Inching Operation Execution Procedure - Mitsubishi Electric QD77MS User Manual

11.3.2 Inching operation execution procedure

Preparation
STEP 1
Refer to Chapter 5
and Section 11.3.3.
STEP 2
Refer to Section
11.3.4.
STEP 3
Refer to Chapter 6.
STEP 4
Inching operation
start
STEP 5
Monitoring of the
inching operation
STEP 6
Inching operation
stop
The inching operation is carried out by the following procedure.
Set the parameters.
( Pr.1 to
Create a sequence program in which the
" Cd.16 Inching movement amount" is set.
(Control data setting)
Create a sequence program in which the "JOG
start signal" is turned ON by an inching
operation start command.
Write the sequence program created in STEP1
and STEP2 to the PLC CPU.
Turn ON the JOG start signal of the axis to be
started.
Monitor the inching operation status.
Turn OFF the JOG start signal that is ON.
End of control
REMARK
 Mechanical elements such as limit switches are considered as already installed.
 Parameter settings work in common for all control using the Simple Motion module.
One of the following two methods can be used.
<Method 1>
Pr.31 )
Directly set (write) the parameters in the Simple Motion
module using GX Works2.
<Method 2>
Set (write) the parameters from the PLC CPU to the Simple
Motion module using the sequence program.
Turn ON the JOG start signal.
Forward run JOG
start signal
Reverse run JOG
start signal
Monitor using GX Works2.
End the inching operation after moving a workpiece
by an inching movement amount with the sequence
program created in STEP 2.
11 - 18
Chapter 11 Manual Control
QD77MS2/QD77MS4 QD77MS16
Cd.181 Forward run
Y8, YA, YC, YE
JOG start
Cd.182 Reverse run
Y9, YB, YD, YF
JOG start