Contents
DCS 500 / DCS 600 Service Manual
v
VI A
S
ERVICE
M
ANUAL
Safety Instructions
Chapter 1 - Introduction
How to use this manual......................................................................................................... 1-1
Contents of this manual ........................................................................................................ 1-1
Target group ......................................................................................................................... 1-2
Associated publications........................................................................................................ 1-2
Storage and transport ........................................................................................................... 1-2
Rating plate and type code ................................................................................................... 1-2
Chapter 2 - Fault Tracing Thyristors
How to detect, if a thyristor is faulty....................................................................................... 2-1
A fuse is blown .......................................................................................................... 2-1
Ripple monitor ........................................................................................................... 2-1
How to find a faulty thyristor.................................................................................................. 2-2
Converters size C1 and C2/C2b (25...1000 A)........................................................... 2-2
Blown fuses ............................................................................................................... 2-2
Converters size A5, C3 and C4 (900...5150 A) .......................................................... 2-3
Blown fuses ............................................................................................................... 2-3
Ripple monitor ........................................................................................................... 2-3
Chapter 3 - Handling the Semiconductors
General Instruction how to handle the Semiconductors ........................................................ 3-1
Chapter 4 - Exchange of Thyristors for Sizes C1/C2/C2b
Installation of thyristor modules in converters size C1/C2/C2b (25...1000 A) ........................ 4-1
Required Tools .......................................................................................................... 4-1
Remove faulty thyristor modules................................................................................ 4-1
Install new thyristor modules...................................................................................... 4-2
Thyristor module location........................................................................................... 4-3
Module terminals ....................................................................................................... 4-8
Chapter 5 - Exchange of Thyristors for Size A5
Installation of "Disc Type" thyristor in converters size A5 (900...2000 A)............................... 5-1
Required Tools .......................................................................................................... 5-1
Find faulty thyristor .................................................................................................... 5-2
Remove faulty thyristor .............................................................................................. 5-3
Install new thyristor .................................................................................................... 5-4
Chapter 6 - Exchange of Thyristors for Size C3
Installation of "Disc Type" thyristor in converters size C3 (900...2000 A) .............................. 6-1
Required Tools .......................................................................................................... 6-1
Remove faulty thyristor .............................................................................................. 6-2
Find faulty thyristor .................................................................................................... 6-2
3ADW000093R0601_DCS500B/DCS600_Service Manual_e_f
