ABB DCS800, Руководство по установке и запуску

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9
Basic Selection
3ADW000197R0101 DCS800-R Sel e a
Drive´s design conditions
It is intended to install the kit into the existing drive cabinet. The following drive equip-
ment will be reused and should therefore be in good condition:
-
Check all parts in the AC supply like main disconnecting switch with fuses or main
contactor or similar for good condition.
-
Check the thyristor bridge itself (fixing devices, press clamps for thyristor mounting,
etc.) with cooling equipment for good condition.
-
If a
Rebuild
kit is used for the armature supply the existing field supply can be re-
used or upgraded too.
-
If the field supply will be upgraded one of these can be used:
SDCS-FEX-425-internal
(built in; 1 or 3 phase)
DCF803-0035 (external; 1 or 3 phase)
DCF803-0050 / ...4-0050 (external; 1 phase)
DCS800-S0x-xxxx-05 (external; 3 phase)
-
If the old field supply will be reused check the overall strategy concerning
monitoring, fault tracing and overall control and performance of the drive. Ei-
ther a binary or an analogue signal should be available indicating “field supply
equipment o.k.”. In case this signal is not available galvanic isolated then it
should be made potentially free for safety reasons. If the drive should also be
used in the field weakening range, an analogue signal, representing the actual
field current, is highly recommended. It will be used for monitoring and fault in-
dications generated within the
Rebuild
kit´s software.
-
Depending on the old control structure an analogue tacho generator can be re-
used. A pulse generator can only be (re)used if it generates a pulse train as an
output signal (see
Hardware Manual ).
-
The
Rebuild
kit expects an armature current feedback signal for the current control
loop. This signal normally is taken from two current transformers on the a.c. side of
the thyristor bridge. The current transformers shall give 0.5 - 0.85 A, which corre-
sponds to the nominal current of the thyristor bridge (other solutions on request).
-
A 115V or 230 V AC supply for the Rebuild kit´s electronics is needed.
Conditions caused by the application
It has to be checked if the selected
Rebuild
kit type can handle the application of the
existing drive. As long as the existing one was used in a 6 pulse bridge configuration,
there is no limitation.
- If the existing bridge has been used in a configuration different to 6-pulse , addi-
tional engineering is needed. It should be checked at first, if a standard converter
DCS800-S0x can be used for such a configuration. Most likely the DCS800-R0x
can be designed similar as with a standard converter.
- There are drives used in the past in a configuration sometimes named MASTER -
FOLLOWER or MASTER - SLAVE or similar. In all these applications, one drive
had generated references or commands for the second, third etc. The
Rebuild
kit is
basically prepared for those configurations; the final wiring may be different. For
more details, please refer to the documentation.
- If the existing converter has been used in a non motor application most often a pre-
pared solution is not available, but most often an engineered solution can be found.
Please contact your local ABB engineering organization.