Mitsubishi Electric 700 Series Instruction Manual page 10

Example 2
START
Emergency
stop button
+24V X0 COM0 X1 COM1
Internal
DC24V
Safety
Circuit
24G
MITSUBISHI ELECTRIC
MELSEC Safety relay module
QS90SR2SN-Q
Fig.6 Safety system example 2 – STOP synchronous with emergency stop button and fault
NOTE
•
XS0 should be connected to RUN terminal and XS1 should be connected to SE, because polarity of
XS0 is positive, XS1 is negative.
•
Pr. 190 (RUN terminal function selection) must be set to "81". This setting makes the RUN output to
turn off in case of failure.
•
The above wiring is configured to prevent restart in case of a fault.
•
When starting up the system's operation, press the START switch to reset the safety stop function
first, then turn ON the STF switch to run the motor.
•
In the above Fig.6, wired example 2, in the event of reset of 'safe-condition' the motor rotation will
not occur until STF is pressed.
(for normal 'non-safety' STF/STOP function, please refer to your drive's User Manual)
 To prevent restart in case of recovering from input power loss of drive, 3-wired connection for
STF/STOP control is recommended. In case of 2-wire connection and using latching type switch to short
between STF and SD/PC for starting, ensure the compliance with safety requirement for the restarting
when the drive recover from input power loss.
Inverter connection
Do not connect the FR-E700-SC/NF/NC (source logic) or the FR-D700-SC (source logic) together with the
FR-D700 (sink logic). If connected together, the safety stop function does not work properly.
FR-E700-SC/NF/NC
(source logic)
FR-D700-SC
(source logic)
FR-D700 (sink logic)
RUN (SAFE2)
STF
STOP
XS0 XS1 Z00 Z10 Z20
K1
K2
Z01 Z11 Z21
* If the control logic is SINK logic, the common
terminal is terminal SD.
detection through RUN output.
FR-E700-SC/NF/NC
(source logic)



SE
STF
STOP
CPU
+24V
S1
+24V
S2
SC
PC*
CAUTION
FR-D700-SC
(source logic)



8
R/L1 S/L2 T/L3
IGBTs
Gate Gate
Driver Driver
G G
U V
FR-D700
M
FR-D700 (sink logic)



 
: Enabled, : Disabled
W