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MELSEC-
A
12 CONTROL AUXILIARY FUNCTIONS
Calculation example
(Conditions)
Movement amount per pulse
No. of pulses per rotation
Unit magnification
: 500 (
m/rev)
: 12000 (pulse/rev)
: 1
(Positioning results)
Command movement amount
Actual movement amount
: 100mm
: 101mm
(Compensation amount)
AL'
=
5
10
3
101
10
3
=
5050
=
101
AP' 12000
101
10
3
12000 240
Movement amount per pulse
No. of pulses per rotation
Unit magnification
: 101 (
m/rev)
: 240 (pulse/rev)
: 1
5) Set the post-compensation "
Pr.2 No. of pulses per rotation (Ap')",
"
Pr.3 Movement amount per rotation (Al')", and " Pr.4 Unit
magnification (Am')" in the parameters, and write them to the D75P2.
The set details are validated at the rising edge (OFF
ON) of the
remote station READY signal [RX(n+7)B].
Setting item
Setting
value
Setting details
Pre-compensation
value
Pr.2
No. of pulses per
rotation
Ap' Set the post-compensation value. Ap
Pr.3
Movement
amount per
rotation
Al' Set the post-compensation value. Al
Pr.4
Unit magnification Am' Set the post-compensation value. Am
* Refer to section "5.2 List of parameters" for setting details.