Mitsubishi Electric MELSERVO-J2 Series Instruction Manual page 77

4. OPERATION
(f) Home position return
Perform home position return as required. Refer to Section 4.4 for home position return types. A
parameter setting example for dog type home position return is given here.
Parameter
No.8
No.9
No.10
No.11
No.42
No.43
After setting the above parameters, switch power off once. Then switch power on again to make the
set parameter values valid.
Set the input signals as listed below and switch on the forward rotation start (ST1) to execute
home position return.
Automatic/manual selection
Point table No. selection 1
Point table No. selection 2
Servo-on
(g) Automatic operation
Set the input signals as listed below and switch on the forward rotation start (ST1) to execute
automatic operation in accordance with point table No.1.
Automatic/manual selection
Servo-on
Forward rotation stroke end
Reverse rotation stroke end
Point table No. selection 1
Point table No. selection 2
(h) Stop
In any of the following statuses, the servo amplifier interrupts and stops the operation of the servo
motor.
When the servo motor used is equipped with an electromagnetic brake, refer to Section 3.9 (3).
Note that forward rotation stroke end (LSP), reverse rotation stroke end (LSN) off has the same
stopping pattern as described below.
1) Servo-on (SON) OFF
The base circuit is shut off and the servo motor coasts.
2) Alarm occurrence
When an alarm occurs, the base circuit is shut off and the dynamic brake is operated to bring the
servo motor to a sudden stop.
3) Forced stop (EMG) OFF
The base circuit is shut off and the dynamic brake is operated to bring the servo motor to a
sudden stop. Servo forced warning (A.E6) occurs.
4) Forward rotation stroke end (LSP), reverse rotation stroke end (LSN) OFF
The droop pulse value is erased and the servo motor is stopped and servo-locked. It can be run in
the opposite direction.
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Name
Home position return type
Home position return speed
Creep speed
Home position shift distance
Home position return position data
Moving distance after proximity dog
Device Name
Device Name
search engine
Setting
000
1000 Motion is made up to proximity dog at 1000r/min.
10 Motion is made up to home position at 10r/min.
0 No home position shift
Set the current position at home position return
completion.
Not used in dog type home position return.
Symbol ON/OFF
MD0 ON
DI0 OFF Home position return mode is selected.
DI1 OFF
SON ON Servo is switched on.
Symbol ON/OFF
MD0 ON Automatic operation mode is selected.
SON ON Servo is switched on.
LSP ON Forward rotation side limit switch is turned on.
LSN ON Reverse rotation side limit switch is turned on.
DI0 ON
Point table No.1 is selected.
DI1 OFF
4 - 4
Description
Dog type home position return is selected.
Home position return is started in address
incremented direction.
Proximity dog (DOG) is valid when DOG-
SG are opened.
Description
Description