Thermal Dynamics CUTMASTER 60i Service Manual page 31

Connect Work Cable
Clamp the work cable to the workpiece or cutting table. The area must be free from oil, paint and rust. Connect
only to the main part of the workpiece; do not connect to the part to be cut off.
Power ON
Place the Power Supply ON / OFF switch to the ON (right) position. AC indicator
The Control Board performs several tests to determine the system is ready to operate. During the self-tests the
digital display first shows
decimals. 1.1.0 is an example of a production released code revision that may be displayed.
Next displayed is the "checksum" a combination of letters and numbers that are unique to the firmware revi-
sion. These are used by service personal to determine if the firmware has been corrupted.
If there are no issues detected the output current setting will be displayed with the letter "A" to the right, show-
ing the output current setting. Should a problem be detected the fault code in the format Exxx will display and
the "A" will not be illuminated. Refer to Section 5.04 for fault code explanations.
Gas indicator turns ON if there is sufficient gas pressure for power supply operation and the cooling
fan turns ON. (90 - 125 PSI / 6.2 - 8.6 bar)
The cooling fan will turn ON as soon as the unit is turned ON. After a short amount of time the fan
switches to low speed. The fan will return to high speed as soon as the torch switch (Start Signal) is ac-
tivated or if the unit is turned OFF, then turned ON again. If an over temperature condition occurs, the
fan will continue to run at high speed while the condition exists and for a five (5) minute period once
the condition is cleared.
Manual 0-5475
Art # A-04509
(revision) followed by the firmware revision number which includes
NOTE!
Minimum pressure for power supply
operation is lower than minimum for torch
operation.
OPERATION
CUTMASTER 60i
turns ON.
4-5