KB Electronics KBVF-48 - Manual (Page 7)

1 QUICK-START INSTRUCTIONS
7
See Figures 1 – 3, on pages 4 – 6. Also see Section 4 — Important Application Information, on
pages 13 and 14.
WARNING! Disconnect main power when making connections to the drive.
1.1 AC LINE CONNECTION – Wire the AC line input to Terminal Block TB1. Model KBVF-27 is designed
for single-phase (Terminals “L1”, “L2”) or 3-phase (Terminals “L1”, “L2”, “L3”) AC line input. Models
KBVF-29, 45, 48 are designed for 3-phase (Terminals “L1”, “L2”, “L3”) AC line input only. See Figures
1 and 2, on pages 4 and 5. Also see Section 9.1, on page 17.
Application Note – Do not wire this drive to a GFCI. If operation with a GFCI is required,
contact our Sales Department.
Model KBVF-27 – Rated for 208/230 Volt single-phase or 3-phase AC line Input.
Model KBVF-29 – Rated for 208/230 Volt 3-phase AC line input.
Models KBVF-45, 48 – Rated for 400/460 Volt 3-phase AC line input.
1.2 GROUND CONNECTION – Connect the ground wire (earth) to the ground screw, as shown in
Figures 1 and 2, on pages 4 and 5. See Section 9.2, on page 17.
1.3 AC LINE FUSING – It is recommended that a fuse(s) or circuit breaker be installed in the AC line.
Fuse each conductor that is not at ground potential. For the recommended fuse size, see Table 2, on
page 11. Also see Section 10, on page 22.
1.4 MOTOR CONNECTION – Wire the motor to Terminals “U”, “V”, “W”, of Terminal Block TB1, as
shown in Figures 1 and 2, on pages 4 and 5. (Special reactors may be required for cable lengths over
100 ft. (30 m) – consult our Sales Department.) See Section 9.3, on page 18.
Note: The drive is programmed to operate 3-phase AC induction motors. For PSC motors, optional
software is required – consult our Sales Department.
1.5 MOUNTING INSTRUCTIONS – See Section 7, on page 15 and 16.
1.6 60 Hz & 50 Hz MOTOR OPERATION (JUMPERS J1 & J2 ON THE LOWER PC BOARD) – The
drive is factory set for 60 Hz motor operation (Jumper J1 set to the “60Hz” position and Jumper J2
set to the “X1” position). For 50 Hz motor operation, set Jumper J1 to the “50Hz” position and be
sure Jumper J2 is set to the “X1” position. See Section 6.1.1, on page 14.
1.7 TRIMPOT SETTINGS – All trimpots have been factory set for most applications, as shown in Figure
5, on page 13. Some applications require adjustments of the trimpots in order to tailor the drive for a
specific requirement. See Section 13, on pages 23 – 26.
1.8 MAIN SPEED POTENTIOMETER CONNECTION – The drive is supplied with a 5 kΩ potentiometer
(supplied) to control motor speed. On Models KBVF-27, 29, the potentiometer is to be connected to
terminals “P1”, “P2”, and “P3”. On Models KBVF-45, 48, the potentiometer is to be connected to the
SIVFR.
Models KBVF-27, 29
Unidirectional Speed Operation – Wire the potentiometer to Terminals “P1” (low), “P2” (wiper), “P3”
(high), as described in Section 9.4.1, on page 18. To select forward or reverse motor direction, see
Section 6.3, on page 15. To install a Forward-Stop-Reverse Switch, see Section 9.7.1, on page 20.
Bidirectional Speed Operation – See Section 9.4.2, on page 18.
Important – You must read these simplified instructions before proceeding. These instructions are to be
used as a reference only and are not intended to replace the details provided herein. You must read the
Safety Warning on, page 8, before proceeding.