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Step 2
Attach the grounding cable (green and yellow colored cable), firmly fastening the (enclosed) hex nuts and spring
washers with a #¼" hex wrench (refer to the appropriate figure for an AC- or DC-powered SCE 2000 above).
The other side of the grounding cable must be connected to the site equivalent of the AC earth.
Connect the Power
The following sections describe how to reconnect the AC or DC power:
Connect the DC-Input Power Supply Unit
•
Connect the AC-Input Power Supply Unit
•
Connect the DC-Input Power Supply Unit
Figure 10: Connecting the DC Power
Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is
Warning
removed from the DC circuit. To ensure that all power to the power supply unit is OFF, locate the circuit breaker on
the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch
handle of the circuit breaker in the OFF position.
Note that the power to the relevant power supply unit should be off, not necessarily all power to the SCE 2000
platform. One DC-input power supply can be running when the other power supply is being removed or replaced.
Wiring should be done by a professional in accordance with state and local electrical codes.
Warning
Ensure that the DC power line input leads are disconnected from the power source.
Step 1
Using the number 2 Phillips screwdriver, remove the protective plate from the terminal block.
Step 2
12
(on page 12)
(on page 13)
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