63
Precautions for I/O module wiring
Input and output cables should be separated.
If the power cable is close to the I/O cable, error may occur due to the high voltage and current.
Please keep the I/O cable from the power cable at a distance of more than 100mm.
24VDC I/O calbe should be kept separately from the AC power cable.
When wiring using duct, make sure grounding is well-performed.
When cannot be laid separately from power cables…
All the cables can use shielded cables and be grounded on the PLC side.
(Depending on the environment, it is sometimes necessary to ground on the opposite side of the PLC)
The cables of extension modules should be separated from the power cable.
4-2-2 Precautions on module grounding
Perform class-D grounding and the grounding resistance should be 100Ω or less.
When independent grounding is not possible, take the shared grounding. But the cable length must
be the same.