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MELSEC-Q
11 MANUAL CONTROL
11.4.3 Setting the required parameters for manual pulse generator operation
The "Positioning parameters" must be set to carry out manual pulse generator
operation.
The following table shows the setting items of the required parameters for carrying out
manual pulse generator operation. When only manual pulse generator operation will
be carried out, no parameters other than those shown below need to be set. (Use the
initial values or setting values within a range where no error occurs for trouble-free
operation.)
Setting item Setting requirement
Factory-set initial value
(setting details)
Pr.1
Unit setting
3 (PLS)
Pr.2
No. of pulses per rotation (AP) (Unit: PLS)
20000
Pr.3
Movement amount per rotation (AL) (Unit: PLS)
20000
Pr.4
Unit magnification (AM)
1 (1 times)
Pr.8
Speed limit value (Unit: PLS/s)
200000
Pr.11
Backlash compensation amount (Unit: PLS)
0
Pr.12
Software stroke limit upper limit value (Unit: PLS)
2147483647
Pr.13
Software stroke limit lower limit value (Unit: PLS)
–2147483648
Pr.14
Software stroke limit selection
0 (current feed value)
Pr.15
Software stroke limit valid/invalid setting
0 (valid)
Pr.17
Torque limit setting value (Unit: %)
300
Pr.22
Input signal logic selection
0 (Manual pulse generator
input is negative logic.)
Positioning parameters
Pr.24
Manual pulse generator input selection
0 (4 times multiplication of A
phase/B phase)
: Setting always required.
: Set according to requirements (Leave set to the initial value when not used.)
REMARK
•
Positioning parameter settings work in common for all control using the QD75MH.
When carrying out other control ("major positioning control", "high-level positioning
control", "OPR positioning control"), the respective setting items must also be
matched and set.
•
Parameters are set for each axis. But
Pr.22
Manual pulse generator input logic
(b8),
Pr.24
is set only for axis 1. (The setting for axes 2,3, and 4 is ignored.)
•
Refer to Chapter 5 "Data Used for Positioning Control" for setting details.