13-17
TROUBLESHOOTING
SM CKDDCI 2-A.3 GB
5)
Connect the “COM“ side of the tester to the “CAPA+”
terminal of driver and the “V
” side of the tester to “U”,
“V” and “W” of driver, measure the diode voltage.
Voltage should be 0.4~0.8VDC.
6)
Connect the “V
” side of the tester to the “CAPA+”
terminal of driver and the “COM” side of the tester to “U”,
“V” and “W” of driver, measure the diode voltage.
Voltage should be “OL” (Over Load).
7)
Connect the “COM“ side of the tester to the “CAPA-”
terminal of driver and the “V
” side of the tester to “U”,
“V” and “W” of driver, measure the diode voltage.
Voltage should be “OL” (Over Load).
8)
Connect the “V
” side of the tester to the “CAPA-”
terminal of driver and the “COM” side of the tester to “U”,
“V” and “W” of driver, measure the diode voltage.
Voltage should be 0.4~0.8VDC.
Replacing driver -
(14.1.15.2)
13.5.5.3. GC 036 DCR
I
n normal operation the red led in ON continuously and green led is blinking slow (1 time/sec).
Even is that case, there can still be a Hardware problem that prevents the system to perform well
or at all. If no other problem is found, replace the driver.
1) In case green and/or red leds are OFF (one or both):
Check power supply to driver connected well and no burn marks on wiring.
PFC chock is connected well. Correct if needed.
Check PFC Chock (13.5.6). Replace chock if needed.
Check line filter and main fuse (20A). In case fuse is burnt, replace both driver and
filter.
Check fuse on driver (3.15A). In case fuse is burnt, replace driver.
If all is well but still leds are OFF, Replace driver.
Replacing Driver –
(14.1.15.3).
0.5
W
U
CAPA-
L
N
V
CAPA+
OL
W
U
CAPA-
L
N
V
CAPA+
OL
W
U
L
N
V
CAPA-
CAPA+
0.5
W
U
CAPA-
L
N
V
CAPA+
