Lincoln Electric FlexCut 200 Service Manual page 43

LINCOLN ELECTRIC
DESCRIPTION
DIODE DROP TEST
DIODE DROP TEST
DIODE DROP TEST
DIODE DROP TEST
DIODE DROP TEST
DIODE DROP TEST
DIODE DROP TEST
DIODE DROP TEST
NEGATIVE
VOLTAGE
FEEDBACK
POSITIVE
VOLTAGE
FEEDBACK
LED # COLOR
1, A5 GREEN/RED
1 GREEN
2 GREEN
3 GREEN
GREEN
4
GREEN
5 GREEN
6 GREEN
7 GREEN
Table F.6 – Switch board diode drop and resistance tests
TEST POINT
(POS)
B209 (+)
B204 (+)
B209 (+)
B201 (+)
B207 (+)
B204 (+)
B207 (+)
B201 (+)
PLUG J23 PIN 11
(LEAD 802)
TERMINAL B3
PLUG J23 PIN 5
ON THE PILOT
(LEAD 806)
Table F.7 – Switch board LED functions
FUNCTION
SYSTEM STATUS LED
+15V DC POWER SUPPLY "OK"
+5V CAN POWER SUPPLY "OK"
MICRO STATUS "OK"
INPUT CAP VOLTAGE BLEEDER
HIGH VOLTAGE PRESENT WHEN ILLUMINATED
FAN HAS BEEN ENABLED
FPGA STATUS LED
COOLANT ENABLE SIGNAL
TEST POINT EXPECTED READING
(NEG)
B204 (–)
B209 (–)
B201 (–)
B209 (–)
B204 (–)
B207 (–)
B201 (–)
B207 (–)
ELECTRODE VERY LOW RESISTANCE
STUD (LESS THAN ONE OHM)
VERY LOW RESISTANCE
(LESS THAN ONE OHM)
BOARD
FlexCut® 200 Service Manual
MACHINE "OFF" NO
OL
INPUT POWER APPLIED
MACHINE "OFF" NO
.390 VDC
INPUT POWER APPLIED
MACHINE "OFF" NO
OL
INPUT POWER APPLIED
MACHINE "OFF" NO
.390 VDC
INPUT POWER APPLIED
MACHINE "OFF" NO
.325 VDC
INPUT POWER APPLIED
MACHINE "OFF" NO
OL
INPUT POWER APPLIED
MACHINE "OFF" NO
.390 VDC
INPUT POWER APPLIED
MACHINE "OFF" NO
OL
INPUT POWER APPLIED
MACHINE "OFF" NO
INPUT POWER APPLIED
MACHINE "OFF" NO
INPUT POWER APPLIED
CONDITION
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