KB Electronics KBVF-23P - Manual (Page 25)

6.2 60Hz and 50 Hz Motor Operation and Drive
Output Frequency Selection (Jumpers J1 and
J2) – Both jumpers must be set for the appropriate
motor nameplate frequency rating. Jumpers J1
and J2 are located on the lower PC board.
6.2.1 Setting the Drive for 60 Hz or 50 Hz
Motor Operation – The drive is factory set
to operate 60 Hz motors. Jumper J1 is fac-
tory set to the “60Hz” position and Jumper
J2 is factory set to the “X1” position. For 50
Hz motors, set Jumper J1 to the “50Hz”
position, and be sure Jumper J2 is set to
the “X1” position. Jumpers J1 and J2 are
located on the lower PC board. See
Figure 10.
6.2.2 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, con-
stant horsepower will result
when operating the drive in
the “X2” mode above the
motor rated frequency. See
Figure 11, on page 26.
25
Installed
Terminal
Removed
Terminal
FIGURE 9 – REMOVING JUMPER J1
ON MODEL KBVF-26D
FIGURE 10 – 60 Hz & 50 Hz MOTOR SELECTION
60 Hz Motor Operation
(Factory Setting)
(J1 Installed in “60Hz” Position)
(J2 Installed in “X1” Position)
50 Hz Motor Operation
(J1 Installed in “50Hz” Position)
(J2 Installed in “X1” Position)
J2
J1
50/60Hz
X1 X2
J2
J1
50/60Hz
X1 X2