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OM-275099 Page 13
4-5.
Duty Cycle And Overheating For Maxstar 161STL And STH Models
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, output stops, the
Overtemperature Light comes On,
Over Temp is displayed, and the
cooling fan runs. Wait fifteen min-
utes for unit to cool. Reduce amper-
age or duty cycle before starting to
weld again.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
0
50
100
150
200
250
10
20
30
40
50
60
70
80
90
100
% Duty Cycle
Output Amperes
Stick And TIG 240 V
TIG 120 V
Stick 120 V
4-6.
Static Characteristics
The static (output) characteristics of the welding power source can be described as drooping during the SMAW and GTAW processes. Static
characteristics are also affected by control settings (including software), electrode, shielding gas, weldment material, and other factors. Contact
the factory for specific information on the static characteristics of the welding power source.
4-7.
Remote 6 Receptacle Information (STL And STH Models Only)
Ref. 805575-A
6
Socket
Socket Information
15 VOLTS DC
OUTPUT
CONTACTOR
1
Contactor c15 volts DC.
2
Contact closure to 1 completes contactor control
circuit and enables output when Lift-Arc TIG re-
mote is selected.
REMOTE
OUTPUT
CONTROL
3
Output to remote control; +10 volts DC output to
remote control.
4
0 to +10 volts DC input command signal from
remote control.
5
Remote control circuit common.
CHASSIS
6
Chassis common.
Summary of Contents for Maxstar 161 S
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