Voltronic Power Axpert MEX-1500, Руководство по обслуживанию

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Axpert MEX-1500/ MEX-3000 Service manual
20
Functional
block
Checked components Instruction function Reference value Failed status
DC-DC
Converter
Fuse F1,F2,F3 Resistance 0.15 ohm short or open
MOSFET(IRFB3206
or IRLB8314)
Q11,Q17,Q20,Q24
Q38,Q21,Q22,Q63
Q13,Q18,Q23,Q35
Q40,Q26,Q25,Q39
Resistance
218k DS short or open
230k GD short or open
11.7k GS short or open
Converter
IGBT(STGW45HF60)
Q27,Q28,Q29,Q30 Resistance
392k CE short or open
182k GC short or open
23ohm GE short or open
Resistance
R41,R59,R70,R111
R80,R78,R75,R120
R52,R62,R81,R115
R93,R92,R87,R119
Resistance
22 ohm
short or open
DC-AC
Inverter
IGBT(4063DPBF) QA1,QB2,QC1,QD2 Resistance
206K CE short or open
237K GC short or open
46K GE short or open
Resistance R48,R144,R137,R140 Resistance 47 ohm short or open
Photo-coupler U1,U2,U3,U4 Resistance (pin2
– pin 3) 5.4K
short or open
Charger
BUCK
IGBT(STGW45HF60)
Q31 Resistance
198K CE
short or open
247K GC
22K GE
Photo-coupler U12 Resistance (pin2
– pin 3) 5.4K
short or open
Diode (RHRP1560 or
RHRP860)
D13 Voltage
0.38V K-A short or open
SPS
Control IC UC3845 Resistance >4K PIN5-PIN7 short or open
Diode D70,D67,D54,D53 Resistance
>4K short or open
MPPT
MOSFET Q1,Q2,Q3,Q5,Q6,Q7 Resistance
83K DS short or open
270K GD short or open
49K GS short or open
MOSFET Q27,Q37 Resistance
>1M DS short or open
377K GD short or open
100K GS short or open
Op Amp U2 PIN8-PIN4 Resistance 5.2K short or open
DSP U7 PIN33-PIN35 Resistance >0.4K short or open