Thermal Dynamics PAK 200, Operating Manual

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PAK 200
OPERATION 4-6 Manual
3. Check the AC lamp. If lamp is ON, AC input power
is present in the power supply. Within 4 seconds
of the AC lamp illuminating there will be a series of
flashes from the four operation status lamps to show
the firmware revision in use. This will be a two part
indication. An example would be two flashes followed
by a short pause then four flashes then a longer
pause. This would indicate firmware revision 2.4. If
there is a third group diplayed, it is for Engineering
Development only and not for customer use without
written agreement from Thermadyne. This sequence
of AC lamp then firmware revision status will happen
at every power up.
Circuitry in the power supply monitors the status of
various conditions. If the circuitry detects a situa-
tion requiring operator attention, the status lamp on
the control panel flashes a 2-part code to indicate a
code group and then a particular condition within the
group. After 4 seconds, the sequence repeats.
Example: Lamp flashes 4 times; the condition is in
group 4. After a .2 second delay, the lamp blinks 3
times; the status code is 4-3. After a 4-second delay,
the lamp repeats the sequence until the condition is
corrected.
Some conditions can be active indefinitely, while
others are momentary. The power supply latches
momentary conditions; some momentary errors can
shut down the system. The lamp may show multiple
conditions in sequence; it is important to recognize
all possible conditions that may be displayed. The
Error Code section provides explanations of status
codes.
4. Place RUN/SET switch to SET mode.
a. Gases flow to set pressures.
5. Place RUN/SET switch to RUN mode.
a. Gas flow stops.
6. Move torch within transfer distance of work piece.
7. Protect eyes and start torch.
a. Power supply enabled. DC lamp turns ON..
b. Gas pre-flows starts.
8. Wait for gas pre-flow to complete:
a. Pilot arc is established.
9. Main arc transfers to the workpiece.
a. Pilot arc shuts off.
10. Complete cutting operation.
11. Stop the torch.
a. Main arc stops.
12. Gas will flow briefly (‘post-flow’).
a. Gas solenoid closes; gas flow stops:
13. Set the ON/OFF power switch on the front panel of
the unit to OFF.
a. AC Power lamp turns OFF.
b. Fan and pump turn OFF.
14. Place the main power disconnect to open.
a. Main AC power is removed from the system.
4.06 Operational Suggestions
1. Wait five minutes before setting the ON/OFF switch
to OFF after operation. This allows the cooling fan
to run