Thermal Arc 300GTSW Pro-Wave, Руководство по обслуживанию

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pro-wave 300gtsw
6-6
June 21, 2012
6.06 Output Load Test
This test verifies that the output controls are functioning
properly. A clamp-type amperage meter or equivalent
meter capable of reading approximately 300A full-scale
will be needed for this test if a digital meter is not present
in the unit.
CAUTION
Before performing any portion of the procedure
below, make certain the unit is placed in the
initial setup condition as described at the
beginning of this section, (page 6-2).
1. Place the AMPERAGE control in its minimum (fully
counterclockwise) position.
2. Connect the POSITIVE (+) and NEGATIVE (-)
OUTPUT TERMINALS to a piece of metal,
separated by approximately three feet (one meter).
3. Connect the clamp-on amperage meter or
equivalent to the output loop between the
POSITIVE (+) and NEGATIVE (-) OUTPUT
TERMINALS.
4. Place the power supply MAIN CIRCUIT BREAKER
on the rear of the unit to the ON position. After
five (5) seconds, the amperage meter will indicate
approximately 5 Amps.
5. Slowly turn the AMPERAGE control clockwise
to the maximum of the power supply, then
counterclockwise, back to 5 Amps as the control
returns to its minimum position. The amperage
meter should indicate a continuous range of
Amperes between the 5 Amps minimum and the
300 Amps maximum of the power supply.
6. Place the power supply MAIN CIRCUIT BREAKER
on the rear of the unit to the OFF position.
7. Remove the dead short between the OUTPUT
TERMINALS.
This completes the output load test. If the results of any
step differ from those above, then refer to the various test
procedures in this section to isolate the problem. If the
results are as expected, then the power supply is giving
the proper output.
6.07 LIFT START Circuit Test
This test verifies proper operation of the LIFT START
circuit. A clamp-type amperage meter or equivalent meter
capable of reading approximately 20A full-scale, and a
digital voltmeter capable of indicating 20VDC full-scale
will be needed for this test.
CAUTION
Before performing any portion of the procedure
below, make certain the unit is placed in the
initial setup condition previously described,
(page 6-2).
1. Make sure the MAIN CIRCUIT BREAKER (MCB)
is turned OFF.
2. Set the PROCESS SELECTOR switch to LIFT
START TIG mode.
3. Connect a digital voltmeter between the POSITIVE
(+) and NEGATIVE (-) OUTPUT TERMINALS of the
unit. Set the meter to indicate Volts DC.
4. Connect a jumper between pins 2 and 3 of the
REMOTE 8 connector, or if a remote contactor is
connected, close it. (Ensure that the remote device
is not faulty.)
5. Place the power supply MCB on the rear of the
unit to the ON position. After five (5) seconds, the
voltmeter will indicate approximately 6 volts open
circuit.
6. Turn off the power supply MCB.
7. Connect the POSITIVE (+) and NEGATIVE (-)
OUTPUT TERMINALS to a piece of metal,
separated by approximately three feet (one meter).
8. Connect a jumper between pins 2 and 3 of the
REMOTE 8 connector, or if a remote contactor is
connected, close it.
9. Place the power supply MCB on the rear of the
unit to the ON position. After five (5) seconds, the
voltmeter will indicate approximately 1 volt.
10. Turn off the power supply MCB.
11. Connect the clamp on the amperage meter
or equivalent to the output loop between the
POSITIVE (+) and NEGATIVE (-) OUTPUT
TERMINALS.