2. Wiring of PCS-DS51
75
z
Isolation from Other Wiring
Basically, place the serial bus cable more than 2 meters away from power supply lines or devices
that generate electromagnetic fields. When the distance of more than 2 meters is difficult to
obtain, check the actual voltage and current of the inductor and refer to Table 2.12.
Table 2.12 Recommended Minimum Distance of Separation
Inductor Minimum distance between parallel lines
Current/Voltage 100A Up to 100A or less 50A or less 10A or less
440V Up to 2000mm 2000mm 2000mm 2000mm
440V or less 2000mm 600mm 600mm 600mm
220V or less 2000mm 600mm 600mm 500mm
110V or less 2000mm 600mm 500mm 300mm
60V or less 2000mm 500mm 300mm 150mm
Considering the noise immunity, use a metal cable duct with lid or steel protection duct. Table
2.13 lists the recommended minimum distances of separation for the signal line and power
supply line in case of the parallel wiring.
Table 2.13 Recommended Minimum Distance of Separation
(Metal Duct with Lid and Metal Duct Work)
Laying of Cable Metal Duct with Lid and Metal Duct
Parallel Distance
10m or
less
25m or
less
100m or
less
200m or
less
500m or
less
501m or
less
125V or less 10A or less 10 or
more
10 or
more
50 or
more
100 or
more
200 or
more
250 or
more
250V or less 50A or less 10 50 150 200 250 250
400V or less 100A or less 50 100 200 250 250 250
500V or less 200A or less 100 200 250 250 250 250
Power Cable
Power exceeding above 500 or more
(Note)
“
Microcomputer Applied Measuring Instrument Installation Environment Guideline
”
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