Specifications

ENGLISH
OM-2242 Page 9
3-6. Remote 6 Receptacle Information
6
Socket Socket Information
15 VOLTS DC
1 Contactor control +13.8 volts DC.
15 VOLTS DC
OUTPUT
CONTACTOR
2 Contact closure to 1 completes contactor control
circuit and enables output when Lift-Arc TIG re-
mote is selected.
REMOTE
3 Output to remote control; +10 volts DC output to
remote control.
REMOTE
OUTPUT
CONTROL
4 0 to +10 volts DC input command signal from
remote control.
Ref. 803 351-C
5 Remote control circuit common.
CHASSIS
6 Chassis common.
SECTION 4 − OPERATION
1 Ready Light (LED)
Light comes on approximately two seconds af-
ter power switch is placed in On (I) position if
Lift-Arc On or Stick has been selected. If TIG
Impulse is selected, ready light comes on only
after output is enabled. The light indicates that
the unit is energized and ready for welding. A
flashing light indicates unit is not ready, or that
there is a functional error.
 The fan motor is thermostatically
controlled.
2 High Temperature Light (LED)
Light comes on if unit overheats. Once unit has
cooled down, welding can resume. If this light
flashes, take unit to an Authorized Service
Agent.
3 Amperage Adjustment Control
This control adjusts welding amperage.
4 Process Select Switch
See Section 4-2.
5 Positive Weld Output Receptacle
For Stick welding, connect electrode cable to
this receptacle. For TIG welding, connect work
cable to this receptacle.
6 Negative Weld Output Receptacle
For Stick welding, connect work cable to this
receptacle. For TIG welding, connect torch
cable to this receptacle.
7 Remote Receptacle
For TIG Impulse or Lift-Arc TIG, output may be
adjusted from min to max of the front panel set-
ting with a remote control.
8 Power Switch
Place switch in On (I) or Off (0) position as
needed.
4-1. Front Panel Controls
Ref. 803 375 / 208 547-A
7
5 6
4
8
3
2
1
Maxstar 150 STHMaxstar 150 STH