Vdc To 12 Vdc Power Converter; Instructions - ABB NGC8206 User Manual

3.33 24 VDC to 12 VDC Power Converter

Before beginning, review the procedure and the materials required for installation.
This power converter is not applicable for NGC systems with optional auxiliary
feed-through heater.

3.33.1 Instructions

1) If configured, the optional equipment enclosure should contain an installed
converter. Enclosure should be installed using instructions shown previously in
this chapter.
2) Remove the necessary plugs from the side of the enclosure to install the rigid
conduit.
3) Pipe the conduit and associated DC wiring into the enclosure.
4) Using the wiring instructions in
VDC(+) and (-) source to TB1 terminal 11A (+) and terminal 12A (-) on the power
supply.
5) Pipe the conduit and associated DC wiring from the NGC into the power supply
enclosure. See
6) Remove the J1 connector from the NGC termination panel. Using the wiring
instructions in
wire from the TB1 terminal 7A to the J1 connector (+) pin and connect the ground
wire from TB1 Terminal 8A to the J1 connector (-) pin. Do not re-insert the J1
connector to the termination board.
7) Go to the
Page 3–68
The DC/DC power converter may be approved for classified
hazardous locations or potentially explosive atmospheres.
Verify the rating listed on the unit tag and install per the
referenced control drawing. Be sure to follow the requirements
of national and local codes when installing the power
converter.
Installation must be performed by person(s) qualified for the
type and area of installation, according to national and local
codes.
Review the Grounding the NGC section in
Description, before making power connections.
Figure
Table 2–4 for wire sizes.
Figure 3-72 make the field connections from the power supply
DC Power Installation
3-72, make field connections from the 24
later in this chapter.
System
2101510 Rev. AG