Mitsubishi Electric MR-JE-C, Instruction Manual

Page: 267 / 312

12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE
12 - 52
No. Start-up sequence Fault Investigation Possible cause Reference
5 Gain adjustment Rotation ripples (speed
fluctuations) are large
at low speed. Make gain adjustment in the
following procedure.
1. Increase the auto tuning
response level.
2. Repeat acceleration and
deceleration several times to
complete auto tuning.
Gain adjustment fault MR-JE-
_C
Chapter 6
Large load inertia
moment causes the
servo motor shaft to
oscillate side to side. If the servo motor can be run
safely, repeat acceleration and
deceleration three times or more to
complete auto tuning. Gain adjustment fault MR-JE-
_C
Chapter 6
Note. Refer to "MELSERVO-JE Servo Amplifier Instruction Manual (Troubleshooting)" for details of alarms and warnings.
12.5.2 Automatic operation mode
(1) Automatic operation mode
(a) Command method
Select the point table that has been set in advance with an input signal to start operation with ST1
(Forward rotation start) or ST2 (Reverse rotation start). [Pr. PT01] and the auxiliary function of the
point tables enable the absolute value command method or incremental value command method to
be selected.
1) Absolute value command method
As position data, set the target address to be reached.
Setting range: -999999 to 999999 [×10 STM μm] (STM = Feed length multiplication [Pr. PT03])
-999999 to 999999 [×10 (STM-4) inch] (STM = Feed length multiplication [Pr. PT03])
-999999 to 999999 [pulse]
Setting range of the position data
[×10
STM
μ
m] / [×10
(STM-4)
inch] / [pulse]
-999999 999999
2) Incremental value command method
As position data, set the travel distance from the current address to the target address.
Setting range: 0 to 999999 [×10 STM μm] (STM = Feed length multiplication [Pr. PT03])
0 to 999999 [×10 (STM-4) inch] (STM = Feed length multiplication [Pr. PT03])
0 to 999999 [pulse]
Current address Target address
Position data = |Target address - Current address|