START
Emergency
stop button
+24V
X0
COM0
X1
COM1
Internal
DC24V
Safety
Circuit
24G
MITSUBISHI ELECTRIC
MELSEC Safety relay module
QS90SR2SN-Q
Fig.4 Example when using multiple FR-D740-SC inverters for the safety stop function
NOTE
•
Pr.190 (RUN terminal function selection) must be set to "81". This setting makes the RUN output to
turn off in case of failure.
•
Do not connect the FR-D700 (sink logic) together with the FR-D700-SC (source logic). If connected
together, the safety stop function does not work properly. (Refer to page 7.)
RUN (SAFE2)
XS0
XS1
Z00
Z10
Z20
K1
K2
Z01
Z11
Z21
SE
CPU
S1
S2
+24V
SC
RUN
(SAFE2)
SE
CPU
S1
S2
+24V
SC
6
R/L1
S/L2
T/L3
IGBTs
Gate
Gate
Driver
Driver
G
G
FR-D700-SC
U
V
M
R/L1
S/L2
T/L3
IGBTs
Gate
Gate
Driver
Driver
G
G
FR-D700-SC
U
V
M
W
W