Precision Control Systems 930 - Manual (Page 23)

Model 930 ControlIR TM Instruction Manual Maintenance and Trouble Shooting
Research, Inc. Page 19 of 25
LINE VOLTAGE
RE-CONFIGURATION
Figure 5-1 AC Voltage Tap
Figure 5-2 T200 Transformer
The AC line voltage for the Model 930 Power Control System may be re-configured. On
transformer T100, a wire with wire number 1070 is connected to pins 3 or 4. Move this
wire to the pin corresponding to the desired line voltage.
Pin 3 240 VAC
Pin 4 480 VAC
See Figure 5-1 below.
On transformer T200, it is necessary to re-configure the primary wires per the
following (see Figure 5-2):
240VAC 480VAC
Jumper H1 to H3 Jumper H3 to H2
Jumper H2 to H4