Applying Safe Loads - Mitsubishi FX1N-422-BD Hardware Manual

FX1N Series Programmable Controllers Outputs 6.
6.2

Applying Safe Loads

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 safety critical situation, should not rely on the PLC's sequencing alone.
Mechanical interlocks MUST be fitted to all safety critical circuits. (See preceding figure.)
6-5