Victor CUTMASTER 102, Руководство по обслуживанию

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CUTMASTER 102
Manual 0-4998 SERVICE
5-9
This completes the Pilot Arc Test. If the above are all correct
then proceed to the next section "G, Main Arc and Controls
Test". If the unit does not function as stated above, then note
the symptom and proceed to Section "5.08, Pilot Arc Problems".
G. Main Arc and Controls Test
Connect Work Cable to the work piece. Set CURRENT
CONTROL POTENTIOMETER to maximum. Provide a
START signal to establish a pilot arc. Bring torch to within
1/8” – 3/8” of the work piece to establish main cutting arc.
• Main Cutting Arc Establishes
• On PCB 1 D59 turns OFF and D78 turns ON
1. Clamp DC ammeter around the Work Cable. Output will
be 100 amps.
2. While cutting, adjust the CURRENT CONTROL POTEN -
TIOMETER from maximum setting to minimum setting.
• Current adjusts from 100 amps down to 20 amps
3. Set the CURRENT CONTROL POTENTIOMETER to
maximum position.
• Current adjusts from 30 amps up to 100 amps
4. While cutting, touch the tip of the torch to the work
piece. This is called Drag Mode.
For Hand and Machine Torches:
• Tip Saver circuit will activate, current drops to 60
amps.
For Automation Torches:
• The arc will shut OFF, the FAULT indicator and the 85
PSI LED will flash at 5 cycles per second. To reset,
lift tip OFF the work piece, remove and re-apply the
START signal and go to step 6.
5. Lift tip OFF the plate approximately 1/4” (6 mm).
• Tip Saver circuit deactivates, current goes back to
100 amps
6. While cutting keep the torch switch closed, bring the
torch OFF the edge of the material.
• Cutting arc extinguishes
• Gas solenoid closes
• Gas flow stops momentarily then restarts when
solenoid opens
• Pilot arc ignites
7. Open the torch switch
• DC LED turns OFF
After 20 second post flow time
• Gas solenoid closes
• Gas flow stops
8. Set the FUNCTION CONTROL SWITCH to RAPID AUTO
RESTART mode.
9. Provide a START signal to establish a pilot arc. Bring
torch to within 1/8” – 3/8” of the work piece to establish
main cutting arc.
10. While cutting keep the torch switch closed and bring
the torch OFF the edge of the material.
• Pilot Arc re-ignites immediately
11. Open the torch switch
• DC LED turns OFF
After 20 second post flow time
• Gas solenoid closes
• Gas flow stops
For Automation Torches - Skip steps 12 & 13
12. Set the FUNCTION CONTROL SWITCH to LATCH mode
13. Start a cut, and remove the START signal.
• Main cutting arc will remain ON until the torch is
lifted away from the plate approximately ¾” (19
mm) or until the torch is brought OFF the edge of
the metal
Once the arc has extinguished
• DC LED turns OFF
After 20 second post flow time
• Gas solenoid closes
• Gas flow stops
• Ten (10) minutes after the Start signal is removed,
the cooling fans turn OFF.
This completes the Main Arc and Controls Test. If the above
are all correct then proceed to the next section "H. CNC Inter -
face Test." If the unit does not function as stated above, then
note the symptom and proceed to Section "5.09, Main Arc and
Controls Problems".
H. CNC INTERFACE TEST
If the unit has one of the two factory supplied options for
CNC interface installed, proceed with this section, other-
wise the tests are complete.
1. Connect an ohmmeter between CNC connector (Pins
12& 14 (OK-TO-MOVE signal). Position the torch to
pilot. Check the OK-TO-MOVE signal by connecting a
jumper between CNC connector pins 3 & 4 (START)
• Pilot arc is established