Hitachi PQF Quick Start Up Manual page 11

Item User connections
1 CT connections
2 Power cable connection to the supply
3 Programmable digital outputs (warnings...)
4 Remote control contact connection or/and local on/off buttons or/and
main/auxiliary settings control
5 Modbus communication connection or serial communication
6 Earth connections from the enclosure to installation earth
Note: When a filter system consists of more than one filter unit, a RJ45 communication cable and earth interconnec-
tion cable must be installed between the different units.
The CT connections must be provided to all filter units connected in parallel. The CT circuit of all the parallel units
must be in series, fed from same CT secondary.
Mandatory connections are connections that must be present to make the filter operational. Connections that are not
mandatory can be made to enhance the filter's basic functionality.
All hardwired connection such as digital input/output, communication ports etc. are specific to a PQF-Manager except
for those connected to the PQF-Manager of the real master. The hardwired connection for digital input/output and
communication connections to master PQF-Manager is effective for the entire filter system.
For more information on cabling the user connections, please refer to Chapter 6 of the detailed manuals.
Following description and tables relate to the figures 1 to 11 provided at the beginning of this guide.
Figure 1 shows a typical PQFI master filter panel in CE version.
Figure 2 shows a typical PQFI master filter panel in cULus version.
Figure 3 shows a typical PQFM master filter panel in CE version.
Figure 4 shows a typical PQFM master filter panel in cULus version.
Figure 5 shows a typical PQFS master filter enclosure.
Note that in the cULus version of PQFI, the filter panel breaker is mounted in a separate cubicle. This separate cubi-
cle can be used both as top cable entry cubicle and as bottom cable entry cubicle.
The input/output connections and protection description is given in the table below.
Table 2: Input/Output connections
Item Input/output connections
1 CT connection terminals
2 Filter panel breaker (PQFI) – main protection fuse (PQFM UL)
3 Auxiliary fuse protection
4 PQF-Manager user interface with connection terminals for user I/O (e.g. alarm contact) and communica-
tion interfaces
Up to 8 master panels can be connected in parallel providing full redundancy to the customer. In addition to using
master panels only, PQFS units can be connected in a master-slave arrangement.
STATUS
Approved
Table 1: User connections for PQF
(Figure 1, Figure 2, Figure 3, Figure 4, Figure
SECURITY LEVEL
Public
DOCUMENT ID
9AKK107045A4703
Q UICK STA RT-UP G UI DE
Connection requirement
Mandatory
Mandatory
Not mandatory
Not mandatory
Not mandatory
Mandatory
5)
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