Tweco Merlin 6000 Master PS - Manual (Page 22)

INSTALLATION PROCEDURES 3-4 Manual 0-2568
200, 208,
220, or 230
11 12
L3 13
15 14
6 7
L2 8
10 9
1 2
L1 3
5 4
380, 415,
or 460
11 12
L3 13
15 14
6 7
L2 8
10 9
1 2
L1 3
5 4
500, or 575
11 12
L3 13
15 14
6 7
L2 8
10 9
1 2
L1 3
5 4
Busbar Connections For Input Voltages
A-00904
Figure 3-5 Busbar Connections
If necessary, reposition the busbars to correspond to
the available line voltage.
3.08 Primary Power Cable
Connections
WARNING
Disconnect primary power at the source before con-
necting the primary power cable to the power sup-
ply.
The primary power cable must be supplied by the end
user and installed to the Power Supply assembly. Rec-
ommended cable sizes are specified in Appendix 1.
NOTE
Three-phase operation requires a 3-conductor cable
with ground.
1. Route the primary power cable through the strain
relief fitting in the rear panel of the Power Sup-
ply and tighten strain relief screws.
Input Voltage
Terminal Board
L1
L2
L3
Primary Power
Cable
Strain Relief
Fitting
Ground
Connection
Busbars
A-00893
Figure 3-6 Input Voltage Connections
2. Connect the electrical ground wire to the ground
lug on the base of the unit.
WARNING
The electrical ground wire must be connected to
the ground lug in the base of the unit for proper
grounding.
3. Connect the three line leads to the input voltage
terminal board per the following:
• Line 1 to terminal L1.
• Line 2 to terminal L2.
• Line 3 to terminal L3.
4. Tighten all nuts.
3.09 Ground Connections For
Mechanized Applications
NOTE
Refer to Appendix 3 for a block diagram of a typi-
cal mechanized system work and ground cable con-
nections.
A. Electromagnetic Interference (EMI)
Pilot arc initiation generates a certain amount of electro-
magnetic interference (EMI), commonly called RF noise.
This RF noise may interfere with other electronic equip-
ment such as CNC controllers, remote controls, height