Connecting the Ground Cable

After installing the DC power supply (Model 10933 or 10934A), you must ground it before attaching it to a power source.

Warning

Connect the ground cable before you connect any power cables.

Warning

Disconnect the ground cable after you disconnect all power cables.

1. Verify that the DC circuit is de-energized.
2. Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate ground point on the rack.
3. Identify the grounding point on the power supply (shown in the figures below).
4. Insert a 6-32 UNC screw (provided) through the ring terminal and into the grounding point on the power supply.
   See the following figures.

   

   Connecting the Ground Cable (Model 10933)

   

   1 = Grounding point

   2 = Ground cable

   

   Connecting the Ground Cable (Model 10934A)

   

   1 = Grounding point

   2 = Ground cable

5. Tighten the screw to 12.6 pound-inches (1.42 Newton-meters).
6. Connect the other end of the cable to a known reliable earth ground point at your site.