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MELSEC-Q
11 MANUAL CONTROL
11.4.3 Setting the required parameters for manual pulse generator operation
The "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 (pulse)
Pr.2
No. of pulses per rotation (Ap) (Unit: pulse) 20000
Pr.3
Movement amount per rotation (Al) (Unit: pulse) 20000
Pr.4
Unit magnification (Am) 1 (1-fold)
Pr.5
Pulse output mode 1 (CW/CCW mode)
Pr.6
Rotation direction setting
0 (current value increases by
forward run pulse output)
Pr.11
Backlash compensation amount (Unit: pulse) 0
Pr.12
Software stroke limit upper limit value (Unit: pulse) 2147483647
Pr.13
Software stroke limit lower limit value (Unit: pulse) –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.)
Pr.23
Output signal logic selection
0 (Pulse output to drive unit is
negative logic.)
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
•
Parameter settings work in common for all control using the QD75. 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.