Forced Stop Function - Mitsubishi Electric QD77MS User Manual

13.4.5 Forced stop function

When the forced stop is required to be wired, ensure to wire it in the negative logic using b-
contact.
Provided safety circuit outside the Simple Motion module so that the entire system will operate
safety even when the "[Pr.82] Forced stop valid/invalid selection" is set "1: Invalid". Be sure to
use the forced stop signal (EMI) of the servo amplifier.
Stop cause
"Forced stop input
Forced stop
signal" OFF from
an external device
"Forced stop function" stops all axes of the servo amplifier with the forced stop signal.
(The initial value is set to "0: Valid".)
The forced stop input valid/invalid is selected by "[Pr.82] Forced stop valid/invalid
selection".
The details shown below explain about the "forced stop function".
[1] Control details
[2] Wiring the forced stop
[3] Setting the forced stop
[4] How to check the forced stop
[5] Precautions during control
[1] Control details
When "[Pr.82] Forced stop valid/invalid selection" is set to other than "1: Invalid",
the forced stop signal is sent to all axes after the forced stop input is turned on.
Refer to the servo amplifier instruction manual for the operation of the servo
amplifier after the forced stop signal is sent.
The outline of the forced stop process is shown below.
M code operation
Stop ON
axis signal ([Md.26])
after stop
stopping
No
All axes
Servo OFF
change
DANGER
Axis
OPR control
status
Machine
Fast OPR
OPR
after
control
control
Immediate stop
13 - 39
Chapter 13 Control Sub Functions
Stop process
Major High-level
JOG/
positioning positioning
Inching
control control
operation
Manual control
Manual
pulse
generator
operation