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Chapter 4. WIRING
4-6
4-5 Connecting the Ground and Power Supply
■ Power supply
Connect the DCP301 to a single-phase power supply for controllers, and take measures
to prevent the influence of electrical noise.
1
3
2
1
2
E
3
4
GND
~
Instrument
power supply
Other circuits
GND GND
Recommended
line filter
81446364-001
DCP301
200/200V,
100/100V
insulated transformer
• If the power supply generates a lot of electrical noise, we recommend inserting
an insulating transformer in the power circuit and using a line filter.
Recommended line filter: Model No. 81446364-001
• After providing anti-noise measures, do not bundle primary and secondary power
leads together, or pass them through the same piping or wiring duct.
■ Ground
When it is difficult to ground shielded cable, prepare a separate ground terminal (earth
bar).
Ground type: 100Ω max.
Ground cable: 2mm sq. min soft-copper wire (AWG14)
Cable length: Max. 20m
3
FG
terminal
DCP301
GND terminal plate
GND (100Ω max.)
Shielded cable
Use only the FG terminal (3) on the DCP301 for grounding. Do not ground across
other terminals.
Handling Precautions
Handling Precautions