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6.5.6
Stop program
The axis stop signal [Y4, Y5, Y6, Y7] or a stop signal from an external source is used to stop the control.
Create a program to turn ON the axis stop signal [Y4, Y5, Y6, Y7] as the stop program.
The process for stopping control is explained below. Each control is stopped in the following cases.
• When each control is completed normally.
• When the drive unit READY signal is turned OFF.
• When a CPU module error occurs
• When the PLC READY signal is turned OFF.
• When an error occurs in the LD75.
• When control is intentionally stopped (Stop signal from CPU module turned ON, stop signal from an external
device, etc.)
The stop process for the above cases is shown below. (Excluding the case when control is completed normally.)
(1) Stop process
(a) OPR control
Stop cause
Drive unit READY signal
Forced stop
OFF
Hardware stroke limit
Fatal stop
upper/lower limit error
(Stop group 1)
occurrence
CPU module error
occurrence
Emergency stop
(Stop group 2)
PLC READY signal OFF
Error in test function
Axis error detection
Relatively safe stop
(Error other than stop
(Stop group 3)
group 1 or 2)
"Stop signal" ON from
external source
Intentional stop
"Axis stop signal" ON
(Stop group 3)
from CPU module
"Stop signal" from GX
Works2
CHAPTER 6 PROGRAM USED FOR POSITIONING CONTROL
Axis operation
M code ON
Stop axis
status ([Md.26])
signal after stop
after stopping
Each axis
No change
Each axis
No change
No change
All axes
Turns OFF
No change
Each axis
No change
Each axis
No change
Stop process
Machine OPR control
Error
Immediate stop
Deceleration stop/sudden stop
Error
(Select with "[Pr.37] Stop group 1 sudden stop
selection".)
Deceleration stop/sudden stop
Error
(Select with "[Pr.38] Stop group 2 sudden stop
selection".)
Error
Deceleration stop/sudden stop
(Select with "[Pr.39] Stop group 3 sudden stop
selection".)
Stopped
(Standby)
6
Fast OPR control
301
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Troubleshooting
