ABB DCS800, Руководство по установке и запуску

Страница: 63 / 66

61
Start-up
3ADW000197R0101 DCS800-R Sel e a
Mounting the Kit
When starting the installation work make sure the equipment is disconnected from
the power supply and checked for safe condition! The figures within chapter
Instal-
lation show all the components needed for the different configurations possible.
Use this drawing as a basic guideline which fits the best to the actual power part
depending on the number of parallel thyristors and the configuration (with / without
SDCS-REB-3). Mounting the boards can be subdivided into 3 steps:
-
Select a place for the SDCS-PIN-48 board(s) as close as possible beside the
thyristors. When fixing the board at the selected place make sure it´s conduc-
tive supports / card holder have good metal contact to the cubicle´s frame. This
frame by itself has to be grounded.
-
Select a place for the SDCS-PIN-51 (and all the other components shown
within “part 2“). Take care for the cable length towards the SDCS-PIN-48
board(s) and towards the SDCS-CON-4 board. All components of this part 2
have to be mounted on a metal plate to ensure good contact between conduc-
tive supports / card holder and the cubicle´s frame. This frame by itself has to
be grounded. Make sure the shields of the shielded cables follow the guide-
lines given in chapter
Installation (grounding on large areas by means of
clamps).
-
Select a place for the electronics housing and mount it. Take care for the cable
length towards the SDCS-PIN-51. Take the same grounding guidelines as be-
fore.
Wiring the Kit
The system still has to be in a safe condition! The drawing used for the mechanical
work should now be used for the electrical wiring too. For single thyristor bridges
take the hints given in chapter
Interfacing the Electronics and Thyristors into con-
sideration. Before the wiring work is started do the following preparations:
-
Check, if there are labels / indications on the existing power part naming the
thyristors and / or phases according to figure
Arrangement of thyristors in an
anti parallel bridge . In case labels are existing, check, if they are correct and fit
to each other.
- If there are no labels existing or they are incorrect, start in this way:
-
look for the phase U1 (L1) and mark it; do the same with V1 (L2) and W1
(L3)
-
look for thyristor V11 and mark it; the next statements may be of help in
case problems may arise
•
use the measurements done before
•
if not, follow the busbar U1; the thyristor connected to that busbar is ei-
ther V11 or V24
•
the cathode of V11 (or the heatsink) has electrical contact to the C1 / +
power part terminal
•
at disk type thyristors the orientation can easily be recognised by the
smaller distance between cathode and gate compared to the bigger dis-
tance between gate and anode
•
if the place of V11/V24 is found, but the orientation is not clear and the
thyristor is not visible take one pair of pulse firing leads (one of them is