ABB PQFS Installation, Operation And Maintenance Instructions page 69

−
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 31 shows the PQF-Manager setup for the input considered and the resulting
effect when applying voltage to this input.
Table 31: Filter behavior as a function of the PQF-Manager settings for local start/stop and
PQF-Manager setup for
digital input
Edge ON/OFF
Remark: Vlow = 0 Vdc, Vhigh = 15-24 Vdc
Refer to Section 7.9.1.4
according to the function required.
The electrical requirements of the digital inputs are as discussed in
Figure 48 shows a cabling diagram for implementing a start function and a stop
function on the first digital input.
24 Vdc
external
supply
-
Remark:
(a)
Left hand terminal block when looking from rear, counting from top to bottom
Figure 48: Cabling diagram for implementing start and stop on digital input 1
Once the cabling has been finished:
−
The auxiliary fuse box may be closed
−
The filter top cover may be replaced including the connection of the PQF-Manager
to the master unit
−
The power to the filter may be restored
Remarks:
using 1 digital input
Vlow applied to digital
input
No effect
for guidelines on how to set up the digital inputs
+
External start/stop
push button
Manual Power Quality Filter PQFS  Electrical design and installation 69
Vhigh applied to digital input
Filter starts on first rising edge, stops
on second rising edge, etc
PQF-Manager
Digital input 1
(a)
1
(15-24Vdc)
(a)
2
(a)
3
(a)
4
Section 4.5.