■
Power supply
Connect the
DCP31
to a single-phase power supply for controllers,
and take measures to prevent the influence of electrical noise.
Handling Precautions
• If the power supply generates a lot of electrical noise, we recom-
mend inserting an insulating transformer in the power circuit
and using a line filter.
Recommended line filter: Azbil Corporation, 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: 100 Ω max.
Ground cable: 2 mm sq. min soft-copper wire (AWG14)
Cable length: Max. 20 m
Handling Precautions
Use only the FG terminal ( ) on the DCP31 for grounding. Do not
ground across other terminals.
1
3
2
1
2
E
3
4
GND
Instrument
power supply
Other circuits
GND
GND
Recommended
line filter
81442557-001
DCP31
200/200 V,
100/100 V
insulated transformer
3
FG
terminal
DCP31
GND terminal plate
GND (100 Ω min.)
Shielded cable
4-6
Chapter 4. WIRING
4 - 5
Connecting the Ground and Power Supply
