Tweco CE Ultima 150 - Manual (Page 22)

SECTION 3: INSTALLATION 16 Manual 0-2530
3.08 Remote Connections
A. Using the STANDARD (J20) Connector
The J20 connector on the rear panel of the ULTIMA-
150 is factory-wired for convenience. The remote wir-
ing is connected to the TB1 terminal strip on the Logic
Display Board inside the unit, as follows:
TB1 Connection Description
3 & 4 Weld Arc On
12 & 13 Pilot Arc On
19, 20 & 21 Remote Weld Current
1. Connect the remote cable connector to the J20 con-
nector on the rear of the unit labelled STANDARD.
2. If modifications need to be made, see Appendix III,
for Remote Function and Control Signal Assign-
ments.
3. Reinstall Enclosure Cover, if necessary.
B. Using the TB1 Terminal Strip on Logic
Display Board
1. Locate the TB1 terminal strip on the Logic Display
Board inside the unit.
2. Feed the remote cable through the small strain re-
lief on the rear of the unit (beside the STANDARD
connector bucket).
3. Connect the remote cable to the terminal strip per
Appendix III, Remote Function and Signal Assign-
ments.
NOTE
The user cannot weld without closing TB1-3 to
TB1-4.
4. Secure the remote cable on the outside of rear panel.
5. Reinstall Enclosure Cover.
3.09 Filling Coolant Reservoir
The Coolant Reservoir supplies the system with coolant to
cool the torch and torch parts during operation. The torch
is cooled by circulating the coolant from the built-in
recirculator through the torch leads to the torch and back
to the recirculator. The coolant is filtered and cooled be-
fore being returned to the Coolant Reservoir. Coolant level
can be maintained without removing the recirculator from
the ULTIMA-150 Plasma Welding Power Supply. The
maximum capacity of the reservoir is two gallons of cool-
ant.
The Thermal Arc ® Coolant supplied with the ULTIMA-
150 can be used in ambient temperatures down to 10° F
(-12° C). If the ambient temperature will be below 10° F
(-12° C) then Thermal Arc
® Super Coolant should be
used. This coolant can be used in areas where the am-
bient temperature drops to -34° F (-36° C).
WARNING
Never use tap water in place of Thermal Arc ® Torch
Coolant or electrolytic corrosion will occur.
1. Remove the Coolant Filler Cap from the reservoir
at the rear of the ULTIMA-150 Power Supply.
2. Carefully pour enough of the supplied Thermal
Arc ® Torch Coolant into the reservoir to fill it to
within one inch of the top.
NOTE
After operating the system more coolant may need
to be added to fill the torch leads.
3. Add Deionizer Bag to the stainless steel basket lo-
cated inside the Coolant Reservoir.
4. Reinstall the Coolant Reservoir Filler Cap.
WARNING
After operating the ULTIMA-150 Plasma Welding
Power Supply, more coolant may need to be added
to fill the torch leads.