Mitsubishi Electric MELSERVO MR-J4-03A6-RJ, Instruction Manual

Page: 156 / 610

4. HOW TO USE THE POINT TABLE
4 - 29
(d) Automatic repeat positioning operation
By setting the auxiliary function of the point table, the operation pattern of the set point table No. can
be returned to, and the positioning operation can be performed repeatedly.
1) Absolute value command method ([Pr. PT01] = _ _ _ 0)
Setting "8" or "10" to the auxiliary function performs automatic continuous operation or varying-
speed operation until that point table, and after the completion of positioning, performs the
operation again from the operation pattern of the point table No. used at start-up.
Setting "9" or "11" to the auxiliary function performs automatic continuous operation or varying-
speed operation until that point table, and after the completion of positioning, performs the
operation again from the operation pattern of point table No. 1.
a) Automatic repeat positioning operation by absolute value command method
Example 1. Operations when "8" is set to the auxiliary function of point table No. 4
Point table
No.
Position data
[10
STM
μ
m]
Servo motor
speed [r/min]
Acceleration
time constant
[ms]
Deceleration
time constant
[ms]
Dwell [ms]
Auxiliary
function
M code
1 4.00 1500 200 100 150 1 01
2 5.00 3000 100 150 100 1 05
3 5.00 2000 150 200 200 3 10
4 15.00 1000 300 100 150 8 15
Operation sequence
1) Starting with point table No. 2
2) Executing point table No. 3
3) Executing point table No. 4
4) Executing again point table No. 2 used at start-up when "8" is set to the auxiliary function of
point table No. 4
5) Repeating the above execution in the sequence of 2) to 3) to 4) to 2) to 3) to 4)
Servo motor speed
Forward rotation
0 r/min
Reverse rotation
Position address
Point table No. to select
ST1 (Forward rotation start)
ON
OFF
PT0 (Point table No. output 1)
to PT7 (Point table No. output 8)
(Note)
M code output (Note)
Speed
(3000)
Point table No. 2
Point table No. 3
Speed
(2000)
Speed (1000)
Point table No. 4
Point table No. 2
5.00
1)
2)
3)
4)
0 5.00 10.00 15.00
2
Speed
(3000)
Note. PT0 to PT7 and M code are not outputted in automatic continuous operation.
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