Mitsubishi Electric FR-D700 Instruction Manual page 8

START
Emergency stop button
+24V X0 COM0 X1 COM1
Internal
DC24V
Safety
Circuit
24G
MITSUBISHI MELSEC Safety relay module
QS90SR2SN-Q
Fig.4 Example when using multiple FR-D740-EC and FR-D720S-EC inverters
manufactured in August 2010 or later for the safety stop function
NOTE
When using the safety stop function, do not connect the FR-D700 series manufactured in July 2010 or
before together with the one manufactured in August 2010 or later. If connected together, the safety
stop function may not work properly.
When the FR-D700 series manufactured in July 2010 or before must be used together, connect an
electronic component (diode) to the inverter output shutoff signals (terminal S1 and S2).
Refer to page 7 for the specification of the diode.
STF
STOP
XS0 XS1 Z00 Z10 Z20
K1
K2
Z01 Z11 Z21
STF
STOP
A(SAFE2)
B
RY
C
STF
STOP
PC
SOURCE
CPU
+24V
S1
+24V
S2
SC
A
(SAFE2)
B
RY
C
STF
STOP
PC
SOURCE
CPU
+24V
S1
+24V
S2
SC
6
R S T
IGBTs
Gate Gate
Driver Driver
G G
FR-D700
U V
IM
R S T
IGBTs
Gate Gate
Driver Driver
G G
FR-D700 U V
IM
W
W