Tweco 152 CutMaster - Manual (Page 24)

CUTMASTER 152
INSTALLATION Manual 0-4987 3-2
B. Connections to Three Phase Input Power
WARNING
Disconnect input power from the power
supply and input cable before attempting
this procedure.
These instructions are for changing the input power and
or cable on the 208/230, 400, 460 VAC Power Supply to
Three - Phase input power.
1. Remove the Power Supply cover per instructions
found in section 5.
2. Disconnect the original input power cable from
the main input contactor and the chassis ground
connection.
3. Loosen the through - hole protector on the back
panel of the power supply. Pull the original
power cable out of the power supply.
4. Using a customer supplied four - conductor input
power cable for the voltage desired, strip back
the insulation on the individual wires.
5. Pass the cable being used through the access
opening in the back panel of the power supply.
Refer to Section 2 for power cable specifications.
CAUTION
The primary power source and power cable
must conform to local electrical code and the
recommended circuit protection and wiring
requirements (refer to table in Section 2).
6. Connect the wires as follows.
• Wires to L1, L2 and L3 input. It does not
matter what order these wires are attached.
See previous illustration and on label in the
power supply.
• Green / Yellow wire to Ground.
7. With a little slack in the wires, tighten the through
- hole protector to secure the power cable.
8. Reinstall the Power Supply cover per instructions
found in section 5.
9. Connect the opposite end of individual wires to
a customer supplied plug or main disconnect.
10. Connect the input power cable (or close the main
disconnect switch) to supply power.
These instructions are for changing the input power and
or cable on the 208/230, 400, 460 VAC Power Supply to
Single - Phase input power.
1. Remove the Power Supply cover per instructions
found in section 5.
2. Disconnect the original input power cable from
the main input contactor and the chassis ground
connection.
3. Loosen the through - hole protector on the back
panel of the power supply. Pull the original
power cable out of the power supply.
4. If the power cable being used is not the factory
- supplied cable, use a three - conductor input
power cable for the voltage desired and strip
back the insulation on the individual wires.
5. Pass the cable being used through the access
opening in the back panel of the power supply.
Refer to Section 2 for power cable specifications.
CAUTION
The primary power source and power cable
must conform to local electrical code and the
recommended circuit protection and wiring
requirements (refer to table in Section 2).
6. Connect the wires as follows.
• Connect Bus Bar Jumpers on the contactor as
shown in prior illustration and on label in the
power supply.
• Green / Yellow wire to Ground.
8. Reinstall the Power Supply cover per instructions
found in section 5.
9. Connect the opposite end of individual wires to
a customer supplied plug or main disconnect.
10. Connect the input power cable (or close the main
disconnect switch) to supply power.