KB Electronics KBAC-29 User Manual

MODEL KBAC-29 (1P) SUPPLEMENT

IMPORTANT: The KBAC Series Installation and Operation Manual (Part No. A40206) must be read
and understood before attempting to operate this drive. For further assistance, contact our sales
Department at 954-346-4900 or Toll Free at 800-221-6570 (outside Florida).

DESCRIPTION: Model KBAC-29 (1P) has been added to the KBDA Series of drives. This model is
designed to accept single-phase 208/230 Volts AC line input only. Table 3A, Table 4A, and Figure
8A, below, are additions to Table 3 (on page 10), Table 4 (on page 10), and Figure 8 (on page 14),
respectively, of the manual.

WARNING! HIGH VOLTAGE!

DISCONNECT MAIN POWER BEFORE MAKING CONNECTIONS TO THE DRIVE

Description Specification Factory Setting

Operating Temperature Range (°C / °F) 0 – 35 / 32 – 95 ──
Operating Humidity Range (% Relative, Non-Condensing) 0 – 95 ──
Storage Temperature Range (°C / °F) -25 – +85 / -13 – +185 ──

Model

KBAC-29

(Gray / White1)

(1P)

Notes: 1. White FDA approved finish. 2. The drive is rated 9.0 Amps at 35 °C, maximum, and
derated to 8.3 Amps at 40 °C. For ambient temperatures above 40 °C, the drive is derated 2.5%
per °C.

TABLE 3A – GENERAL PERFORMANCE SPECIFICATIONS

TABLE 4A – ELECTRICAL RATINGS

AC Line Input Output

Part No.

10001 / 10002 208/230 1 20.5 25 0 – 208/230 9.0 3 (2.25)

Volts AC

(50/60 Hz)

Phase

(Ф)

Maximum

(Amps AC)

FIGURE 8A – A LINE INPUT, MOTOR, AND GROUND CONNECTIONS

Current

Fuse or

Circuit

Breaker

Rating

(Amps)

Voltage

Range

(Volts AC)

Maximum

Continuous

Load Current

(RMS Amps/Phase)

2

Maximum

Horsepower

(HP (kW))

KB Electronics, Inc.

12095 NW 39th Street, Coral Springs, FL 33065-2516 ● [phone] ● FAX [phone]
Outside Florida Call Toll Free [phone] ● [e-mail]
www.kbelectronics.com (A42047) – Rev. A00 – 3/22/2010

Installation & Operation Manual

KBAC SERIES

Adjustable Frequency Drives for 3-Phase AC Motors

NEMA-4X/IP-65

Variable Speed/ Soft-Start AC Motor Drive

with Electronic Motor Overload Protection for Inverter Duty Motors

Washdown and Watertight for Indoor and Outdoor Use

Rated for 208 – 230 and 400/460 Volt 50 & 60 Hz

3-Phase & PSC

2

AC Induction Motors from Subfractional thru 5 HP

Operates from 115, 208/230 Volt and 400/460 Volt 50/60 Hz AC Line

This Manual Covers Models KBAC-24D, 27D, 29, 45, 48

1

2,3

See Safety Warning,
on page 5.

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 – contact
our Sales Department. 3. Do not use this drive with GFCIs. 4. Installation of a CE approved RFI filter is required.

4

NOTE: THE DRIVE IS FACTORY SET FOR
60 Hz MOTORS. FOR 50 Hz MOTORS,
SEE SECTION 6.4, ON PAGE 17.

© 2008 KB Electronics, Inc.

(see back cover)

TABLE OF CONTENTS

Section Page

1 Quick-Start Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Safety Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Important Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Setting Selectable Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8 Recommended High Voltage Dielectric Withstand Testing (Hi-Pot Testing) . . . . . . . . . . . . . . . . . . . . . . . . . 19

9 Drive Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

10 AC Line Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

11 Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

12 Trimpot Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Tables Page

1 Jumper Selectable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 General Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Electrical Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Terminal Block Wiring Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Drive Operating Condition and Run/Fault Relay Contact Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7 Drive Operating Condition and Status LED Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figures Page

1 Quick-Start Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Control Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Model KBAC-24D Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Models KBAC-27D, 29, 45, 48 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Maximum Allowed Motor Torque vs. Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6 Open Ventilated Motor with External Fan Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7 Models KBAC-24D, 27D AC Line Input, Motor, and Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . 13

8 Models KBAC-29, 45, 48 AC Line Input, Motor, and Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . 14

9 Remote Main Speed Potentiometer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

10 Remote Start/Stop Switch Connection with Normally Open Stop Contact . . . . . . . . . . . . . . . . . . . . . . . . 15

11 Remote Start/Stop Switch Connection with Normally Closed Stop Contact . . . . . . . . . . . . . . . . . . . . . . . 15

12 Start/Stop Function Eliminated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

13 Voltage Following Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

14 Enable Circuit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

15 Run/Fault Relay Output Contacts Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

16 Models KBAC-24D, 27D AC Line Input Voltage Selection (Jumper J1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

17 Removing Jumper J1 on Models KBAC-24D, 27D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

18 Motor Horsepower Selection (Jumper J2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

19 Automatic Ride-Through or Manual Restart Selection (Jumper J3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

20 60 Hz and 50 Hz Motor Selection (Jumpers J4 and J5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

21 Available Torque vs. Output Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

22 120 Hz and 100 Hz Drive Output Frequency Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

23 Fixed or Adjustable Boost Selection (Jumper J6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

24 Regenerative or DC Injection Braking Selection (Jumper J7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

25 “Run” or “Fault” Output Relay Operation Selection (Jumper J8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

26 Normally Open or Closed Stop Contact Selection (Jumper J9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

27 Constant or Variable Torque Selection (Jumper J10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2

t Overload Selection (Jumper J11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

28 I

29 Typical Hi-Pot Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ii

30 Minimum Speed Trimpot (MIN) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

31 Maximum Speed Trimpot (MAX) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

32 Acceleration Trimpot (ACCEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

33 Deceleration Trimpot (DECEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

34 DC Injection Brake Trimpot (DECEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

35 Slip Compensation Trimpot (COMP) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

36 Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2

t Trip Time vs. Motor Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

37 I

38 Boost Trimpot (BOOST) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

39 Run-Stop-Jog Switch Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

40 Jog Trimpot (JOG) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Items Included In this Package:

Adjustable Frequency Drive, Installation and Operation Manual, Trimpot Adjustment Tool, CE Approved Product
Information Card, Warranty Registration Card.

Drive Model Nos. and Part Nos.

Part No.

Model No.

KBAC-24D 9987 9988

KBAC-27D 9520 9521

KBAC-29 9528 9529

KBAC-45 9530 9531

KBAC-48 9540 9541

*White FDA approved finish.

Black White*

UL Notice

230 VAC Controls

Suitable For Use On A Circuit Capable Of Delivering Not More Than 5 kA RMS Symmetrical Amperes,
230 Volts Maximum.
Use Copper Conductors Rated 75 ºC.
Suitable for Operation in a Maximum Surrounding Air Temperature of 40 ºC.

460 VAC Controls

Suitable For Use On A Circuit Capable Of Delivering Not More Than 5 kA RMS Symmetrical Amperes,
460 Volts Maximum.
Use Copper Conductors Rated 75 ºC.
Suitable for Operation in a Maximum Surrounding Air Temperature of 40 ºC.

iii

1 QUICK-START INSTRUCTIONS

see Section 5.2, on page 14.

Ground (Earth):

(Ter minals L1, L2, L3)

see Section 5.1, on pages 13 – 14.

(Models KBAC-29, 45, 48):

50/60 Hz, AC Line Input

208/230, 400/460 Volt, 3-Phase,

(Ter minals L1, L2)

see Section 5.1, on pages 13 – 14.

(Models KBAC-24D, 27D, 29):

50/60 Hz, AC Line Input

208/230 Volt , Single Phase,

3-Phase

see Section 5.3, on page 14.

AC Induction Motor:

AC LINEMOTOR

Motor

TB1

L2

L1V WUL3

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.

See Figure 1. Also see Section 4 - Important Application Information, on page 12.

WARNING! Disconnect main power before making connections to the drive.

FIGURE 1 – QUICK-START CONNECTION DIAGRAM*

*Layout of Model KBAC-24D varies slightly.

1.1 AC LINE INPUT CONNECTION – Wire the AC line input to Terminal Block TB1. See Section 5.1, on

pages 13 – 14.

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, 27D, the setting of Jumper J1 must match the AC line input voltage.

Models KBAC-24D, 27D: 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 13.

4

Note: Model KBAC-27D is rated for 1
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 14.

Note: Rated for 2 HP maximum with single-phase AC line input and 3 HP maximum with 3-phase AC
line input.

1

⁄2 HP maximum with 115 Volt AC line input and 2 HP maximum

Models KBAC-45, 48: Designed to accept 3-phase (Terminals “L1”, “L2”, “L3”) AC line input only.
Rated for 400/460 Volt AC line input only. See Figure 8, on page 14.

1.2 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 4, on
page 10. Also see Section 10, on page 21.

1.3 GROUND CONNECTION – Connect the ground wire (earth) to the ground screw, as shown in Figure

7, on page 13, and Figure 8, on page 14. See Section 5.2, on page 14.

1.4 MOTOR CONNECTION – Wire the motor to Terminal Block TB1 Terminals “U”, “V”, “W”, as shown in

Figure 7, on page 13, and Figure 8, on page 14. (Special reactors may be required for cable lengths
over 100 ft. (30 m) – consult our Sales Department.) See Section 5.3, on page 14.

1.5 60 Hz and 50 Hz MOTOR OPERATION – The drive is factory set for 60 Hz 3-phase motor operation

(Jumper J5 set to the “60Hz” position). For 50 Hz motor operation, set Jumper J5 to the “50Hz” posi­tion. See Section 6.4, on page 17.

1.6 START/STOP SWITCH – The drive is supplied with a prewired Start/Stop Switch to electronically

“start” and “stop” the drive, as described in Section 5.5, on pages 14 – 15. This switch must be used
to “start” the drive each time the AC line is applied to the drive or to “restart” the drive. Also see
Section 6.8, on page 18.

1.7 JUMPER SETTINGS – All jumpers have been factory set for most applications, as shown in Figure 2,

on page 9. Some applications require setting of the jumpers in order to tailor the drive for a specific
requirement. See Section 6, on pages 16 – 18.

1.8 TRIMPOT SETTINGS – All trimpots have been factory set for most applications, as shown in Figure

2, on page 9. Some applications require adjustment of the trimpots in order to tailor the drive for a
specific requirement. See Section 12, on pages 22 – 25.

1.9 DIAGNOSTIC LEDs – After power has been applied, observe the LEDs to verify proper drive opera-

tion, as described in Section 11, on pages 21 – 22.

2 SAFETY WARNING

Definition of Safety Warning Symbols

Electrical Hazard Warning Symbol – Failure to observe this warning could result in electrical
shock or electrocution.

Operational Hazard Warning Symbol – Failure to observe this warning could result in serious
injury or death.

This product should be installed and serviced by a qualified technician, electrician, or

electrical maintenance person familiar with its operation and the hazards involved. Proper

installation, which includes wiring, fusing or other current protection, and grounding can reduce the

chance of electrical shocks, and/or fires, in this product or products used with this product, such as

electric motors, switches, coils, solenoids, and/or relays. Do not use this drive in an explosion-proof

application. Eye protection must be worn and insulated adjustment tools must be used when working

with drive under power. This product is constructed of materials (plastics, metals, carbon, silicon, etc.)

which may be a potential hazard. Proper shielding, grounding, and filtering of this product can reduce

the emission of radio frequency interference (RFI) which may adversely affect sensitive electronic

equipment. It is the responsibility of the equipment manufacturer and individual installer to supply this

Safety Warning to the ultimate end user of this product. Be sure to follow all instructions carefully. Fire

and/or electrocution can result due to improper use of this product. (SW 1/2006)

5

This product complies with all CE directives pertinent at the time of manufacture. Contact our Sales

Department for Declaration of Conformity. Installation of a CE approved RFI filter is required. See RFI
Filters & Chokes Selection Guide D-321 (Part No. A42027) for selection of filters to meet the Industrial or
Residential Standard. Additional shielded cable and/or AC line cables may be required along with a signal
isolator (SIAC (Part No. 9600)).

3 INTRODUCTION

Thank you for purchasing the KBAC Adjustable Frequency Drive. KB Electronics, Inc. is committed to
providing total customer satisfaction by producing quality products that are easy to install and operate. The
KBAC is manufactured with surface mount components incorporating advanced circuitry and technology.

The drives are variable speed controls housed in a rugged NEMA-4X / IP-65 washdown and watertight
die-cast aluminum enclosure. They are designed to operate 208 – 230 and 400/460 Volt 50 & 60 Hz
3-phase AC induction motors from subfractional thru 5 HP. The sine wave coded Pulse Width Modulated
(PWM) output operates at a carrier frequency of 16 kHz which provides high motor efficiency and low noise.
Adjustable Linear Acceleration and Deceleration are provided, making the drive suitable for soft-start
applications.

Due to its user-friendly design, the KBAC AC drive is easy to install and operate. Tailoring to specific applica­tions is accomplished with selectable jumpers and trimpots, which eliminate the computer-like programming
required on other drives. However, for most applications no adjustments are necessary. For more advanced
programming, PC based Drive-Link™ software is available.

2

Main features include adjustable RMS Current Limit and I

t Motor Overload Protection.* In addition, Adjustable
Slip Compensation with Static Auto-Tune and Boost provides high torque and excellent load regulation over a
wide speed range. Power Start™ delivers over 200% motor torque to ensure start-up of high frictional loads.
Electronic Inrush Current Limit (EICL™) eliminates harmful AC line inrush current. A Run/Fault Relay is provid­ed, which can be used to turn on or off equipment or to signal a warning if the drive is put into the Stop Mode
or if a fault has occurred. The drive is suitable for machine or variable torque (HVAC) applications. Also, a
jumper is provided for selection of Regenerative or DC Injection Braking.

Standard front panel features include Diagnostic LEDs for “Power On” and “Drive Status”, a Start/Stop Switch,
and a Main Speed Potentiometer. Other features include a Barrier Terminal Block to facilitate wiring of the AC
line and motor, adjustable trimpots (MIN, MAX, ACCEL, DECEL, COMP, CL, JOG, BOOST), customer selec­table jumpers (Line Voltage (dual voltage models only), Motor Horsepower, Automatic Ride-Through / Manual
Start, Motor Frequency, Frequency Multiplier, Fixed/Adjustable Boost, Regenerative / Injection Braking, “Run”
or “Fault” Output Relay Operation, NO/NC Stop Contact, Constant/Variable Torque, I

2

t Overload Selection).

Optional accessories include: Forward-Stop-Reverse Switch, On/Off AC Line Switch, Run-Stop-Jog Switch,
Signal Isolator, Auto/Manual Switch, Class ”A” AC Line Filter, Multi-Speed Board, Programming Kit, Modbus
Communication Module, and Liquidtight Fittings. A connector is provided for easy installation of accessories.
Custom software: all models can be factory programmed for applications which require special timing, PLC
functions, and GFCI operation – contact our Sales Department.

*UL approved as an electronic overload protector for motors.

3.1 STANDARD FEATURES

• Industrial Duty Die-Cast Aluminum Case with Hinged Cover – Available in black finish or FDA

approved white finish.

• Simple to Operate – Does not require programming. Uses trimpots and jumpers, which are factory

set for most applications.

• Motor HP Selection Jumper – Allows the drive to be used on a wide range of motors without

recalibration.

• Diagnostic LEDs – Power on (POWER) and drive status (STATUS).

• Run/Fault Relay Output Contacts – Can be used to turn on or off equipment or to signal a

6

warning if the drive is put into the Stop Mode or a fault has occurred.

• Start/Stop Switch – Provides electronic start and stop functions.

• Barrier Terminal Block – Facilitates wiring of motor, AC line, and Run/Fault Relay Output Contacts.

• Jumper Selection of Drive Output Frequency – Increases the motor speed up to two times the

rated RPM.

• Ride-Through – Provides smooth recovery to the previous set speed during a momentary power

loss (of less than 2 seconds).

• Holding Torque at Zero Speed – Resists motor shaft rotation when the drive is in Stop Mode.

Note: GFCI Operation – This drive can operate with GFCIs (optional software required) – contact our
Sales Department.

3.2 PERFORMANCE FEATURES

• Power Start™ – Provides more than 200% starting torque which ensures startup of high frictional

loads.

• Slip Compensation with Static Auto-Tune and Boost – Provides excellent load regulation over a

wide speed range.

• Speed Range – 60:1

3.3 PROTECTION FEATURES

2

• Motor Overload (I

t) with RMS Current Limit* – Provides motor overload protection which pre-

vents motor burnout and eliminates nuisance trips.*

• Electronic Inrush Current Limit (EICL™) – Eliminates harmful Inrush AC line current during startup.

• Short Circuit – Shuts down the drive if a short circuit occurs at the motor (phase-to-phase).

• Regeneration – Eliminates tripping due to high bus voltage caused by rapid deceleration of high

inertial loads.

• Undervoltage and Overvoltage – Shuts down the drive if the AC line input voltage goes above or

below the operating range.

• MOV Input Transient Suppression.

• Microcontroller Self Monitoring and Auto Reboot.

*UL approved as an electronic overload protector for motors.

3.4 TRIMPOT ADJUSTMENTS

• Minimum Speed (MIN) – Sets the minimum speed of the motor. See Section 12.1, on page 22.

• Maximum Speed (MAX) – Sets the maximum speed of the motor. See Section 12.2, on page 22.

• Acceleration (ACCEL) – Sets the amount of time for the motor to accelerate from zero speed to full

speed. See Section 12.3, on page 22.

• Deceleration (DECEL) – Sets the amount of time for the motor to decelerate from full speed to zero

speed. See Section 12.4, on page 23.

• DC Injection Brake (DECEL) – When the drive is set for DC Injection Braking (Jumper J7 set to the

“INJ” position), the DECEL trimpot is used to set the DC Injection Brake voltage and time. See
Section 12.5, on page 23.

• Slip Compensation (COMP) – Maintains set motor speed under varying loads. See Section 12.6,

on page 23.

• Current Limit (CL) – Sets the current limit (overload) which limits the maximum current to the motor.

See Section 12.7, on page 24.

• Boost (BOOST) – Sets the amount of Boost which can be used to obtain maximum low speed per-

formance. See Section 12.8, on pages 24 – 25.

• Jog (JOG) – Sets the “jog” speed of the motor. Must be used with the optional Run-Stop-Jog

Switch Kit (Part No. 9340). See Section 12.9, on page 25.

7

TABLE 1 – JUMPER SELECTABLE FEATURES

1

Description

AC Line Input Voltage (115, 230) J1

Motor Horsepower (see Table 4 - Electrical Ratings, on page 10) J2

Automatic Ride-Through or Manual Restart (A*, M) J3

Frequency Multiplier (1X, 2X) J4

Motor Frequency (50Hz, 60Hz) J5

Fixed or Adjustable Boost (FIX, ADJ) J6

Regenerative or DC Injection Braking (RG, INJ) J7

“Run” or “Fault” Output Relay Operation (R, F) J8

Normally Open or Closed Stop Contact (NO, NC) J9

Constant or Variable Torque (VT, CT) J10

I2t Overload Selection (1, 2)

Notes: 1. Bold indicates factory setting. 2. In Automatic Ride-Through Mode, the drive will automatically restart due to a momentary power loss of less
than 2 seconds.

PC Board

Designation

J11

KBAC-24D KBAC-27D KBAC-29 KBAC-45 KBAC-48

3 3

— — —

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3 3

TABLE 2 – OPTIONAL ACCESSORIES

Model

Model

Model

Model

Description

Forward-Stop-Reverse Switch – Provides motor reversing and stop functions.

Mounts on the enclosure cover and is supplied with a switch seal to maintain
liquidtight integrity.

On/Off AC Line Switch – Disconnects the AC line. Mounts on the enclosure
cover and is supplied with a switch seal to maintain liquidtight integrity.

Run-Stop-Jog Switch – Selects speed setting from either the Main Speed
Potentiometer or the JOG Trimpot. Mounts on the enclosure cover and is supplied
with a switch seal to maintain liquidtight integrity.

Signal Isolator – Provides isolation between a non-isolated signal source and the
drive. Mounts on the drive’s PC board with four snap-ins.

Auto/Manual Switch – When used with the Signal Isolator, it selects remote
process signal or the Main Speed Potentiometer. Mounts on the enclosure cover
and is supplied with a switch seal to maintain liquidtight integrity.

KBAC-24D

KBAC-27D

9480 9480 9480 9480 9480

9482 9523 9532 9532 9532

9340 9340 9340 9340 9340

9600* 9600* 9600* 9600* 9600*

9481 9481 9481 9481 9481

KBAC-29

KBAC-45

Model

KBAC-48

AC Line Filter1– Provides Class A RFI (EMI) suppression.

Installs onto the drive’s PC board with quick-connect terminals.
Suffix “S”: Filter is used when On/Off AC Line Switch is installed.
Suffix “NS”: Filter is used when On/Off AC Line Switch is not installed.

Multi-Speed Board – Provides multi-speed operation using external contacts or a
PLC. Mounts on the drive’s PC board with four snap-ins.

Programming Kit2 – Includes DownLoad Module™ (DLM) handheld programming
device which uploads and downloads drive programs, PC to DLM serial communica-

tion cable, DLM to drive communication cable, and PC Windows® based Drive­Link™ communication software.

Modbus Communication Module – Allows direct communication between drive

3

and Modbus

Liquidtight Fittings – Provide a liquidtight seal for wiring the drive. Kit includes
three 1/2” and one 3/4” liquidtight fittings

Notes: 1. Complies with CE Council Directive 89/336/EEC Industrial Standard. 2. If a USB communication cable is required, purchase Part No. 19008.

3. Other protocols available – contact our Sales Department.

protocol.

Suffix “S” 9516 9512 9479 9479 9479

Suffix “NS” 9507 9512 9515 9515 9515

9489 9489 9489 — —

9582 9582 9582 9582 9582

9517 9517 9517 9517 9517

9526 9526 9526 9526 9526

* Warning! It is highly recommended that the Signal Isolator (Part No. 9600) be installed when using the
drive with external control signals.

8