KB Electronics Installs on end of KBVF - Manual (Page 22)

nals of the SIVF. See figure
8, Unidirectional Operation.
Note: A SPDT switch or
contact can be used as an
enable to turn control on
and off electronically.
D. Bidirectional Operation
i. Switch Connection –
Connect the normally open
single pole double throw
(SPDT) maintained switch
with center off position as
shown in figure 9. The center,
or common terminal of the
switch connects to the “COM”
terminal of the SIVF and the
normally open terminals of the
switch connect to the “FWD”
and “REV” terminals of the SIVF.
12
Figure 8 – Unidirectional Operation
Figure 9 – Switch Connection
(Forward-Stop-Reverse)
Safety Warning! Do not use FWD-STOP-REV contacts as a safety disconnect since
they are not fail-safe. Use only the AC line for this purpose.