Mitsubishi Electric FR-F802-E Instruction Manual page 38

Inverter for fans and pumps
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Safety stop signal
For the safety stop function, refer to
Terminal
Terminal name
Symbol
Safety stop input
S1
(Channel 1)
Safety stop input
S2
(Channel 2)
Safety stop input
SIC
terminal common
Safety monitor output
So (SO)
Open collector output
Safety monitor output
SOC
terminal common
page
46.
Terminal function description
Terminals S1 and S2 are used for the safety stop input signal for the
safety relay module. Terminals S1 and S2 are used at the same time
(dual channel).
Inverter output is shutoff by shortening/opening between terminals S1
and SIC, or between S2 and SIC.
In the initial status, terminal S1 and S2 are shorted with terminal PC by
shorting wires. Terminal SIC is shorted with terminal SD. Remove the
shorting wires and connect the safety relay module when using the safety
stop function.
Common terminal for terminals S1 and S2.
Indicates the safety stop input signal status.
Switched to LOW when the status is other than the internal safety circuit
failure. Switched to HIGH during the internal safety circuit failure status.
LOW is when the open collector output transistor is ON (conducted).
HIGH is when the transistor is OFF (not conducted).
Refer to the Safety stop function instruction manual (BCNA23228-001)
when the signal is switched to HIGH while both terminals S1 and S2 are
open. (Please contact your sales representative for the manual.)
Common terminal for terminal So (SO).
Control circuit
Rate Specification
Input resistance
4.7 k
Input current 4 to 6
mADC (with 24 VDC
input)
———
permissible load
24 VDC (27 VDC at
maximum), 0.1 A
(The voltage drop is
3.4 V at maximum
while the signal is ON.)
———
INSTALLATION AND WIRING
2
37

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