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D20E Ethernet I/O Module
Chapter 6: Preliminary Power Up and
Test
Safety and protective earth grounding
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
Preliminary Power Up and Test
This chapter describes:
•
Safety and protective earth grounding
•
Power source connection
•
Power supply requirements
•
Preliminary power-up and test procedure
Surge and noise suppression components used on the D20E module conduct during
transients to prevent mal-operation or damage to internal devices. To ensure shunting of
transients from points to ground and to ensure that the D20E module has a bonded safety
earth ground, the D20E module's earth ground point must be connected to a low
impedance ground using a braided cable or a solid copper conductor (minimum
(#12 AWG) wire is recommended). The connection must be made to the #10 safety/
protective earth screw and lock washer stud located on the lower-right-side of a D20E
module (see Figure 15) with a ring lug. When making ground connections, ensure that all
surfaces that are used for grounding are free of dirt, residue and corrosion.
Figure 15: D20E protective earth ground
on page 83
on page 84
on page 85
on page 85
Safety and protective
earth ground screw
GE INFORMATION
2
4 mm
83
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