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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 manua l pulse generator operation.
The following table shows the setting items of the required parameters for carrying out
manual pulse generator operation. When onl y manual pulse generator operation will
be carried out, no parameters other than those sh own below need to be set. (Use the
initial values or setting values within a rang e 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 accord ing to requirements (Leave set to the init ial value when not used.)
REMARK
Parameter settings work in common for all c ontrol using the QD75. When carrying
out other control ("major positioning c ontrol", "high-level positioning control ", "OPR
positioning control"), the respective setti ng 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 Contr ol" for setting details.