Mitsubishi Electric MELSEC Q Series User Manual page 44

3 DESIGN
POINT
(1) (Note-1): Configure up the power supply circuit which switch off the electromagnetic contactor (MC) after detection alarm occurrence
on the PLC CPU.
(2) (Note-2): It is also possible to use a full wave rectified power supply as the power supply for the electromagnetic brake.
(3) (Note-3): It is also possible to use forced stop signal of the servo amplifier.
(4) (Note-4): Set the servo amplifier by setting the rotary switch of servo amplifier referring Section 4.2.1.
(5) (Note-5): The status of forced stop input signal can be confirmed with "
(6) (Note-6): It recommends using one leakage breaker for one servo amplifier. When electric power is supplied to multiple servo amplifiers
for one leakage breaker, select the wire connected to the servo amplifier according to the capacity of the leakage breaker.
MC
CP3
(Note-1): When the control power supply of servo amplifier is shut off, it is not possible to communicate with the servo amplifier after that.
Example) When the control power supply L11/L21 of servo amplifier in above
communicate with the servo amplifier
shut off the main circuit power supply L1/L2/L3, and do not shut off the control power supply L11/L21.
(Note-2): Be sure to shut off the both of main circuit power supply L1/L2/L3 and control power supply L11/L21 at the time of exchange of
servo amplifier. At this time, it is not possible to communicate between the servo amplifier and QD74MH. Therefore, be sure to
exchange the servo amplifier after stopping the operating of machine beforehand.
(Note-3): If the forced stop input signal by external 24VDC turns OFF when setting of "
servomotor is stopped with dynamic brake. (The LED display of servo amplifier indicates "E7" (Controller forced stop warning).)
NFB2
(Note-6)
L1 MR-J3-B
L2
A
L3
(Note-4)
L11
L21 0
DICOM
SSCNET CN1A ALM
EM1
CN1B
DOCOM
NFB3
(Note-6)
L1 MR-J3-B
L2
B
L3
(Note-4)
L11
L21
DICOM
CN1A ALM
EM1
CN1B
DOCOM
NFB4
(Note-6)
L1 MR-J3-B
L2
C
L3
(Note-4)
L11
L21
DICOM
CN1A ALM
EM1
CN1B
DOCOM
C
. If only a specific servo amplifier control power supply is shut off, be sure to
3 - 3
Forced stop input status".
Md.103
U
U
V
V SM
W
W
Electro-
magnetic
Ground
brake
(Note-2)
Ra2
24VDC
(Note-3)
U
U
V
V SM
W
W
Electro-
magnetic
Ground
brake
(Note-2)
Ra3
24VDC
(Note-3)
U
U
V
V SM
W
W
Electro-
magnetic
Ground
brake
(Note-2)
Ra4
24VDC
(Note-3)
B
figure is shut off, it is also not possible to
External forced stop selection" to "0 : Valid",
Pr.101
MELSEC-Q
Ra2
Ra3
Ra4