Tweco 500SP PowerMaster Automation - Manual (Page 28)

POWERMASTER 400SP, 500SP AUTOMATION
3-4 March 16, 2007
!
WARNING
Never connect the safety ground screw to
one of the three line phases. This would
represent a serious electrical shock
hazard. The wiring to this machine should
be performed by a qualified person only.
A. Input Power Conductors (Customer Supplied
Cord)
Select size of conductors using table. Conductors
must comply with national, state, and local
electrical codes. If applicable, use lugs of proper
amperage capacity and correct hole size.
B. Welding Power Source Input Power Connections
Remove the side panel next to the strain relief.
Route conductors (cord) through strain relief and
tighten screws.
Connect input conductors as shown in illustration.
Connect green or green/yellow grounding
conductor to welding power supply grounding
terminal first.
Then connect input conductors L1, L2, and L3 to
welding power supply line terminals.
Reinstall side panel onto welding power supply.
C. Turn the Line Disconnect Switch off
D. Connect the green or green/yellow-grounding
conductor to the Line Disconnect Switch ground
terminal first.
E. Connect input conductors L1, L2, and L3 to the
Line Disconnect Switch terminals.
F. Select type and size of over-current protection
using table (fused Line Disconnect Switch shown).
G. Close and secure door on Line Disconnect Switch.
H. Remove lockout/tagout device, and place switch
in the On position.
GND/PE GND/PE
L1 L1
L2 L2
L3
L3
Art # A-07858
Black
White
Red
Green & Yellow
L1
L2
L3