ABB PQFS Installation, Operation And Maintenance Instructions page 66

Two connection approaches exist:
PQF-Manager setup for
digital input
Edge ON
Edge OFF
Remark: Vlow = 0 Vdc, Vhigh = 15-24 Vdc
Figure 56: Cabling diagram for implementing start on digital input 1 and stop on digital input 2
66 Electrical design and installation ç Manual Power Quality Filter PQFS
· The first approach is to use one digital input for the start function and the second
digital input for the stop function.
the input considered and the resulting effect when applying voltage to this input.
Table 28: Filter behavior as a function of the PQF-Manager settings for local start/stop
When using the Edge ON function the filter can only be switched on by applying
voltage to the digital input considered. It is therefore recommended in that case
to configure and cable the second digital input as Edge OFF. Refer to
7.7.1.2 for guidelines on how to set up the digital inputs according to the function
required.
The electrical requirements of the digital inputs are as discussed in
Figure 56 shows a cabling diagram for implementing a start function on the first
digital input and a stop function on the second digital input.
24 Vdc
external
supply
- +
External
stop push
button
Remark:
(a)
Left hand terminal block when looking from rear, counting from top to bottom
· The second approach is to use one digital input for both the start function and the
stop function. This leaves the other digital input available for the implementation
of other functions.
Table 29 shows the PQF-Manager setup for the input considered and the
resulting effect when applying voltage to this input.
Table 28 shows the PQF-Manager setup for
and using 2 digital inputs
Vlow applied to digital input
No effect
No effect
PQF-Manager
External
start push
button
(a)
7
(a)
8
9
10
(a)
11
(a)
12
Vhigh applied to digital
input
Filter starts on rising edge
Filter stops on rising edge
Section 4.5.
Digital input 1 (15-24Vdc)
Digital input 2 (15-24Vdc)
Section