15
SECTION 3 INSTALLATION
3.4.2 Primary Power Hookup Procedure
The following procedure explains the proper in-
stallation steps for connecting primary electrical
power to the plasma console.
NOTE: Safety codes specify the power ground
wire be the last connection to break
should the cable be pulled out of the unit.
When preparing the cable for connection,
make the ground wire 6 inches (152mm)
longer than the three primary wires.
1. Ensure input power cable is disconnected
from all electrical sources.
2. Remove right side panel (as viewed from front
of console).
3. Route input power cable through the strain
relief located at the rear panel.
4. Pull input power cable through the strain relief
to allow cable wires sufficient length to con-
nect to main contactor. Tighten strain relief to
ensure input power cable is secured.
5. Connect input power cable ground wire to the
ground lug provided above TB2 (7 position
terminal block).
6. Connect three power leads of input power
cable to terminals located atop the main
contactor. Secure the leads by tightening each
screw.
7. Connect jumper power cables from bottom
of the main contactor to proper input voltage
marked on auto transformer. Unit is factory
set for 575V as shown at the left.
8. Connect jumper on TB2 to proper input volt-
age. This 7 position terminal block jumper is
factory set to 575V.
9. Connect input conductors to line (wall) dis-
connect.
10. Replace side panel (Replace only if all connec-
tions have made --output connections require
this panel to be removed).
200
230
380
415
460
575
200
230
380
415
460
575
200
230
380
415
460
575
200
230
380
415
460
575
K 1
TB 2
PHASE 1
PHASE 2 PHASE 3
TB 1
Ground Connection Input power cable
Main Contactor
7 position
terminal block
Auto transformer
Factory wired
for 575 volts
Input Power Jumper Connection.
Ensure each input power jumper cable is connected to correct input
voltage on autotransformer and on TB2. Factory wired for 575 Volts.
CAUTION