KB Electronics KBAC-48 - Manual (Page 4)

4
1 QUICK-START INSTRUCTIONS
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 5 before proceeding.
Reconditioning the Bus Capacitors – If this drive has been in storage for over one year, it is
necessary to recondition the power supply bus capacitors. To recondition the bus capacitors, apply the
AC Line with the drive in the Stop Mode for a minimum of one hour. Not following this procedure will
cause the bus capacitors to fail.
See Figure 1. Also see Section 4 - Important Application Information on Page 13.
WARNING! Disconnect main power before making connections to the drive.
1.1 AC Line Input Connection – Wire the AC line input to Terminal Block TB1. See Section 5.1
on pages 14 – 15.
Application Note: Do not wire this drive to a GFCI. If operation with a GFCI is required, contact
our Sales Department.
Note: The rated AC line voltage of the drive must match the actual AC line input voltage. On Models
KBAC-24D and 27D, the setting of Jumper J1 must match the AC line input voltage.
Models KBAC-24D, 27D, 29 (1P): Designed to accept single-phase (Terminals “L1”, “L2”) AC line
input only. Rated for 208/230 Volt AC line input with Jumper J1 set to the “230V” position (factory
setting). Rated for 115 Volt AC line input with Jumper J1 set to the “115V” position. See Figure 7
on page 14.
Note: Model KBAC-27D is rated for 11⁄2 HP maximum with 115 Volt AC line input and 2 HP maximum
with 208/230 Volt AC line input.
Model KBAC-29: Designed to accept single-phase (Terminals “L1”, “L2”) or 3-phase (Terminals “L1”,
“L2”, “L3”) AC line input. Rated for 208/230 Volt AC line input only. See Figure 8 on page 15.
see Section 5.2 on page 15.
Ground (Earth):
(Terminals L1, L2, L3)
see Section 5.1 on pages 14 – 15.
Models KBAC-29, 45, 48:
50/60 Hz, AC Line Input
208/230, 400/460 Volt, 3-Phase,
(Terminals L1, L2)
see Section 5.1 on pages 14 – 15.
Models KBAC-24D, 27D, 29, 29 (1P):
50/60 Hz, AC Line Input
208/230 Volt, Single Phase,
3-Phase
see Section 5.3 on page 15.
AC Induction Motor:
AC LINE M OTOR
Motor
TB1
L2 L1 V W U L3
Figure 1 – Quick-Start Connection Diagram*
*Layout of Models KBAC-24D, 29 (1P) Vary slightly.