09 connect work cable and pilot and negative leads, 10 ground connections, Connect work cable and pilot and negative leads -7 – Tweco 400 Ultra-Cut(October 2014) User Manual
Page 33: Ground connections -7
ULTRA-CUT 100 XT/200 XT/300 XT/400 XT
Manual 0-5264
INSTALLATION
3-7
3.09 Connect Work Cable and Pilot and Negative Leads
1. Remove the output power cover to the left of the coolant filter at the rear of the power supply. To do this
remove the two screws then lift up and pull away.
2. Route the ends of the work cable, pilot and negative/torch leads upward through the leads strain relief at
the bottom edge of the left rear panel.
3. Refer to the illustration. Connect the leads as shown. Tighten securely. Do not overtighten.
Art # A-11533
Pilot
Work Cable
Torch
+ -
4. Reinstall the cover on the power supply. Snug the hardware securely by hand. Do not overtighten.
3.10 Ground Connections
0 - 10 ft (0 - 3 m) Ideal
20 ft (6 m) Maximum
1/0
Ground Cable
Power Supply
‘Star’
Ground
Earth Ground
Rod
See
Manufacturer
CNC
Device
Torch
Cutting Table
Cutting Machine / Gantry
3/0 Work Cable
Remote Arc
Starter (RAS-1000)
Star Ground on Cutting Table
Note: The gas control module can
be mounted on top of the power
supply.
If it is, it should be grounded
directly to the power supply with
#4 AWG ground, (F).
Any location requires grounding
the power supply to the
‘Star’ ground with the 1/0
Ground Cable (F1).
Gas Control Module
Primary location
#4 AWG
Ground
(F)
Customer supplied
1/0
Ground Cable
(F1)
Art # A-11875
1/0 Ground Cable