
Maintenance and Troubleshooting
ADDvantage-32 PLUS ● AC to DC Power Converter
7-35
Figure 7-9. Replacing Power Thyristors and Field Thyristor/Diode
(510 ADC and Below)
RT1
GND
F5
GND1
H
1
H
3
H
2
H
4
X
2
X
1
C
R
2
C
R
1
C
R
4
"+"
CAUTION
CONNECT LEADS AS
SHOWN TO PREVENT
DAMAGE TO UNIT.
A B
CT4
CT1 CT3
C
D F
H
J
K
L
M N
B
A
2
X1 X2 X3
P
CR7 ONLY
CONTROL POWER
TRANSFORMER
F6, F7
FAN
F11
DC CONTACTOR
F1, F2
CR7, CR8
HEAT SINK
THERIMISTOR
POWER THYRISTORS
DC BUS BARS
AC BUS BARS
X1, X2, X3
F3, F4
CURRENT
TRANSFORMERS
CT1, CT3, CT4
L1 L2 L3
F8 F9 F10
A2
A1
K1
CR1, CR2, CR3
POWER THYRISTORS
CR4, CR5, CR6
T1
B1
(OPTIONAL)
REPTHYDIDLAN
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