Chapter 1
Using the Mainframe
1-10
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Safety Grounding Information
Warning
For protection from electrical shock when operating at mains frequencies greater
than 66 Hz, connect the chassis ground terminal to permanent earth ground.
Grounding Procedure
Connect a 16 AWG (1.3 mm or larger) wire to the PEM nut shown
in Figure 1-6. The wire must be green with a yellow stripe or bare
(no insulation). Use an M4
×
10 screw, grounding lug, and toothed washers
(or toothed lug) as shown in Figure 1-7. Securely attach the other end of the
wire to a permanent earth ground using toothed washers or a toothed lug.
Figure 1-6. Grounding Connection
Figure 1-7. Grounding Screw, Toothed Washers
