[Al. 042_Servo Control Error] - Mitsubishi Electric MR-J5-G Series User Manual

[AL. 042_Servo control error]

• A servo control error occurred. (When a linear servo motor or a direct drive motor is used or in a fully closed loop control)
[AL. 042.1_Servo control error by position deviation]
Cause
1.
[Pr. PA17 Servo motor series setting] and [Pr.
PA18 Servo motor type setting] were not set
based on the servo motor to be used.
2.
The settings of the encoder resolution differ
from the actual value.
3.
The mounting direction of the encoder is
incorrect.
4.
The connection of the servo motor is incorrect.
5.
The initial magnetic pole detection was not
executed.
6.
The setting value of the position deviation
error detection level is too low.
[AL. 042.2_Servo control error by speed deviation]
Cause
1.
[Pr. PA17 Servo motor series setting] and [Pr.
PA18 Servo motor type setting] were not set
based on the servo motor to be used.
2.
The settings of the encoder resolution differ
from the actual value.
3.
The mounting direction of the encoder is
incorrect.
4.
The connection of the servo motor is incorrect.
5.
The initial magnetic pole detection was not
executed.
6.
The setting value of the speed deviation error
detection level is too low.
1 SERVO AMPLIFIER TROUBLESHOOTING
58
1.3 Handling methods for alarms/warnings
Check/action method
Check if [Pr. PA17] and [Pr. PA18] have been set correctly.
Check the settings 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.
If the mounting direction is incorrect, mount the encoder correctly.
Change the setting of "Encoder pulse count polarity selection" as required.
[A]: [Pr. PC45.0 Encoder pulse count polarity selection]
[G] [WG]: [Pr. PC27.0 Encoder pulse count polarity selection]
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)
Execute the magnetic pole detection, then check the repeatability.
Refer to "Magnetic pole detection" in the following manual.
MR-J5 User's Manual (Hardware)
Check the value of the droop pulses.
If the deviation is too large, review the operation status. Review the setting of
[Pr. PL05 Position deviation error detection level] as required.
Check/action method
Check if [Pr. PA17] and [Pr. PA18] have been set correctly.
Check the settings 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]
[G] [WG]: [Pr. PC27.0 Encoder pulse count polarity selection]
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)
Execute the magnetic pole detection, then check the repeatability.
Refer to "Magnetic pole detection" in the following manual.
MR-J5 User's Manual (Hardware)
Calculate the deviation between the speed command and actual speed. If the
deviation is too large, review the operation status. Review the setting of [Pr.
PL06 Speed deviation error detection level] as required.
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]