ABB PQFM - Page 13

Manual Power Quality Filter PQFM  Hardware description 13
Table 3: User connections for PQFM
Item
User connections
Connection requirement
1
CT connections
Mandatory
2
Power cable connection to the supply
Mandatory
3
Programmable digital outputs (warnings…)
Not mandatory
4
Remote control contact connection or/and local
on/off buttons or/and main/auxiliary settings control
Not mandatory
5
PQ
-
link
(USB
-
Ethernet)
–
Modbus
RTU
–
Modbus TCP
communication connection
Not mandatory
6
Earth connections from the enclosure to installation
earth
Mandatory
Note: When a filter system consists of more than one filter unit, a communication cable
and earth interconnection cable must be installed between the different units.
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. For more information on cabling the user connections, please refer
to Chapter 6.
Figure 4 shows a typical PQFM master filter panel in CE version.
Figure 5 shows a typical PQFM master filter panel in cULus version.