Firepower FP-80, Руководство по эксплуатации

Страница: 19 / 42

Manual 0-2803 13 INSTALLATION PROCEDURES
3.06 Input Voltage Selection
NOTE
For power supplies to use 575 VAC input power,
the unit must be setup for 460V three-phase op-
eration and the 575V Transformer Accessory must
be installed.
The Power Supply has three voltage settings;
208/230VAC, 380-415VAC, or 460VAC. Power Supplies
are factory-wired for 230VAC single-phase input power.
Input voltage selection is accomplished by switching a
wire harness connector inside the Power Supply. Also, a
jumper wire must be properly installed depending on the
input used.
WARNING
Disconnect primary power at the source before as-
sembling or disassembling the power supply, torch
parts, or torch and leads assemblies.
Move the Voltage Selection Plug to the desired Voltage
Selection Connection for 208/230V, 380-415V, or 460V op-
eration per the label attached to the panel.
Voltage Selection
Plug
380-415 Volts
460 Volts
208/230 Volts
A-02222
Voltage Selection
Connectors
Voltage Selection
Label
Figure 3-3 Input Voltage Selection
3.07 Input Power Cable Connections
The primary power cable must be supplied (see Note) by
the end user and installed to the Power Supply assembly.
Recommended cable sizes are specified in Appendix I.
NOTE
Units are shipped with an input power cable and
plug for 230 VAC, single-phase, operation.
1. Route the primary power cable through the strain re-
lief fitting in the rear panel of the Power Supply and
tighten stain relief screws.
AC Input Power
Cable Strain Relief
AC Input
Power Cable
A-00912
Figure 3-4 AC Input Power Cable Strain Relief
2. Connect the input cable inside the Power Supply for
the type of operation per the following:
Three-Phase Operation
Three-phase operation requires a 3-conductor cable
with ground.
a. Locate the ground stud and remove the top nut
and washer.
b. Install a lug terminal on the ground wire.
c. Place the ground wire onto the ground stud
and secure with the nut and washer.
d. Insert the other three wires into the L1, L2, and
L3 terminals on the contactor. For three-phase
operation, the jumper wire between L2 and L2
(storage) must be left in this storage connec-
tion.
e. Tighten all set screws.
NOTE
The jumper wire from L1 to L4 must not be re-
moved.