Tweco 6000GST Merlin Plasma Cutting CE Slave Power Supply - Manual (Page 21)

Manual 0-2653 3-3 INSTALLATION PROCEDURES
3. Pull the top of the Left Side Panel out and then lift up to
remove the panel from the Power Supply.
3.06 Checking Input Connections
The Power Supply is wired to use input voltages of 380/415
VAC. Internal busbars must be checked on the input voltage
terminal board to verify proper installation.
1. Locate the input voltage terminal board on the left side
of the power supply.
Input Voltage
Terminal Board
L1
L2
L3
Busbars
A-01091
Extra Busbar
Storage Location
Figure 3-3 Input Voltage Terminal Board Location
NOTE
Extra busbars are attached (stored) to the top
side of the power transformer assembly.
2. Check the busbar configuration on the input voltage
terminal board . The busbar configuration must corre-
spond with the available line voltage per the following
figure and the label inside the unit:
11 12
L3 13
15 14
6 7
L2 8
10 9
1 2
L1 3
5 4
Busbar Connections
For Input Voltage
Of 380/415 VAC
A-01090
Figure 3-4 Busbar Connections
If necessary, reposition the busbars to correspond to the
available line voltage.
3.07 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.