Tweco 400 Ultra-Cut(March 2013) - Manual (Page 48)

INSTALLATION 3-22 Manual No. 0-5163
ULTRA-CUT 400
3.13 Height Control Connections
The terminal strip has Arc Volts (-) connection to power supply negative output TORCH terminal, Arc Volts (+)
connection to power supply positive output WORK terminal. These are for a height control that requires connec-
tion to the full non-divided arc voltage. Also available on the terminal strip are 120VAC (120,0) and 24 VAC (24,
0). Note that the two 0’s are not common. The allowable current draw is 100ma @ 120VAC and 1Amp @ 24 VAC.
Art # A-09622
4
NOTE
There is also a hole added in the rear panel above the J55-GCM receptacle for customer wiring. This, rather than
the one in the CCM will be the preferred place for customer added wiring (and strain relief) for connections to
height controls, etc..
3.14 HE400 COOLER
Used in series with the existing cooling system of the UltraCut series power supplies, the HE400 Cooler provides
necessary additional water cooling for the torch head when cutting at over 300amps. The HE400 operates indepen-
dently of the UltraCut pump and fans therefore it can start at any time.
!
WARNING
Do not disassemble the Cooler with the power applied or the coolant flowing. Dangerous 220 AC voltages and high
pressure liquid are present.