KB Electronics KBAC-29 (1P) User Manual
Page 18
Using pliers, gently rock the female terminal back and forth
while pulling it upward. See Figure 17
6.2
MOTOR HORSEPOWER SELECTION (J2) – Set Jumper J2
to the corresponding position for the motor being used.
See Figure 18.
6.3
AUTOMATIC RIDE-THROUGH OR MANUAL START
SELECTION (J3)* – Jumper J3 is factory set to the “A” posi-
tion for Automatic Ride-Through. If the power is interrupted
for up to 2 seconds, the drive will shut down and then
“ride-through” and automatically return to the set frequency.
If Jumper J3 is set to the “M” position, the drive will have to
be manually restarted for a momentary power loss using the Start/Stop Switch. See Figure 19. Also
see Section 11.2, on page 22, for the Status (ST) LED indication.
*On Model KBAC-24D, Jumper J3 is labeled “AUTO” and “MAN”.
6.4
60 Hz AND 50 Hz MOTOR
OPERATION AND DRIVE
OUTPUT FREQUENCY
SELECTION (J4 AND J5) –
Both jumpers must be set for the
appropriate motor nameplate
frequency rating.
6.4.1 SETTING THE DRIVE
FOR 60 Hz OR 50 Hz
MOTOR OPERATION –
The drive is factory set to
operate 60 Hz motors.
Jumper J4 is factory set to
the “1X” position and
Jumper J5 is factory set to the
“60Hz” position. For 50 Hz motors,
set Jumper J5 to the “50Hz” posi-
tion, and be sure Jumper J4 is set to
the “1X” position. See Figure 20.
6.4.2 SETTING THE DRIVE FOR TWO
TIMES THE RATED MOTOR RPM –
The drive can also be used to oper-
ate the motor up to two times the
rated RPM. However, constant
horsepower will result when operat-
ing the drive in the “2X” mode
above the motor rated frequen-
cy. See Figure 21, on page 18.
For 120 Hz output with 60 Hz
motor, set Jumper J4 to the
“2X” position and be sure
Jumper J5 is set to the “60Hz”
position. For 100 Hz output with
50 Hz motor, set Jumper J4 to
the “2X” position and set
Jumper J5 to the “50Hz” position. See Figure 22, on page 18.
17
FIGURE 17 – REMOVING JUMPER J1
ON MODELS KBAC-24D, 27D
FIGURE 18 – MOTOR HORSEPOWER SELECTION
Terminal
Installed
Removed
Terminal
FIGURE 19 – AUTOMATIC RIDE-THROUGH
OR MANUAL START SELECTION*
Automatic Ride-Through
(Factory Setting)
(J3 Installed in “A” Position)
Manual Start
(J3 Installed in “M” Position)
A
J3
M
A
J3
M
J2
KBAC-24D KBAC-27D
1
2**
3/4
1
1
⁄
2
**
1/2
1
1/4
3/4
1/8
1/2
KBAC-29* KBAC-45* KBAC-48*
3***
3
5
2***
2
3
1
1
⁄
2
1
1
⁄
2
2
1
1
1
1
⁄
2
3/4
3/4
1
A
B
C
D
E
The factory setting is shown in bold.
*Jumper J2 on Models KBAC-29, 45, 48 is labeled “A”, “B”, “C”, “D”, “E”. **Model
KBAC-27D is rated 1
1
⁄
2
HP maximum with 115 Volt AC line input and 2 HP maximum
with 208/230 Volt AC line input. ***Model KBAC-29 is rated 2 HP maximum with
single-phase AC line input and 3 HP maximum with 3-phase AC line input.
FIGURE 20 – 60 Hz & 50 Hz MOTOR SELECTION
60 Hz Motor Operation
(Factory Setting)
(J4 Installed in “1X” Position)
(J5 Installed in “60Hz” Position)
50 Hz Motor Operation
(J4 Installed in “1X” Position)
(J5 Installed in “50Hz” Position)
2X
J4
1X
50Hz
J5
60Hz
2X
J4
1X
50Hz
J5
60Hz
*On Model KBAC-24D, Jumper J3 is labeled “AUTO” and “MAN”.