12
3.1.6 Process Control Selector
The Process control selector has three settings,
Stick, TIG and Stick
. The Ironhorse 700VDC
has the same characteristics for both Stick settings. The pipe-welding version has a cellulose
characteristic, allowing 1 inch of arc length when this method of whipping is used.
The TIG position allows Lift Start, which allows contact between material and electrode with no
damage to the electrode.
When the tungsten (wolfram) electrode touches the work piece, 10 Amps of current will flow.
When the electrode is lifted a small distance from the work surface the full welding current (as
set on the Welding Power Control knob) will flow.
When the selector is at the TIG position, the open circuit (no-load) voltage is reduced from 78
Volts to 9 Volts. This feature prevents the tungsten electrode from sticking to the work piece.
3.1.7 Power-On Indicator
Indicates power on/off. The power indicator will blink if any component is overheated. Allow the
welder to cool down. This may take 3 minutes or more depending on which component is
overheated. The following components are temperature monitored
•
Main Transformer
If a 30% duty cycle is exceeded when drawing 400Amps output current, the Main Transformer
could overheat and shut down the welder. If overheating occurs, wait 1 minute before restarting.
This condition can also occur if a 60% duty cycle is exceeded when drawing 300 Amps output.
Wait 3 minutes before restarting.
•
Main Inductor
If welding at 250 Amps for more than 30 minutes without stopping, the Main Inductor will
overheat and shut down the welder. If this occurs, wait 7-8 minutes before restarting.
•
Output Capacitor
When welding at the lower current settings in Range 2, or when arc gouging for long periods, the
Output Capacitor may overheat and shut down the welder. If this occurs, wait 10 minutes before
restarting. The temperature sensor will protect the output capacitor.
•
Input Capacitor
Should one phase be lost when welding with three-phase input power, current to the Input
Capacitor could increase causing it to potentially overheat or be destroyed. Wait 10 minutes
before restarting the welder
•
Fan Motor:
Some operation with restricted airflow will overheat the fan motor. Wait 10
minutes before restarting the welder.
3.1.9 Input Power Cord
The primary cable supplied with the power source has 2 conductors, which split into two 5-foot
long single conductors. Additional power cable length can be provided as an option if requested.
Содержание IRONHORSE 300S
Страница 18: ...5 3 Main Circuit Diagram ...
Страница 19: ...5 4 Front Panel 19 ...
Страница 20: ...5 5 Rear Panel 20 ...
Страница 21: ...5 6 1 Bottom Chassis Drawing with Part Number Reference ...
Страница 22: ...5 6 2 Top Chassis Drawing with Part Number Reference 22 ...
Страница 23: ...5 6 3 Inductor Plate Drawing with Part Number Reference 23 ...