Thermal Dynamics Cutmaster 82 User Manual

cutmaster 82
SERVICE 5-10 Manual 0-4980
4. Turn FUNCTION CONTROL SWITCH to RUN
position
• Solenoid turns off, gas stops flowing (pressure
display may increase slightly when gas is not
flowing)
This completes the Main Input and Internal Power Test.
If the above are all correct then proceed to the next section
"F. Pilot Arc Test". If the unit does not function as stated
above, then note the symptom and proceed to Section
"5.07, Main Input and Internal Power Problems".
F. Pilot Arc Test
1. Activate or depress the torch switch (Activate
START signal) to establish a pilot arc and note
the following
• Gas solenoid opens
• Gas flows
• 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. Open the torch switch (Remote Pendant switch
or remove CNC start signal)
• Gas continues to flow
• DC LED goes off
After 20 second post flow time
• Gas solenoid closes
• Gas flow 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, Close torch
switch (Pendant switch or activate CNC Start) to es-
tablish 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 Main Pcb D59 turns off and D78 turns
on
1. Clamp DC ammeter around the work cable. Out-
put will be 80 amps.
2. While cutting, adjust the CURRENT CONTROL
POTENTIOMETER from maximum setting to
minimum setting.
• Current adjusts from 80amps down to 20
amps
3. Set the CURRENT CONTROL POTENTIOM-
ETER to maximum position.
• Current adjusts from 20 amps up to 80 amps
4. While cutting, touch the tip of the torch to the
work piece, This is called Drag Mode.
• Tip Saver circuit will activate, current drops
to 60 amps.
5. Lift tip off the plate approx 1/4”
• Tip Saver circuit deactivates, current goes back
to 80 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.

Thermal Dynamics Cutmaster 82 Specifications

General

Brand	Thermal Dynamics
Model	Cutmaster 82
Category	Welding System
Language	English