KB Electronics KBVF-23P User Manual
Page 31
9.2
Ground Connection – Connect the ground wire (earth) to the green ground screw. The
ground screw is located on the heat sink. See Figure 16, above.
Note: Model KBVF-21D, due to its double insulated design, does not contain a ground screw.
9.3
Motor Connection – Wire the motor to Terminals “U”, “V”, “W”. The terminals are located on
the upper PC board. See Figure 16, above. Motor cable length should not exceed 100 ft. (30
m) – special reactors may be required – consult our Sales Department.
Note: The drive is programmed to operate 3-phase AC induction motors. For PSC motors,
optional software is required – contact our Sales Department.
9.4
Main Speed Potentiometer Connection – The drive is supplied with a 5 kΩ Main Speed
Potentiometer to control motor speed. Wire the Main Speed Potentiometer to Terminals “P1”
(low), “P2” (wiper), “P3” (high). The terminals are located on the lower PC board. See Figure
17, on page 32.
31
FIGURE 16 – AC LINE INPUT, MOTOR, & GROUND CONNECTIONS
3-Phase, 50/60 Hz
208/230 Volt
*
AC Line Input
Motor
Ground (Earth)
Chassis
MOTOR
U
V
W
L1
L2
L3
AC LINE
Models KBVF-23P, 24P
Models KBVF-21D, 22D, 13, 23, 23D, 14, 24, 24D, 26D
AC Line Input
Single-Phase, 50/60 Hz
115, 208/230 Volt
*
Motor
Chassis
Ground (Earth)
**
U
V
MOTOR
L2
W
L1
AC LINE
*Models KBVF-13, 14: 115 Volt AC line input only. Models KBVF-23, 23P, 24, 24P: 208/230 Volt AC line input only. Models KBVF-21D, 22D,
23D, 24D, 26D: 115 Volt AC Line Input (with Jumper J1 set to “115V” position) and 208/230 Volt AC line input (with Jumper J1 set to “230V”
position). ** Model KBVF-21D, due to its plastic case design, does not contain a ground screw.