[Al. 016_Encoder Initial Communication Error 1] - Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual

[AL. 016_Encoder initial communication error 1]

• An error has occurred in the communication between an encoder and servo amplifier.
[AL. 016.1_Encoder initial communication - Receive data error 1]
Cause
1.
There is an error in the encoder cable.
2.
When using an A/B/Z-phase differential output
linear encoder on the servo motor side, the
servo amplifier is not compatible with the A/B/
Z-phase differential output linear encoder.
3.
When using an A/B/Z-phase differential output
linear encoder on the servo motor side, the A/
B/Z-phase differential output linear encoder is
connected incorrectly.
4.
The servo amplifier is malfunctioning.
5.
The encoder is malfunctioning.
6.
There is an abnormality in the surrounding
environment.
[AL. 016.2_Encoder initial communication - Receive data error 2]
Page 18 [AL. 016.1_Encoder initial communication - Receive data error 1]
[AL. 016.3_Encoder initial communication - Receive data error 3]
Cause
1.
Axis not used is not set as disabled-axis.
2.
The encoder cable is disconnected.
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.
There is an error in the encoder cable.
5.
When using an A/B/Z-phase differential output
linear encoder on the servo motor side, the
connection with the linear encoder is incorrect.
6.
The voltage of the control circuit power supply
has become unstable.
7.
The servo amplifier is malfunctioning.
8.
The encoder is malfunctioning.
9.
There is an abnormality in the surrounding
environment.
1 SERVO AMPLIFIER TROUBLESHOOTING
18
1.3 Handling methods for alarms/warnings
Check/action method
Check if the encoder cable is disconnected, shorted, or incorrectly wired.
If the encoder cable is malfunctioning, replace or repair the cable.
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 servo amplifier is compatible with the A/B/Z-phase differential
output linear encoder.
Refer to "Corresponding linear encoder list" in the following manual.
MR-J5 Partner's Encoder User's Manual
Check if the wiring of the A/B/Z-phase differential output linear encoder is
correct. Check that the encoder is wired to PSEL.
Refer to "A/B/Z-phase differential output linear encode" in the following
manual.
MR-J5 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 is shorted.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
Check/action method
Set the axis not used to disabled with disabling control axis switch (SW3-2/
SW3-3/SW3-4).
Check if the encoder cable is connected correctly.
Check the setting value of the servo parameter.
Check if the encoder cable is disconnected or shorted. If the encoder cable is
malfunctioning, replace or repair the cable.
Check if the wiring of the A/B/Z-phase differential output linear encoder is
correct. Check that the encoder is wired to PSEL.
Refer to "A/B/Z-phase differential output linear encode" in the following
manual.
MR-J5 Partner's Encoder User's Manual
Check the voltage of the control circuit power supply.
When an instantaneous power failure is occurring in the control circuit power
supply, review the power supply environment.
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 is shorted.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
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