Installation Guide

Connecting the Ground Wire to an 850 W DC Power Supply
Warning
Be sure to connect the chassis ground wire before you connect any power cables.
Warning
Be sure to disconnect the ground wire after you disconnect all power cables.
To connect the ground wire:
1. Verify that the DC circuit is de-energized.
2. Identify the grounding point on the front panel of the power supply.
Figure 280: Connecting the Ground Wire
1 = Grounding point
2 = Ground wire
3. Insert an M3.5 screw (provided) through the ring terminal and into the grounding point on the
power supply.
4. Tighten the screw to 12.6 in‑lb (1.42 N m).
5. Connect the other end of the wire to a known reliable earth ground point at your site.
Connecting an 850 W DC Power Supply to the DC Source Voltage
The DC power connection at your facility must be made by a qualified electrician, following the
instructions in this section.
Warning
Always make sure the DC circuit is de-energized before connecting or disconnecting the DC
power cables on the power supply.
Caution
Provide proper connection and strain relief on the DC power cables in accordance with all
local and national electrical codes.
To connect the DC power input cables:
1. Verify that the DC circuit is de-energized.
2. Slide the cover o the terminal block (see Figure 281 on page 349).
Installing an 850 W Internal DC Power Supply
Installing Switches
348 Summit Family Hardware Installation Guide