Maintenance and Troubleshooting SR-100i User’s Manual
regulator pressure is adjusted to 85 psi while
gas is flowing through the torch. If the
pressure is adjusted to 85 psi, the torch
interlock pressure switch (PRS1) or associated
wiring may be bad. PRS1 is normally open.
6. If the CON LED illuminates, verify that the
main contactor (CON2) pulls in. If it does not,
CON2 or associated wiring may be bad. If
CON2 pulls in, the auxiliary switch or
associated wiring may be bad.
7. Red D.C. Power light or associated wiring may
be bad.
8. Torch Nozzle lead has a leak or loose fittings.
Contactor making noise
1. Contactor has accumulated dust inside. Take
contactor apart and blow out with compressed
air.
2. Check 24VAC supply for low voltage. 24VAC
can be measured between TB2-7 and TB2-8.
The arc will not transfer to the
workpiece
1. Loose work ground connection.
2. Pierce height too high.
3. Incorrect, damaged, or worn consumables.
No spark between the spark gap
electrodes
1. Improper spark gap. Set the spark gap to .018”
(.46 mm).
2. Worn spark gap electrodes. Clean electrodes
with fine sandpaper and set the gap to .018”
(.46 mm). Replace electrodes that have a
rounded face.
3. Verify that all LED’s illuminate in the proper
order.
4. In mode 0 or 2, if all LED’s illuminate, but the
HF LED does not, replace the logic-regulator
p.c. board.
5. Visually check all terminal connections around
the high frequency transformer and spark gap
assembly.
6. Disconnect the high frequency transformer
TR5 and check for 120 VAC across the supply
leads after a start signal has been received and
the HF LED has illuminated. If 120 VAC is
present, go to step 7. If 120 VAC is not
present, check the continuity in the lines from
P24-1 to TB2-5, from P24-2 to TR5, and from
TR5 to TB2-2. If all lines are good, give the
system a start signal, wait for the HF LED to
illuminate, and check for 120 VAC between
P24-1 on the logic-regulator p.c. board and
TB2-2, then between P24-2 and TB2-2. If
P24-1 reads 120 VAC but P24-2 does not,
replace the logic-regulator p.c. board. Note
that P24 must be plugged in to the logic-
regulator p.c. board to obtain the correct
readings.
7. Check the high frequency transformer TR5
5-10
Содержание SR-100i
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Страница 24: ...Installation SR 100i User s Manual SR 100i Figure 3 2 Power Supply Output Connections 3 4 ...
Страница 27: ...Installation SR 100i User s Manual SR 100i Figure 3 4 Gas Supply Connections 3 7 ...
Страница 37: ...Operation SR 100i User s Manual Figure 4 4 Mild Steel Cutting Chart 30 50 amps 4 9 ...
Страница 38: ...Operation SR 100i User s Manual Figure 4 5 Mild Steel Cutting Chart 75 100 amps 4 10 ...
Страница 39: ...Operation SR 100i User s Manual Figure 4 6 Stainless Steel Cutting Chart 30 50 amps 4 11 ...
Страница 40: ...Operation SR 100i User s Manual Figure 4 7 Stainless Steel Cutting Chart 75 100 amps 4 12 ...
Страница 41: ...Operation SR 100i User s Manual Figure 4 8 Aluminum Cutting Chart 30 50 amps 4 13 ...
Страница 42: ...Operation SR 100i User s Manual Figure 4 9 Aluminum Cutting Chart 75 100 amps 4 14 ...
Страница 59: ...Parts List SR 100i User s Manual Figure 6 1 Control Panel 6 3 ...
Страница 60: ...Parts List SR 100i User s Manual SR 100i Figure 6 2 Rear View Inside 6 4 ...
Страница 61: ...Parts List SR 100i User s Manual Figure 6 3 Base Top View 6 5 ...
Страница 62: ...Parts List SR 100i User s Manual Figure 6 4 Left Side View 6 6 ...
Страница 63: ...Parts List SR 100i User s Manual Figure 6 5 Right Side View 6 7 ...
Страница 64: ...Parts List SR 100i User s Manual SR 100i Figure 6 6 Rear View Outside 6 8 ...
Страница 69: ...Parts List SR 100i User s Manual Chopper P C Board Figure 6 10 Chopper P C Board 6 13 ...
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