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Chapter 13  Control Sub Functions 
 
13.4.5 Forced stop function 
 
DANGER
 
  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. 
 
This function stops all axes of the servo amplifier with the forced stop signal. (The 
initial value is "0: Valid (External input signal)".) 
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 the "[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 signal 
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. 
 
Stop cause 
Stop 
axis 
M code 
ON 
signal 
after stop 
Axis 
operation 
status 
([Md.26]) 
after 
stopping 
Stop process 
HPR control 
Major 
positioning 
control 
High-level 
positioning 
control 
Manual control 
Machine 
HPR 
control 
Fast HPR 
control 
JOG/ 
Inching 
operation 
Manual 
pulse 
generator 
operation 
Forced stop 
"Forced stop input 
signal" OFF from 
an external device 
All axes 
No 
change 
Servo OFF 
Immediate stop