R&D – SERVICE MANUAL DT0488
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Index
1.
GENERAL ITEMS ......................................................................................................4
1.1
INTRODUCTION...................................................................................................4
1.1.1
GENERAL FAULT IDENTIFICATION PROCEDURE ...................................4
1.2
TOOLS..................................................................................................................5
1.2.1
PORTABLE PC WITH SOFTWARE .............................................................5
1.2.2
OSCILLOSCOPE .........................................................................................5
1.2.3
DIGITAL MULTIMETER (DSM) ....................................................................5
1.2.4
DISCHARGING RESISTOR .........................................................................5
2
UPS COMPONENTS RECOGNIZING .......................................................................6
2.1
UPS CLOSED .......................................................................................................6
2.2
INNER VIEW WITH SAFETY COVER REMOVED ...............................................7
2.3
REAR UPS DESCRIPTION ..................................................................................8
2.4
UPS-10-15KVA ELECTRONIC PARTS LAYOUT .................................................9
2.5
UPS-20-30KVA ELECTRONIC PARTS LAYOUT ...............................................10
2.6
UPS-10-15KVA BOARDS ..................................................................................11
2.7
UPS-20-30KVA BOARDS ..................................................................................11
2.8
BOARDS LAYOUT..............................................................................................12
2.8.1
UPS-10-15KVA POWER INTERFACE BOARD COMPONENT LAYOUT..12
2.8.2
UPS-20-30KVA POWER INTERFACE BOARD COMPONENT LAYOUT..13
2.8.3
CS0150 UPS-10-15KVA UPS-20-30KVA CONTROL BOARD...................14
2.8.4
CS0153 UPS-10-15KVA UPS-20-30KVA POWER SUPPLY BOARD........15
2.8.5
CS0098 RELAY & COMUNICATION BOARD ............................................16
2.8.6
SNMP COMUNICATION BOARD...............................................................16
2.8.7
TERMINAL BLOCKS ..................................................................................17
3
TROUBLESHOOTING .............................................................................................18
3.1
POWER FUSE ....................................................................................................18
3.1.1
UPS-10-15KVA...........................................................................................18
3.1.2
UPS-20-30KVA...........................................................................................19
3.2
CHECK ALL PFC & INVERTER OUT IGBTS. ....................................................20
3.2.1
UPS-10-15KVA...........................................................................................20
3.2.2
UPS-20-30KVA...........................................................................................21
3.2.3
CHECK AUXILIARY POWER SUPPLY CONTROL BOARD......................23
3.2.4
LED STATUS .............................................................................................25
3.2.5
CHECK CONTROL BOARD .......................................................................26
3.2.6
CHECK POWER SUPPLY VOLTAGE........................................................26
3.3
POWER INTERFACE UPS-10-15KVA BOARD..................................................27
3.4
POWER INTERFACE UPS-20-30KVA BOARDS (CS0151) ...............................29
4
PC BASED CHECKS AND SETTINGS ...................................................................31
5
ELECTRICAL DIAGRAM.........................................................................................40
5.1
PCB ELECTRICAL DIAGRAM INDEX ................................................................40
5.1.1
DE1237 UPS 10-15KVA GENERAL DIAGRAM .........................................41
5.1.2
DE1112 UPS 20-30KVA GENERAL DIAGRAM .........................................43
5.1.3
DE0098 RELAY & COMMUNICATION BOARD .........................................46
5.1.4
DE0138 TEMPERATURE SENSOR PCB ..................................................47
