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3-2
Getting Started
3.2. Hardware Installation - RPC-40L8A4 Series Units
3.2.1. Apply Power to the RPC-40L8A4
Refer to power rating nameplate on the back panel, and then remove the protective
cover from the terminal block and connect the RPC-40L8A4 unit to an appropriate
power source as shown in Figure 3.1 below.
Note:RPC-40L8A4seriesunitsfeaturetwocompletelyindependentbuses,
andforeachcircuit,voltageisconnectedtothe+/-terminal(fornegative48or
positive48voltunits,powerisconnectedtothe+/-terminalsandforpositive
24and12voltunits,positivepowerisalsoconnectedtothe+/-terminals.)
Warning: An exposed wire lead from a DC input power source can
conduct harmful levels of electricity. Make certain that no exposed portion
of the DC input wire extends from the terminal block.
Input voltages for RPC-40L8A4 units are described in the table below:
ModelNumber Voltage VoltageRange
RPC-40L8A4-48 +48 or - 48 VDC 18 to 72 VDC
RPC-40L8A4-24 +24 VDC 18 to 72 VDC
RPC-40L8A4-12 +12 VDC 9 to 36 VDC
When you have finished connecting power lines to the RPC-40L8A4 unit, make certain
to replace the protective input terminal block cover.
A ±DC
(Branch A Voltage:
Connect ±48, +24
or +12 V DC)
A RTN
(Branch A Return)
Chassis
Ground
B ±DC
(Branch B Voltage:
Connect ±48, +24
or +12 V DC)
B RTN
(Branch B Return)
DC Power Wire
10 to 12 Gauge
Use No. 10
Ring Terminal
Figure 3.1: DC Input Block Terminal (RPC-40L8A4 Series - Protective Cover Not Shown)
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