Setting Up Alarms, Warnings And Digital Inputs And Outputs (D I/O) - ABB PQFS Installation, Operation And Maintenance Instructions

(b)
(c)

7.7.1.2 Setting up alarms, warnings and digital inputs and outputs (D I/O)

The PQF-Manager contains 2 digital inputs, 6 digital outputs and 1 alarm contact (with two
complementary outputs). These contacts can be used to provide data to the filter (e.g.
remote control signals) and get data out of the filter (e.g. filter status information, alarm
information etc). This section discusses the PQF-Manager setup for controlling all the
digital I/O and creating warnings and alarms.
88 The PQF-Manager user interface ç Manual Power Quality Filter PQFS
Note: The modes 'L-N' and 'L-L & L-N' can be used to minimize the amount of
fundamental frequency current flowing in the neutral.
If the measured cos j is higher than the set point and is inductive (e.g. measured
0.97 inductive and set point 0.92 inductive, then the filter will not make any
correction. If the measured cos j is capacitive, the filter will correct the power factor
to 1.0
If the measured cos j is higher than the set point and is capacitive (e.g. measured
0.97 capacitive and set point 0.92 capacitive, then the filter will not make any
correction. If the measured cos j is inductive, the filter will correct the power factor to
1.0
· Set up of the digital inputs of the PQF-Manager
For setting up the digital inputs go to [/Welcome/Settings/Customer set./Digital
Inputs]
WARNING: If a function is assigned to a digital input, the same function
must never be assigned to the other digital input. Otherwise the filter may
behave erratically.
For full redundancy with multi-master filters, these functions need to be set up in
each master unit of the filter system and the functions should be cabled
accordingly.
Table 8 gives an overview of the possible digital input settings and the resulting
filter behavior. The settings given in this table can be applied to any of the two
digital inputs.
For more information on:
The remote control functionality, refer to
o
The main/auxiliary control functionality, refer to
o
The implementation of local start/stop buttons, refer to
o
The default setting for the digital inputs is 'Disabled'.
· Set up of the digital outputs of the PQF-Manager
For setting up the digital outputs go to [/Welcome/Settings/Customer set./Digital
Outputs]
For full redundancy with multi-master filters, these functions need to be set up in
each master unit of the filter system and the functions should be cabled
accordingly.
Section 6.12.1
Section 6.12.5
Section 6.12.6