KB Electronics Installs on end of KBVF - Manual (Page 23)

Making the connection between
“COM” and “FWD” terminals will oper-
ate the motor in the forward direction.
Making the connection between the
“COM” and “REV” terminals will operate
the motor in the reverse direction. If no
connections are made to either FWD or
REV terminals, the motor will be in the
STOP state. See figure 9, Switch
Connections, on page 12. If the motor
runs in the opposite intended direction,
interchange FWD and REV connections.
Warning: Be sure to disconnect AC power, and wait until “PWR” and
“ST” LEDs are no longer illuminated. HIGH VOLTAGE IS PRESENT
WHILE LEDs ARE ILLUMINATED.
ii. Open Collector Transistor Connections – Connect the open collector transis-
tor circuit as shown in figure 10. Both emitters of the transistor circuit connect
to the “COM” terminal of the SIVF and the collectors of the transistor circuit con-
nect to the “FWD” and “REV” terminals of the SIVF.
IV. CALIBRATION PROCEDURE (See Safety Warning on Page 1)
The SIVF is factory calibrated, but readjustments to the MIN and MAX trimpots can be
made to customize for a particular signal input requirement.
Note: Adjustments to the MAX trimpot will affect the MIN trimpot setting. It may be neces-
sary to repeat steps 1 through 5 to achieve accurate calibration settings. For best
results, adjust MAX trimpot before adjusting MIN trimpot.
13
Figure 10 – Open Collector Connection
(Forward-Stop-Reverse)