Forced Stop Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

Forced stop function

WARNING
• When the forced stop is required to be wired, ensure to wire it in the negative logic using b-contact.
• Provide safety circuit outside the Motion module so that the entire system will operate safety even when "[Pr.82] Forced stop valid/invalid selection" is set "1:
Invalid". Be sure to use the forced stop signal (EMI) of the servo amplifier.
"Forced stop function" stops all axes of the servo amplifier with the forced stop signal (The initial value is set to "1: Invalid".)
The forced stop input valid/invalid is selected by "[Pr.82] Forced stop valid/invalid selection".
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.
When "[Pr.82] Forced stop valid/invalid selection" is set to other than "1: Invalid", "Quick stop" defined in CiA402 is issued to
all servo amplifier axes after the forced stop input is turned on. Refer to the manual of the servo amplifier for the operation of
the servo amplifier when "Quick stop" is issued.
For MR-J5(W)-G: MR-J5 User's Manual (Function)
The outline of the forced stop process is shown below.
Stop cause
Forced "[Cd.158] Forced
stop stop input" OFF
The following drawing shows the operation of the forced stop function.
■4-axis module operation example
Each operation
PLC READY signal [Y0]
All axis servo ON [Y1]
Positioning start signal [Y10]
Forced stop input
([Cd.158] Forced stop input)
[Md.50] Forced stop input
[Md.108] Servo status1
(b1: Servo ON)
[Pr.82] Forced stop valid/
invalid selection
8 CONTROL SUB FUNCTIONS
250
8.3 Functions to Limit the Control
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Stop M code Axis
axis ON operation
signal status
after stop after
stopping
([Md.26])
All axes No change Servo OFF
1
ON
search engine
Stop process
Home position Major
return control positioning
control
Machine Fast
home home
position position
return return
control control
Immediate stop
Forced stop cause
occurrence
1
0
OFF
Other than 1
Forced stop input valid
High-level Manual control
positioning
control
JOG/ Manual
Inching pulse
operation generator
operation

Forced stop cause
occurrence
0
1
ON OFF ON