Mitsubishi Electric FR-D720S SC EC Instruction Manual page 52

Control circuit specifications
Safety stop signal
Terminal
S1
S2
SC
SO
SE
Tab. 3-12: Safety stop signal
3 - 16
Name Description
Safety stop input Terminals S1 and S2 are for safety stop
(Channel 1) input signals used with the safety relay
module. Terminals S1 and S2 are used
simultaneously (dual channel). Inverter
output is shut off by shortening/opening
across terminals S1 and SC and across
Safety stop input
S2 and SC. In the initial status, terminals
(Channel 2)
S1 and S2 are shorted with terminal SC by
shortening wire. Remove the shortening
wire and connect the safety relay module
when using the safety stop function.
Common terminal for terminals S1 and S2.
Safety stop input
Connected to terminal PC inside of the
terminal common
inverter.
The signal indicates the status of safety
stop input. Low indicates safe state, and
High indicates drive enabled or fault
detected. (Low is when the open collector
output transistor is ON (conducts). High is
Safety monitor output
when the transistor is OFF (does not con-
(open collector out-
duct).)
put)
If High is output when both of terminals S1
and S2 are open, refer to the "FR-D700
SC EC – Safety stop function instruction
manual, document no.: BCN-A211508-
005" for the cause and countermeasure.
Open collector output Common terminal for terminals RUN and
common SO.
Wiring
Refer to
Specification
Page
Input resistance:
4.7kΩ
Current: 4–6 mA
(In case of shorted to
SC)
Voltage:
21–26V (In case of
open from SC)
Logic: source logic.
(cannot be changed)
—
3-22
Load:
24VDC/0.1A max.
Voltage drop:
3.4V max.
(In case of 'ON' state)
—