Service Manual DCS 400.pdf

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DCS Thyristor Power Converters
for DC drive systems
20 to 1000 A
Service Manual
DCS 400
Thyristor Power Converters
Series
DCS 400
Service Manual
Code: 3ADW 000 131 R0101 Rev A
SM4_E_A.DOC
EFFECTIVE:
SUPERSEDES:
May 17th, 2001
none
2001
ABB Automation Products GmbH. All rights reserved.
DCS 400 Service Manual
Safety Instructions
Overview
This chapter contains safety instructions that must be complied with
during installation, operation and maintenance of the power con-
verter series
DCS 400.
If these instructions are not complied with,
this may result in injuries (perhaps even with fatal consequences) or
in damage to the power converter, the motor and the driven ma-
chine. Before starting with any work whatsoever at or with this unit,
you must read the information given in this chapter.
Warnings provide information on states, which if the specified pro-
cedure for the state concerned is not meticulously complied with
may result in a serious error, in major damage to the unit, in injury
to persons, and even in death.
They are identified by the following symbols:
Danger: High Voltage!
This symbol warns you of
high voltages, which may result in injuries to persons
and/or damage to equipment. Where appropriate, the
text printed adjacent to this symbol describes how
risks of this kind may be avoided.
G
Warnings
G
G
G
All electrical installation and maintenance work on the thyristor
power converter must be carried out by properly qualified staff
who has been thoroughly trained in electrical engineering.
The thyristor power converter and its adjacent units must be
properly earthed by qualified professionals.
You must NEVER perform any work on the thyristor power con-
verter while it is still switched on. First switch the unit off, use a
measuring instrument to make absolutely sure that the power
converter has really been de-energised, and only then you may
start with the work concerned.
Due to external control circuits, there may be dangerously high
voltages present at the thyristor power converter even after the
line voltage has been switched off. So always work at the unit
with appropriate caution! Non-compliance with these instructions
may result in injury (or even death!).
DCS 400 Service Manual
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