KBAC SERIES INSTALLATION AND OPERATION MANUAL
17
7.5 – REMOTE START/STOP SWITCH CONNECTIONS
The drive is supplied with a prewired Start/Stop Switch mounted on the front cover to electronically start and stop the drive. Also see Section
10.8 on page 20.
To operate the drive from a remote Start/Stop Switch (type (ON)-OFF-ON, SPDT), remove the white, black, and red wires from Terminals
RUN, COM, and STOP. The wires may be taped and left inside the drive. The switch assembly may be removed if a liquidtight seal is used to
cover the hole in the front cover. After applying power to the drive, momentarily set the Start/Stop Switch to the "START" position. Jumper J9
must be set to the "NO" position. See Figure 15.
For Start/Stop Switch with normally closed stop contact, set Jumper J9 to the "NC" position. See Figure 16.
FIGURE 15
REMOTE START/STOP SWITCH CONNECTION
WITH NORMALLY OPEN STOP CONTACT
(J9 SET TO THE "NO" POSITION)
FIGURE
16
REMOTE START/STOP SWITCH CONNECTION
WITH NORMALLY CLOSED STOP CONTACT
(J9 SET TO THE "NC" POSITION)
WARNING! HIGH VOLTAGE!
See Warning on page 15.
7.6 – AUTOMATIC RESTART
Automatic restart requires the elimination of the Start/Stop Switch. Remove the
white, black, and red wires from Terminals RUN, COM, and STOP. The wires may
be taped and left inside the drive. The switch assembly may be removed if a
liquidtight seal is used to cover the hole in the front cover.
To eliminate the Start/Stop function, hardwire Terminals RUN and COM with the
jumper that is provided. Be sure Jumper J9 is set to the "NO" position. See Figure
17.
WARNING!
Using a jumper to eliminate the Start/Stop function will cause the
motor to run at the Main Speed Potentiometer setting when the AC Line is applied.
7.7 – VOLTAGE FOLLOWING CONNECTIONS
An isolated* 0 – 5 Volt DC analog signal input can also be used to control
motor speed in lieu of the Main Speed Potentiometer. The drive output will
linearly follow the analog signal input. Wire the signal input positive lead (+) to
Terminal P2 and the negative lead (-) to Terminal P1. With external circuitry,
a 0 – 10 Volt DC analog signal can also be used. See Figure 18.
WARNING!
The signal input must be isolated from the AC Line. Earth
grounding signal wiring will damage the drive and void the warranty. It is
highly recommended that the Signal Isolator be installed when using signal
following.
*If a non-isolated signal is used, install the Signal Isolator. It accepts voltage
(0 to ±2.5 thru 0 to ±25 Volts DC) or current (4 – 20 mA DC) signal inputs.
See Section 14 on page 23.
Note:
For signal following operation, the Minimum Speed Trimpot (MIN) must be set fully counterclockwise.
7.8 – ENABLE CIRCUIT CONNECTION
The drive can also be started and stopped with an Enable circuit (close to run,
open to stop). See Figure 19.
The Enable function is established by wiring a switch or contact in series with
the orange Main Speed Potentiometer lead which connects to Terminal P2.
When the Enable Switch is closed, the motor will accelerate to the Main
Speed Potentiometer setting. When the Enable Switch is opened, the motor
will decelerate to stop.
WARNING!
If the Enable Switch is to be mounted remotely, it is highly
recommended that the Signal Isolator be installed.
FIGURE 17
START/STOP FUNCTION ELIMINATED
(TERMINALS HARDWIRED) (JUMPER INSTALLED)
(J9 SET TO THE "NO" POSITION)
WARNING! HIGH VOLTAGE!
See Warning on page 15.
FIGURE 18
VOLTAGE FOLLOWING CONNECTIONS (ISOLATED)
V
+
V
+
WARNING! HIGH VOLTAGE!
See Warning on page 15.
FIGURE 19
ENABLE CIRCUIT CONNECTION
WARNING! HIGH VOLTAGE!
See Warning on page 15.
