Omron FQM1-MMA21, FQM1-CM001, FQM1-MMP21 operation manual

Wiring Section 3-2

•LG is a noise-filtered neutral terminal. If noise is a significant source of errors and to prevent electrical shocks, connect the line ground terminal

to the ground terminal and ground both with a ground resistance of less than 100 Ω or less.

•If connecting the line ground and ground terminals, always ground both to less than 100 Ω to prevent electrical shock.

•The ground wire should not be more than 20 m long.

•The FQM1 is designed to be mounted so that it is isolated (separated) from the mounting surface to protect it from the effects of noise in the installation environment (e.g., the control panel).

Control panel

FQM1

ground terminal

Ground the FQM1 system separately to a resistance of 100 Ω or less.

•Do not share the FQM1's ground with other equipment or ground the FQM1 to the metal structure of a building. Doing so may worsen opera- tion.

62