Thermal Dynamics CutMaster 75, Operating Manual

Page: 16 / 48

INSTALLATION 3-2 Manual 0-2868
For 400-VAC, 460-VAC, or 600-VAC Three-Phase op-
eration:
1. Remove the Power Supply cover per section 5.05.
2. The cable's outer covering is stripped back at the
factory to expose the individual wires at the free
end of the cable.
3. Connect the ends of the individual wires to a cus-
tomer supplied plug or main disconnect as fol-
lows:
CAUTION
The primary power source and power cable must
conform to local electrical code and the recom-
mended circuit protection and wiring requirements
(refer to table in Appendix 1). All the input cable
wires must be connected for three-phase operation.
• L1 wire to Line 1.
• L2 wire to Line 2.
• L3 wire to Line 3, refer to Caution above.
• Ground wire to Ground (Earth).
4. Replace the Power Supply cover.
5. Connect the input power cable (or close the main
disconnect switch) to supply power to the system.
For 460-VAC, Single-Phase operation:
1. Remove the Power Supply cover per section 5.05.
2. Disconnect the original input power cable from
the main input contactor and the chassis ground
connection.
3. Loosen the strain relief on the back panel of the
power supply. Pull the original power cable out
of the power supply.
4. Pass a customer-supplied, three-conductor input
power cable through the access opening in the
back panel of the power supply. Refer to Appen-
dix 1 for power cable specifications. Tighten the
strain relief to secure the power cable.
CAUTION
The primary power source and power cable must
conform to local electrical code and the recom-
mended circuit protection and wiring requirements
(refer to table in Appendix 1).
5. Strip back the insulation on the individual wires
and connect as follows:
• Line 1 (Live) wire to main input contactor ter-
minal L1.
• Line 3 (Live) wire to main input contactor ter-
minal L3.
• Ground wire to Ground (Earth). The Ground
wire connection requires a ring terminal.
A-03041
L1
L3
Ground Wire
with Ring
Terminal
Main Input
Contactor
Input Cable
L1
L
2 L
3
Input Power Connections, 460VAC, Single-Phase
6. Replace the Power Supply cover.
7. Connect the input power cable (or close the main
disconnect switch) to supply power to the system.
B. 208 / 230-Volt units
This power supply includes a factory-installed input
power cable and plug.
1. Check your power source for correct voltage before
plugging in the unit.
2. Connect the input power cable (or close the main dis-
connect switch) to supply power to the system.
CAUTION
The primary power source and power cable must
conform to local electrical code and the recom-
mended circuit protection and wiring requirements
(refer to table in Appendix 1).