Hobart 6T28-600CL Operation And Maintenance Manual page 28

OM-2244 / Operation and Maintenance Manual
DCS-600/ Series 500082/ Solid State Transformer-Rectifiers
If it is necessary to change the configuration, follow these steps:
(1) On the T1 Changeover Board, move the jumper links as shown on the diagram for your voltage
requirement.
(2) On the right side of control transformer, move the yellow wire to the tap specified in the diagram.
c) Connect the Input Cable to the GPU
(1) Route the cable through the hole provided in the rear panel.
(2) Connect the three-phase line leads to input terminals on line contactor, which is located on the
interior panel inside the power supply cabinet.
(3) Be certain that the cable will not contact the fan or hot parts on the SCR heat sink assembly.
(4) Attach the equipment ground conductor to the stud provided adjacent to the contactor.
WARNING
To help protect against electrical shock from line voltage or static discharge, make
sure the GPU is grounded.
NOTE: After connecting the input cables, it is recommended that ITW GSE # 904021 urethane coating
be sprayed on the connections at the contactor to protect these connections from corrosion,
fungus, and contamination. Spraying these connections will also reduce the potential for arcing
from dirt and condensation.
d) Connect the Input Cable to the Utility Service
Before connecting input cables to the power supply service, check voltage, amperage and phase
ratings of the service. Make certain that the capacity of the service is adequate for the power
requirements of the unit being connected to it. Make certain that the service used as the source of
input power is grounded. Refer and conform to your local electrical code when selecting and
installing power supply service.
December 15, 2014
Figure 3 Input Contactor
Chapter 1-2
Page 4