KB Electronics KBAC-24D User Manual

INSTALLATION AND OPERATION MANUAL
KBAC SERIES
Adjustable Frequency Drive for 3-Phase AC Motors
NEMA 4X / IP65
Variable Speed / Soft-Start AC Motor Drive
With Electronic Motor Overload Protection
1
Washdown and Watertight for Indoor and Outdoor Use
Rated for 208 – 230 and 400/460 Volt 50 Hz and 60 Hz
3-Phase and PSC
2
AC Induction Motors from Subfractional thru 10 HP
Operates from 115, 208/230, and 400/460 Volt 50/60 Hz AC Line Input
3
NOTE: The drive is factory set for
60 Hz motors. For 50 Hz motors,
see Section 10.4 on page 19.
See Safety Warnings on page 5.
LISTED
IND. CONT.
EQ.
–
70Z
A
4
RoHS
This Manual Covers 2G and 3G Models
3,5
KBAC-24D, 27D, 29, 29 (1P), 45, 48, 217, 217S, 217F, 217SF, 416, 416S, 416F, 416SF
The information contained in this manual is intended to be accurate.
However, the manufacturer retains the right to make changes in design which may not be included herein.
Notes: 1. UL approved as an electronic overload protector for motors. 2. Special software is available for PSC
motors – contact Technical Support. 3. Third Generation (3G) drives are jumper selectable (J12) for standard and sensitive
GFCIs. 4. Installation of a CE approved RFI (EMI) filter is required. 5. Third Generation (3G) drives KBAC-24D, 27D, 29,
29 (1P), 45, 48 are marked "(3G)" on the product label.
All KBAC-217, 416 Series drives are Third Generation (3G).
Copyright © 2017 KB Electronics, Inc.
(See Back Cover)
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KB Electronics KBAC-24D Specifications

General

Brand	KB Electronics
Model	KBAC-24D
Category	DC Drives
Language	English

Summary

QUICK-START INSTRUCTIONS

SAFETY WARNINGS

Safety Warning Symbols Definitions

Explains the meaning of electrical and operational hazard warning symbols used in the manual.

Mandatory Safety Precautions

Emphasizes critical safety precautions for installation and service by qualified personnel.

IMPORTANT APPLICATION INFORMATION

Electronic Motor Overload Protection

Details the drive's Modified I²t Overload Protection and Current Limit features.

INTRODUCTION

Performance Features

Protection Features

Outlines protection mechanisms such as overload, current limit, short circuit, undervoltage, and overvoltage.

MOUNTING

AC LINE INPUT FUSING

ELECTRICAL CONNECTIONS

7.1 AC LINE INPUT CONNECTION

7.2 MOTOR CONNECTION

7.3 GROUND CONNECTION

SETTING SELECTABLE JUMPERS

10.1 AC LINE INPUT VOLTAGE SELECTION (J1)

Explains how to set Jumper J1 for 115V or 208/230V AC line input voltage.

10.2 MOTOR HORSEPOWER SELECTION (J2)

Details setting Jumper J2 to match the motor horsepower for proper drive operation.

10.3 AUTOMATIC RIDE-THROUGH OR MANUAL START SELECTION (J3)

Describes setting Jumper J3 for automatic ride-through or manual start after power interruption.

10.4 MOTOR FREQUENCY SELECTION (J4 AND J5)

Explains setting Jumpers J4 and J5 for 50 Hz or 60 Hz motor operation.

10.5 BOOST MODE SELECTION (J6)

Explains setting Jumper J6 for fixed or adjustable boost mode.

10.6 BRAKING MODE SELECTION (J7)

Details setting Jumper J7 for regenerative braking or DC injection braking.

10.7 RUN/FAULT OUTPUT RELAY OPERATION SELECTION (J8)

10.8 STOP CONTACT TYPE SELECTION (J9)

10.9 TORQUE MODE SELECTION (J10)

10.11 SWITCHING FREQUENCY AND GFCI SELECTION (J12)

Explains setting Jumper J12 for switching frequency and GFCI type.

DRIVE OPERATION

11.1 START-UP PROCEDURE

Outlines the steps for starting up the drive after setup and wiring.

11.2 RESTARTING THE DRIVE AFTER A FAULT HAS CLEARED

Provides instructions for restarting the drive after a fault condition has been resolved.

TRIMPOT ADJUSTMENTS

MINIMUM SPEED TRIMPOT (MIN)

Describes how to adjust the MIN Trimpot to set the minimum motor speed.

MAXIMUM SPEED TRIMPOT (MAX)

Explains how to adjust the MAX Trimpot to set the maximum motor speed.

ACCELERATION TRIMPOT (ACCEL)

DECELERATION TRIMPOT (DECEL)

DC INJECTION BRAKE TRIMPOT (DECEL)

SLIP COMPENSATION TRIMPOT (COMP)

MOTOR OVERLOAD (I2t) WITH RMS CURRENT LIMIT TRIMPOT (CL)

Details adjusting the CL Trimpot for motor overload protection and current limiting.

BOOST TRIMPOT (BOOST)

JOG TRIMPOT (JOG)