GE Multilin D20E - Page 82

84 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
CHAPTER 6: PRELIMINARY POWER UP AND TEST
Power source connection
Each D20E module requires 5W of power using an external 24/48 VDC power supply.
Figure 16 shows the location of the redundant power supply connections.
Figure 16: D20E redundant power supply connections
The wiring connected to terminal block TB1 must not have exposed accessible
conductors.
The wire and cable connected must have at least a +80 °C temperature rating.
Ensure that the external power source is shut off before connecting or disconnecting
the power supply to the D20E Ethernet I/O Module. Use an approved external 20A
switch or circuit breaker that opens all conductors simultaneously. The switch or
circuit breaker must be suitably located, easily reached, and labeled appropriately.
Table 20: D20E-DC power and i/o supply connections
NOTE
The Control Output external supplies listed above must be connected in order to facilitate
the D20E-K (see section
Control output external supply on page 90) and D20E-C Remote/
Local switch (see section D20E-C module -Local/Remote switch on page 100).
Redundant power
supply connections
Power supply type Description
D20E External Power Supply connection
D20E-K Control Output External Supply TB2-54 (+/‒)
TB2-1 (‒/+)
D20E-K (DB25) Interface TB2-3 (+/‒)
TB2-1 (‒/+)
D20E-S Digital Input Wetting
External Supply
TB2-65 (+/‒)
TB2-131 (‒/+)
D20E-A Analog Input Loop
External Supply
TB2-49 (+)
TB2-99 (‒)
D20E-C Digital Input Wetting External
Supply and
Control Output External Supply
TB2-1 (+/‒) Digital Input (Control Output supply for DPST)
TB2-51 (‒/+) Digital Input (Control Output supply common
return)
TB2-2 (+/‒) Control Output (Trip/Close and Raise/Lower)
1
3
2
4
DC Input 1+ DC Input 1-
DC Input 2+
DC Input 2-
TB1