Tweco CE Ultima 150 - Manual (Page 24)

SECTION 4: OPERATION 18 Manual 0-2530
10. Status Indicator Lights Detail
COOL PILOT DC GAS TEMP AC
A-00823
Figure 4-3 Status Lights
a. AC Power Indicator
GREEN light indicates when AC power is applied
and okay. No light indicates no AC power.
b. TEMP Indicator
GREEN light indicates all temperatures are okay.
RED light indicates the coolant temperature or
power supply temperature is too high. (The fan/
motor/recirculator pump remains on for system
and coolant cool down. Pilot Arc is disabled.
c. GAS Indicator
GREEN light indicates when plasma and shield
gas pressures are okay. No light indicates there is
insufficient gas pressure or gas connection.
d. COOL Indicator
GREEN light indicates the conductivity of the cool-
ant is okay. RED light indicates the conductivity
level in the coolant is too high and requires chang-
ing.
RED-GREEN blinking light indicates the coolant
recirculator pump has shut down due to inadequate
flow or low coolant levels.
NOTE
By interfacing the power supply into TB1, the power
supply can be deactivated when the coolant conduc-
tivity level is too high. (see Appendix III, Remote
Wiring)
e. PILOT Arc Indicator
GREEN light indicates the pilot arc is enabled.
f. DC Indicator
GREEN light indicates the weld signal is enabled.
11. Weld CURRENT Adjust
This control adjusts between either 0.5 to 15 amps or
5 to 150 amps depending on setting of the RANGE
Switch. This control is functional only when the
REMOTE/PANEL switch is set to the PANEL posi-
tion.
12. Current LIMIT
Allows setting the maximum current output of each
range for torch protection or improved current resolu-
tion control. Single turn, accessible through a hole in
the front panel. The Current LIMIT pot is nonfunc-
tional when using remote analog voltage input con-
trol/signal.
13. RANGE Switch
This switch sets main weld current range to 5-150
amps (High), or 0.5-15 amps (Low).
14. PANEL/REMOTE Switch
This is a two-position switch. In the PANEL position,
weld current is adjusted by the front panel pot. Pre-
view with Weld Current PREVIEW switch.
In the REMOTE position, the front panel pot is non-
functional and the current must be controlled from an
external control device via J20 or interface to TB1. The
remote device must be compatible with Ultima-150
current control circuit. Current PREVIEW is opera-
tional.