FP2600-T41 User Manual
3-7
Installation and Wiring
3-2-3 Precautions: Grounding
other
equipment
FP unit
FP unit
other
equipment
FP unit
other
equipment
(a) Exclusive grounding (BEST)
(b) Common grounding (OK)
(c) Common grounding (BAD)
3-2-4 Precautions: Input/Output Signal Lines
Input and output signal lines must be separated from operating circuit power cables.
If this is not possible, use a shielded cable and connect the shield to the FP chassis.
Connect the FP's FG terminal to an ex-
clusive ground. [diagram (a) - Grounding
resistance of under 100
Ω
.]
If exclusive grounding is not possible, use
a common connection point. [diagram
(b)]
The grounding wire should have a cross
sectional area greater than 2mm
2
. Make
the connection point as close to the FP
unit as possible, and make the wire as
short as possible. When using a long
grounding wire, replace the thin wire with
a thicker wire placed in a duct.
If this equipment does not function prop-
erly when grounded, disconnect the
ground wire from the FG terminal.
