ABB PQFS - Page 27

Manual Power Quality Filter PQFS  Hardware description 27
The component identification is given in Table 12.
Table 12: Preload circuit main components description
Item
Description
Circuit diagram designation
1
Fuse preload circuit
PF1
2
Fuse preload circuit
PF2
3
Preload circuit resistors
R1
4 Preload circuit resistors R2
5 Capacitors
6
Terminal block for top fans
P3
The PQF Main controller board has connectors which are predominantly pre-wired for
use within the filter. However, it also contains a DIP-switch used to set the identification
address and CAN bus connectors for use in a multi-module filter arrangements.
The main controller board is shown in Figure 16.
10
2
6
7
8
9
15
3
12
11
4
13
14
5
16
17
18
21
22
19
20
1
Figure 16: PQF main controller board
The designation of the principal terminals is given in Table 13.