Mitsubishi Electric 800 Series Instruction Manual page 22

 Safety stop signal
Terminal
Common Terminal name
symbol
Safety stop input
S1
(Channel 1)
SIC
Safety stop input
S2
(Channel 2)
Safety monitor output
So (SO) SOC
(open collector output)
Terminal function description
The terminals S1 and S2 are used for the safety stop input
signal for the safety relay module. The terminals S1 and S2
are used at the same time (dual channel).
Inverter output is shutoff by shortening/opening between
terminal S1 and SIC, or between S2 and SIC.
In the initial status, terminal S1 and S2 are shorted with the
terminal PC by shorting wires. The terminal SIC is shorted
with the terminal SD.
Remove the shorting wires and connect the safety relay
module when using the safety stop function.
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 (BCN-
A23228-001) when the signal is switched to HIGH while both
terminals S1 and S2 are open. (Please contact your sales
representative for the manual.)
Rated specification
Input resistance: 4.7 kΩ
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.)
PRE-OPERATION INSTRUCTIONS
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