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4 - 5 Power Supply and Grounding
4-6
■ Power supply
To supply power to the DCP552, use an instrument-dedicated single-phase power
supply subject to minimal electrical interference.
Handling Precautions
•
If electrical interference proves excessive, we recommend adding an
insulating transformer and/or using a line filter.
model No.: 81446364-001
•After carrying out interference reducing measures, do not bundle the
primary and secondary power supply coils together or insert them in the
same conduit or duct.
■ Grounding
If grounding the shield wire or other lines proves difficult, ground them separately
to a grounding terminal block.
Type : A ground resistance of maximum 100Ω
Conductor : Annealed copper wire, min. 2mm
2
(AWG14)
Max. Length : 20m
Handling Precautions
To ground the DCP552, connect the FG terminal (terminal (52) or (53)) to a
single ground point without jumpering.
31
E
2
4
Recommended product
81446364-001
Line filter
Other circuits
100 to 240V AC
50/60Hz
200 to 240/200 to 240V
110 to 120/110 to 120V
Insulating transformer
Instrument power supply
Grounding
Grounding
DCP552
GND
53
or
39
40
52
Chapter 4. WIRING