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Thermal Dynamics CUTMASTER Service Manual

Thermal Dynamics CUTMASTER
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CUTMASTER 40MM
SERVICE 5-10 Manual 0-5085
F. Pilot Arc Test
There are three types of START signals which can be
used to begin system operation:
1. Hand Torch - Operator switch mounted on
the torch handle.
2. Machine torch or Automation torch:
A. Hand held pendant switch
B. CNC cable interfaced to controller.
1. Provide a START signal to establish a pilot arc
and note the following
• CoolingfansMOT1-3turnON.
• Gassolenoidopens
• Gasows
• After twosecondsthe gassolenoid closes
and gas stops flowing momentarily, then gas
solenoid re-opens and gas resumes flowing
• DCLEDcomesON
• Pilotarcisestablished
2. Remove the START signal and not the follow-
ing
• Gascontinuestoow
• DCLEDgoesOFF
After 20 second post flow time
• Gassolenoidcloses
• Gasowstops
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, 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. Out-
put will be 120 amps.
2. While cutting, adjust the CURRENT CONTROL
POTENTIOMETER from maximum setting to
minimum setting.
• Currentadjusts from120 ampsdown to30
amps
3. Set the CURRENT CONTROL POTENTIOM-
ETER to maximum position.
Current adjustsfrom30 ampsup to120
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 120 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ow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

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Thermal Dynamics CUTMASTER Specifications

General IconGeneral
BrandThermal Dynamics
ModelCUTMASTER
CategoryWelding System
LanguageEnglish

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