ABB PQFS Installation, Operation And Maintenance Instructions page 22

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.
The external voltage source needed to drive the digital inputs has to comply with the
following characteristics:
The digital inputs have free of potential contacts (opto-isolated).
When implementing any of the functions described above, please note that according to
the setup done with the PQF-Manager for the input considered, the filter may behave
differently.
behavior.
Function
Remote control
PQF-Manager setup for digital input: Remote ON
Selection of main/auxiliary settings
PQF-Manager setup for digital input: Activ. Main
Selection of main/auxiliary settings
PQF-Manager setup for digital input: Activ. Aux.
Local ON/OFF buttons
PQF-Manager setup for digital input: Edge ON
Local ON/OFF buttons
PQF-Manager setup for digital input: Edge OFF
Local ON/OFF buttons
PQF-Manager setup for digital input: Edg ON/OFF
Remarks:
(a)
: In order for this function to be activated, the PQF-Manager has to be set up
(b)
: When using the Edge ON function the filter can only be switched on by applying
(c)
: When using this function, the filter stop and start can be controlled by one digital
22 Hardware description ç Manual Power Quality Filter PQFS
· Vlow: 0 Vdc
· Vhigh: 15-24 Vdc
· Driving current: 13 mA @ 24 Vdc (Rint = 1.88 kW)
Table 8 below gives an overview of the possible settings and the resulting filter
Table 8: Overview of possible digital input settings and resulting filter behavior
accordingly.
To do this, navigate to [/Welcome/Settings/Customer set./Digital Inputs]
voltage to the digital input considered. It is therefore recommended in that case to
configure and cable the second digital input as Edge OFF.
input leaving the other one available for an additional remote control or switching
between main and auxiliary settings.
Vlow applied to
digital input
Filter off
(a)
Auxiliary settings
are used
(a)
Main settings are
used
(a)
No effect
(a) (b)
No effect
(a) (b)
No effect
(a) (c)
Vhigh applied
to digital input
Filter on
Main settings are
used
Auxiliary settings
are used
Filter starts on
rising edge
Filter stops on
rising edge
Filter starts on
first rising edge,
stops on second
rising edge etc.