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Table of contents
3ADW000195R0501 DCS800 Service Manual e e
Table of contents
Safety instructions 5
What this chapter contains..........................................................................................................5
To which products this chapter applies.......................................................................................5
Usage of warnings and notes .....................................................................................................5
Installation and maintenance work..............................................................................................6
Grounding........................................................................................................................7
Mechanical installation................................................................................................................9
Operation ..................................................................................................................................10
Table of contents 13
Introduction 16
How to use this manual.............................................................................................................16
Contents of this manual ............................................................................................................16
Target group .............................................................................................................................16
Associated publications ............................................................................................................16
Storage and transport ...............................................................................................................17
Name plate and type code........................................................................................................17
Type code .................................................................................................................................18
Current and voltage ratings.......................................................................................................19
Fault Tracing Thyristors 21
Tools .........................................................................................................................................21
For commissioning and fault tracing..............................................................................21
Additionally for service and preventive maintenance ....................................................22
How to detect a faulty thyristor..................................................................................................22
A fuse is blown ..............................................................................................................22
DC-current pulses measured by an oscilloscope..........................................................23
Thyristor diagnosis ........................................................................................................23
Ripple monitor ...............................................................................................................23
How to find a faulty thyristor......................................................................................................24
Converters size D1 to D4 (20...1000 A).........................................................................24
Blown fuses...................................................................................................................24
Converters size D5, D6, and D7 (900...5200 A)............................................................25
Blown fuses...................................................................................................................25
Ripple monitor ...............................................................................................................25
Handling the Semiconductors 27
General Instruction how to handle the Semiconductors ...........................................................27
Exchange of Thyristors for Size D1 to D4 29
Installation of OnBoard bridge and thyristor modules in converters size D1 to D4
(20...1000 A) .............................................................................................................................29
Required Tools..............................................................................................................29
Find faulty thyristor modules .........................................................................................29
Remove faulty thyristor modules...................................................................................30
Install new thyristor modules.........................................................................................34
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