Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 325

Part 6: Review on Replacement of MR-J3-_T_(DIO command/ Serial communication operation) with MR-J4-_A_-RJ
No. Name and function
PA04 Function selection A-1
This parameter is made valid when power is switched off,
then on after setting, or when the controller reset has
been performed.
If this parameter is made valid, the home position is not
lost in the servo-off or forced stop state, and the
operation can be resumed when the servo-on (SON) or
forced stop (EMG) is deactivated.
0 0 0 x:
Servo-on (SON) -off, forced stop (EMG) –off follow-up for
absolute value command in incremental system
0: Disabled
1: Enabled
Normally, when this servo amplifier is used in the
absolute value command method of the incremental
system, placing it in a servo off or forced stop status will
erase the home position.
When "1" is set in this parameter, the home position will
not be erased if the servo amplifier is placed in a servo-
off or forced stop status.
The operation can be resumed when the servo-on
(SON) or forced stop (EMG) is deactivated.
MR-J3-_T_
Initial
No.
value
0000h PT02 Function selection T-1
_ _ _ x:
Follow-up of SON (Servo-on) off/EM2 (Forced stop 2) off
with absolute value command method in incremental
system
0: Disabled (Home position is erased at servo-off or EM2
off.)
1: Enabled (Home position is not erased even if servo-
off, EM2 off, or alarm occurrence which can be
canceled with reset. The operation can be continued.)
_ _ x _:
For manufacturer setting
_ x _ _:
For manufacturer setting
x _ _ _:
Point table writing inhibit
0: Allow
1: Inhibit
PA04 Function selection A-1
_ _ _ x:
For manufacturer setting
_ _ x _:
For manufacturer setting
_ x _ _:
For manufacturer setting
x _ _ _:
Forced stop deceleration function selection
0: Forced stop deceleration function disabled (EM1)
2: Forced stop deceleration function enabled (EM2)
Refer to table 6.1 for details.
Setting
EM2/EM1
value
0 _ _ _ EM1
2 _ _ _ EM2
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MR-J4-_A_-RJ
Name and function
Table 6.1 Deceleration method
Deceleration method
EM2 or EM1 is off Alarm occurred
MBR (Electromagnetic MBR (Electromagnetic
brake interlock) turns off brake interlock) turns off
without the forced stop without the forced stop
deceleration. deceleration.
MBR (Electromagnetic MBR (Electromagnetic
brake interlock) turns off brake interlock) turns off
after the forced stop after the forced stop
deceleration. deceleration.
Initial
value
0h
0h
0h
0h
0h
0h
0h
2h