6. LOADING AND INSTALLATION
.(1) Ground the surge absorber (El) an the PC (E2) separately from each
(2) Select a surge absorber making allowance for power voltage rises.
Wiring of I/O equipment
(a) Applicable size of wire to the terminal block connector is 0.3 (18) to
2 mm 2 (14 AWG). However, it is recommended to use wires of 0.75
(18 AWG) for convenience.
(b) Separate the input and output lines.
(c) I/O signal wires must be at least 100 mm (3.94 in) away from
high-voltage and large-current main circuit wires.
(d) When the I/O signal wires cannot be separated from the main circuit
wires and power wires, ground on the PC side with batch-shielded
cables. Under some conditions it may be preferable to ground on
the other side.
(e) If wiring has been done with piping, ground the piping.
(f) Separate the 24 VDC I/O cables from the 100 VAC and 200 VAC
(g) If wiring over 200 m (656.2 tt) or longer distance, trouble can be
caused by leakage currents due to line capacity referring to the I/O
error examples in the A2C I/O module User's Manual.