Maintenance and Troubleshooting SR-45i User’s Manual
220/230/240V 60 Hz TRANSFORMER
CONFIGURATIONS
220V 60 Hz, 230V 60 Hz, and 240V 60 Hz three phase power supplies are
equipped with a dual voltage main transformer TR1. The primary taps on TR1
are labeled with their corresponding voltages. To change the operating voltage
for these systems, perform the following procedures.
When the primary voltage
of TR1 is changed, the control transformer TR3 must also be rewired for the
correct service voltage.
220V 60Hz Operation
For 220V operation, connect the three phase primary power from the main
contactor CON2 to the 220V connection on each primary winding.
When the
primary voltage of TR1 is changed, the control transformer TR3 must also
be rewired for the correct service voltage
. For 220V operation, connect the
white wire of control transformer TR3 to TB2-13 and the brown wire to TB2-14.
Also, connect a wire (#20 AWG minimum) from the side terminal of the rear
panel fuse F1 to TB2-14.
230/240V 60Hz Operation
For 230V and 240V operation, connect the three phase primary power from the
main contactor CON2 to the 240V connection on each primary winding.
When
the primary voltage of TR1 is changed, the control transformer TR3 must
also be rewired for the correct service voltage
. For 230V and 240V operation,
connect the white wire of control transformer TR3 to TB2-13 and the brown wire
TB2-14. Connect the red/white wire of control transformer TR3 to the side
terminal of the rear panel fuse F1.
Connect the primary wires from
CON2 to either the three 220V taps
or to the three 240V taps.
For 230V units, connect the primary
wires to the 240V taps.
Figure 5-1 220/230/240V 60 Hz Three Phase Transformer
5-4
Содержание SR-45i
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