Mitsubishi Electric MELSEC Q Series User Manual page 49

3 DESIGN
(b) The forced stop of all servo amplifiers is possible in a lump by using the
forced stop input signal [Y2] of QD74MH. After forced stop, the forced stop
factor is removed and the forced stop canceled.
(The servo error detection signal does not turn on with the forced stop.)
The wiring example and program example that uses the forced stop input of
input module (QX10) is shown below.
Q61P PLC CPU QD74MH
<Input module QX10>
<Program example>
(c) It is also possible to use the forced stop signal of the servo amplifier.
Refer to manual of the servo amplifier about servomotor capacity.
Operation status of the forced stop and the forced stop are as follows.
Operation of
Item
the signal ON
Emergency stop
Servo OFF
Forced stop
QX10
Xn
00 X20
1F X2F
COM
EMI.COM EMI
100VAC
24VDC
100VAC
TB17
TB16
TB1
R
Forced stop
(Note): The forced stop input can be set in the system settings.
X20
Shut off the power supply to the external servo amplifier
by external circuit, make the servomotor stopped.
The servomotor is stopped according to the stop
instruction from QD74MH to the servo amplifier.
3 - 8
Forced stop
QX10
R
Remark
MELSEC-Q
LED
Internal
circuit
Y2