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OMRON Scientific Technologies Inc.
© OMRON STI 0613 PN99804-0060 Rev. B
22
7 O
UTPUTS
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7 . 1 S
AF E T Y
O
UT P UT S
WARNING!
This product is designed for use on a 24 VDC, negative ground (protective earth)
electrical system only. Never connect the MS4800 system to a positive ground (protective earth)
system. With a positive ground (protective earth) wiring scheme, certain simultaneous shorts of
both safety outputs may not be detected and the guarded machine may not stop, resulting in
severe operator injury.
The MS4800 system receiver supplies two independent PNP-type, safety outputs to provide run/stop
signals to the guarded machine. In the MACHINE RUN state, the safety outputs are electrically
conducting and source 625mA of current at 24 VDC. In the MACHINE STOP state, the outputs are
not electrically conducting.
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