3 Installation and Wiring
3 - 10
NA-series Programmable Terminal Hardware User’s Manual (V117)
Use the enclosed power supply connector to connect the power supply to the NA Unit.
• We recommend that you use a power supply cable with the following stranded wires. Wire the power
supply giving sufficient consideration to the voltage drop and heat generation for the cable length in
the installation environment.
Applicable Wires (Stranded Wires)
Power Supply Connector
Wiring Materials
Size Conductor cross-section
AWG12 to AWG22
0.35 to 3.31 mm
2
Pin No. Signal name Name
1 +24 V +24-V input
20 V0 V
3 FG Functional ground
Wiring
Functional ground
(Refer to Grounding, below.)
Breaker
24-VDC
power supply
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