
problem with the encoder cable, replace or repair the cable.
Check the power supply voltage.
If an instantaneous power failure is occurring in the power supply, review the
power supply environment.
Check if the wiring of the A/B/Z-phase differential output type encoder is
correct. Check if the encoder is wired to PSEL.
Refer to "A/B/Z-phase differential output type encoder" in the following manual.
MR-JET Partner's Encoder User's Manual
Replace the servo amplifier.
Replace the servo motor.
Check the power supply for noise. If there is noise, take countermeasures to
reduce the noise.
Check if the connector has shorted.
Refer to "Noise reduction techniques" in the following manual.
MR-JET User's Manual (Hardware)
1 SERVO AMPLIFIER TROUBLESHOOTING
1.3 Handling methods for alarms/warnings
1
Model
[JET-G]
Model
[JET-G]
19