I/O Wiring Considerations - Omron SYSMAC C200H-AD003 Operation Manual

Wiring

4-3-5 I/O Wiring Considerations

4. Crimp-type terminals must be used for terminal connections, and the
screws must be tightened securely. Use M3 screws and tighten them to a
torque of 0.5 N S m.
Connecting shielded cable to the Unit's COM terminals (A9, B9) can improve
noise resistance.
To minimize output wiring noise, ground the output signal line to the output de-
vice.
When wiring inputs, apply the following points to avoid noise interference and
optimize Analog I/O Unit performance.
• Use shielded twisted-pair cable for external connections.
• Route I/O cables separately from the AC cable, and do not run the Unit's
cables near a main circuit cable, high voltage cable, or a non-PC load cable.
• If there is noise interference from power lines (if, for example, the power supply
is shared with electrical welding devices or electrical discharge machines, or if
there is a high-frequency generation source nearby) install a noise filter at the
power supply input area.
• When the power supply to the PC is turned on or off, momentary voltage or
current may be output from the output terminal.
Fork Type
M3 screw
6.0 mm max.
Round Type
6.0 mm max.
Section 4-3
75