Ametek SHPF3 Series, Инструкция по эксплуатации и техническому обслуживанию

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SHPF3 SCR Power Controller Installation
Rev 2 Ametek HDR Power Systems 9
Current Input Voltage / Manual Pot Input
Figure 3.2 Isolated/Non-Isolated Switches
3.6 Determining Line Frequency
The SHPF3 is designed to operate on either 50 or 60 Hz. Usually the SHPF3 is shipped for 60 Hz
operation, unless otherwise ordered. The SHPF3 can be set for either ac line frequency by selecting
50 Hz or 60 Hz on SW3 on the control board on the inside front door.
3.7 Voltage Changeover
On occasion, customers may wish to operate a SHPF3 SCR Power Controller on line voltages other
than what was specified when originally ordered. The SHPF3 may be changed to accept a wide range
of line voltages (120, 240, 400, 480, 575 Vac), so long as the load current does not exceed the
SHPF3’s current rating. This is accomplished by performing the procedure described below.
.
Using the system schematic (located in the Appendix) as reference, perform the voltage changeover
procedure as follows.
1. Open the SCR power controller, and locate transformer T1 and T2. The primary side of T1
transformer will contain two wires (one black, the other white and black), the primary side of T2 will
contain two wires (one red the other yellow). Refer to figure 3.3.
T2 T1
Figure 3.3 T1, T2 Transformer Connections
WARNING
Voltage changeover should be performed by qualified personnel only.
Always remove power and properly lock out power to the unit before
attempting any service.
----
OP
EN
----
1
2
3
4
C1
C2
NON
-ISOLAT
ED-
C2
SW
2
ISOLA
TED-
C1
SW
1