KB Electronics KBMA-24DF - Manual (Page 17)

If an I 2 t or Short Circuit Fault occurs, the drive must be restarted by setting the On/Off AC Line
Switch to the “OFF” position for a minimum of 5 seconds.
7.3.2 Manual Start and Reset* – In Manual
Start Mode, the drive must be manually
restarted, after a fault has cleared, using
the optional Forward-Stop-Reverse Switch.
If a Short Circuit or I 2 t Fault occurs, the
drive can be restarted by setting either the
On/Off AC Line Switch to the “OFF”
position for a minimum of 5 seconds or
setting the Forward-Stop-Reverse Switch
to the “STOP” position.
*Note: The optional Forward-Stop-Reverse Switch must be installed in order to use the drive
for Manual Start operation.
7.4 60 Hz OR 50 Hz MOTOR OPERATION AND DRIVE OUTPUT FREQUENCY (J4 AND J5) – Both jumpers
must be set for the appropriate motor nameplate frequency rating.
7.4.1 Setting the Drive for 60 Hz or 50 Hz
Motor Operation – The drive is factory
set to operate 60 Hz motors. Jumper
J5 is factory set to the “60Hz” position.
For 50 Hz motors, set Jumper J5 to
the “50Hz” position, and be sure
Jumper J4 is set to the “1X” position.
See Figure 12.
7.4.2 Setting the Drive for Two Times the
Rated Motor RPM – The drive can
also be used to operate the motor up
to two times the rated RPM. However,
constant horsepower will result when
operating the drive in the “2X” mode
above the motor rated frequency.
See Figure 13.
17
Automatic Start and Reset
(Factory Setting)
(J3 Installed in “AUTO” Position)
Manual Start and Reset
(J3 Installed in “MAN” Position)
AUTO
MAN
J3
AUTO
MAN
J3
FIGURE 11 – AUTOMATIC OR MANUAL
START & RESET 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)
1X
2X
MULT J4
60HZ
FREQ
50HZ
J5
1X
2X
MULT J4
60HZ
FREQ
50HZ
J5
FIGURE 12 – 60 Hz OR 50 Hz MOTOR SELECTION
FIGURE 13 – AVAILABLE TORQUE VS . OUTPUT FREQUENCY
50/60
Output Frequency (Hz)
0
2 0
%
Torque
50
100/120
100