ABB PQFS Installation, Operation And Maintenance Instructions page 24

Further it should be noted that:
Information on cabling the digital output contacts is given in
Information on setting up the digital outputs with the PQF-Manager is given in
7.7.1.2
3
Apart from the digital outputs, one potential free relay with a NO and a NC alarm output is
available. This relay contact is activated if any error condition is present during a preset
time. The relay contact is deactivated if the error condition has disappeared for another
preset time. Information on changing the alarm activation/deactivation time is given in
Section 7.7.1.2.
In a master-master filter arrangement, only the master that has the control over the
complete system will activate its alarm contact. For full redundant functionality, it is
recommended to monitor the alarm contacts of all the units in the filter system.
The maximum continuous alarm contact ratings are: 250 Vac/1.5 A.
4
Allows locking the settings of the filter panel. This switch is documented in
24 Hardware description ç Manual Power Quality Filter PQFS
· Whenever a digital output is activated the corresponding icon on the PQF-
Manager display will light up.
· In a master-master filter arrangement, only the master that has the control over
the complete system will activate its digital outputs. For full redundant
functionality, it is recommended to monitor the digital outputs of all the units in the
filter system.
· The default set-up for the digital contacts is given in
Table 10: Default set-up for the digital output contacts
Digital output number
1
2
3
4
5
6
· The customer can change the default output settings by means of the PQF-
Manager.
· The digital outputs contacts have a common point and are of the NO-type
(normal open). The contact ratings are:
Maximum continuous ac rating: 440 Vac/1.5 A;
o
Maximum continuous dc rating: 110 Vdc/0.3 A;
o
The common is rated at 9A/terminal, giving a total of 18 A.
o
Alarm outputs
Lock switch
Table 10
Default function
Auxil. ON
PQF Runs
Full Load
Armed
Unit miss.
T Limit
Section 6.12.
Section
Section 7.4