FX1N Series Programmable Controllers Outputs 6.
6-8
Mechanical Interlock
Ensure all loads are applied to the same side of
each PLC output, see previous figures. Loads
which should NEVER simultaneously operate
(e.g. direction control of a motor), because of a
critical safety situation, should not rely on the
PLC’s sequencing alone. Mechanical interlocks
MUST be fitted to all critical safety circuits. (See
proceeding figure.)
Note: If using another output type, please replace
symbol with appropriate symbol.
PLC output
MC1
Forward
operation
MC2 LSF
MC1MC2 LSF
PLC output
Reverse
operation
Mechanical
interlock
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