162 The PQF-Manager user interface
Manual Power Quality Filter PQFM
Table 57: Possible filter unit addresses and corresponding DIP switch settings (facing the board
with ABB logo at the left hand side), counting bottom to top.
Filter address
DIP switch 1
setting (ID0)
DIP switch 2
setting (ID1)
DIP switch 3 setting (ID2)
1
Right
Right
Right
2
Left
Right
Right
3
Right
Left
Right
4
Left
Left
Right
5
Right
Right
Left
6
Left
Right
Left
7
Right
Left
Left
8
Left
Left
Left
Notes:
−
Do not use other settings than the ones mentioned in the table.
−
It is recommended to assign increasing addresses starting from the main master
at the left and moving right.
−
Assigning the same address to different filter units in one filter system will lead
to the filter not being able to start up and go in error (Bad Ratings).
When a filter consists of more than one unit, attention has to be paid to the proper
termination of the communication bus between the different units. This communication
bus is depicted in
by the black lines interconnecting the different units.
Control board in the ‘previous’ unit
Control board in the ‘next’
From previous unit (if present)
To next unit
(if present)
Figure 90: Communication bus between different filter units
In order to terminate the bus correctly, the fourth switch (counting from bottom to top)
from DIP switch 22 (Cf.
) has to be set as follows:
−
Left: For the first unit in a filter system (single unit filter or first physical unit of a
multi-unit filter).
−
Left: For the last physical unit of a multi-unit filter.
−
Right: For all the other units.