32
UC9,
UC10,
UC11
,
UC12
PFC
D9,D10,D19,D20,D29,D30
Diode
Short or open
Q1,Q2, Q5,Q6, Q9,Q10
IGBT
C-E short or open
30K INV Section
Circuit Block
Checked components
Component Type Failure condition
STS
Q40,Q17,Q43,Q21,Q23,Q45,
Q30,Q32,Q33,Q41,Q44,Q46
SCR
A-K Short or open
INV
D38,D41,D40,D47,D58,D57
Diode
Short or open
Q13,Q14,Q15,Q16,Q22,Q18,Q20,Q19,Q25,Q26,Q27,Q28 IGBT
C-E short or open
DC FUSE
F1,F2, F3, F4,F5,F6,F7,F8
Fuse
Open
Power
Semiconductor
Q1,Q2
MOSFET
D-S short or open
D3,D4,D1,D9
Diode
Short or open
U4,U9
Power Control IC
Vcc short to GND
30K BAT FUSE Section
Circuit Block
Checked components
Component Type
Failure condition
BAT I/P Fuse
F1,F2,F3,F4,F5,F6
Fuse
Open
8.2.4.1 30K Major parameters of Rectifier and PFC and SPS section
。
The most likely problems occur on the Rectifier and PFC section including: open fuse, broken IGBT,
broken Diode, broken SCR, and broken IGBT/SCR driver resistor. When checking PFC section, directly
check the IGBT with Resistance probe or the Diode Voltage Droop probe with multimeter.
30K PFC Section
Checked components
Instrument function
Reference
Value
Failed
condition
UC1,UC2,UC3,UC4,UC5,
UC6,UC7,UC8UC9,
UC10,UC11,UC12
(A, K)
Resistance
infinite
Short
(G, K)
Resistance
»
20Ω
Short
R9,R10,R24,R25,R61,R62,R76,R77,R111,R112,
R126,R127
Resistance
»
33Ω
Value change
Q1,Q2, Q5,Q6, Q9,Q10
(E, C)
Diode Voltage Droop
»
0.38V
Short or open
(E, G)
Diode Voltage Droop
»
1.0V
Short or open
(G, E)
Resistance
»
50KΩ
Short or open
R26,R27,R78,R79, R128,R129
Resistance
»
10Ω
Short or open
D9,D10,D19,D20,D29,D30
Diode Voltage Droop
»
0.372V
Short or open
Q16
(S, D)
Diode Voltage Droop
»
0.506V
Short or open
(S, G)
Diode Voltage Droop
»
0.339V
Short or open
(G, S)
Resistance
»
15KΩ
Short or open
U14,U11
Diode Voltage Droop
»
0.509V
Short or open
D75
Diode Voltage Droop
»
0.29V
Short or open
D74
Diode Voltage Droop
»
0.35V
Short or open
Q11,Q12
(S, D)
Diode Voltage Droop
»
0.31V
Short or open
(S, G)
Diode Voltage Droop
infinite
Short or open
(G, S)
Resistance
»
20KΩ
Short or open
Summary of Contents for SBOL50KTIII-3
Page 2: ...2 ...
Page 10: ...10 n 5 Picture of the UPS 30k picture single input dual input ...
Page 11: ...11 30k UPS inner picture 60K picture ...
Page 12: ...12 60K picture 60K unit inner picture ...
Page 13: ...13 Front panel Rear panel Left panel 100K 200K picture ...
Page 14: ...14 Right side panel Top side panel 100K 200K picture ...
Page 38: ...38 HV30KL LV15KL Single Input Mode ...