Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual page 46

[AL. 042.3_Servo control error by torque/thrust deviation]
Cause
1.
The setting of the encoder resolution differs
from the actual value.
2.
The mounting direction of the encoder is
incorrect.
3.
The connection of the servo motor is incorrect.
4.
The initial magnetic pole detection was not
executed.
5.
The setting value in the torque/thrust deviation
error detection level is low.
1 SERVO AMPLIFIER TROUBLESHOOTING
44
1.3 Handling methods for alarms/warnings
Check/action method
Check the setting of [Pr. PL02 Linear encoder resolution setting - Numerator]
and [Pr. PL03 Linear encoder resolution setting - Denominator].
Refer to "Linear encoder resolution setting" in the following manual.
MR-J5 User's Manual (Hardware)
Check the polarities of the linear encoder and the linear servo motor.
Change the setting of "Encoder pulse count polarity selection" as required.
[A]: [Pr. PC45.0 Encoder pulse count polarity selection]
MR-J5-A User's Manual (Parameters)
[G] [WG]: [Pr. PC27.0 Encoder pulse count polarity selection]
MR-J5-G/MR-J5W-G User's Manual (Parameters)
Refer to "Setting of linear encoder direction and linear servo motor direction" in
the following manual.
MR-J5 User's Manual (Hardware)
Check the wiring.
Refer to "Signals and wiring" in the following manual.
MR-J5 User's Manual (Hardware)
Check the repeatability.
Refer to "Magnetic pole detection" in the following manual.
MR-J5 User's Manual (Hardware)
Calculate the deviation between the current command and torque/thrust. If the
deviation is large, review the power-supply environment or the operation
status. Review the setting of [Pr. PL07 Torque deviation error detection level],
as required.
Model
[A]
[G]
[WG]