KB Electronics KBAC-48 User Manual

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

1

Washdown and Watertight for Indoor and Outdoor Use

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

3-Phase & PSC2 AC Induction Motors from Subfractional thru 5HP

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

AC MOTOR SPEED CONTROL

™

Hybrid Drive

KBAC SERIES • NEMA 4X / IP 65

AC MOTOR SPEED CONTROL

™

Hybrid Drive

KBAC SERIES • NEMA 4X / IP 65

This Manual Covers Models KBAC-24D, 27D, 29, 29 (1P), 45, 48

2,3

NOTE: THE DRIVE IS FACTORY SET FOR

See Safety Warning
on Page 5.

4

60 HZ MOTORS. FOR 50 HZ MOTORS, SEE
SECTION 6.4 ON PAGE 18.

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 lter is required.

©2014 KB Electronics, Inc.
(see back cover)

The QR code link to this

manual is also located on

the inside of the drive cover.

Table of Contents

Section Page

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

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

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

4 Important Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5 Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6 Setting Selectable Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

8 Recommended High Voltage Dielectric Withstand Testing (Hi-Pot Testing). . . . . . . . . . . . . . . . . . . . 22

9 Reconditioning the Bus Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

10 Drive Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

11 AC Line Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

12 Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

13 Trimpot Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Appendix A – Optional Signal Isolator (Part No. 9600) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

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

Tables Page

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

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

3 General Performance Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

5 Terminal Block Wiring Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6 Drive Operating Condition and Run/Fault Relay Contact Status . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7 Drive Operating Condition and Status LED Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figures Page

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

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

3 Model KBAC-24D Mechanical Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Models KBAC-27D, 29, 29 (1P), 45, 48 Mechanical Specications . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Maximum Allowed Motor Torque vs. Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Open Ventilated Motor with External Fan Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7 Models KBAC-24D, 27D, 29 (1P), AC Line Input, Motor, and Ground Connections . . . . . . . . . . . . . . . . 14

8 Models KBAC-29, 45, 48 AC Line Input, Motor, and Ground Connections . . . . . . . . . . . . . . . . . . . . . 15

9 Remote Main Speed Potentiometer Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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

11 Remote Start/Stop Switch Connection with Normally Closed Stop Contact . . . . . . . . . . . . . . . . . . . 16

12 Start/Stop Function Eliminated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

13 Voltage Following Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

14 Enable Circuit Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

15 Run/Fault Relay Output Contacts Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

16 Models KBAC-24D, 27D AC Line Input Voltage Selection (Jumper J1) . . . . . . . . . . . . . . . . . . . . . . . 18

17 Removing Jumper J1 on Models KBAC-24D, 27D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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

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

20 60 Hz and 50 Hz Motor Selection (Jumpers J4 and J5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

21 Available Torque vs. Output Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

22 120 Hz and 100 Hz Drive Output Frequency Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

23 Fixed or Adjustable Boost Selection (Jumper J6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ii

24 Regenerative or DC Injection Braking Selection (Jumper J7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

25 “Run” or “Fault” Output Relay Operation Selection (Jumper J8). . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

26 Normally Open or Closed Stop Contact Selection (Jumper J9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

27 Constant or Variable Torque Selection (Jumper J10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

28 I2t Overload Selection (Jumper J11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

29 Typical Hi-Pot Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

30 Minimum Speed Trimpot (MIN) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

31 Maximum Speed Trimpot (MAX) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

32 Acceleration Trimpot (ACCEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

33 Deceleration Trimpot (DECEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

34 DC Injection Brake Trimpot (DECEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

35 Slip Compensation Trimpot (COMP) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

36 Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

37 I2t Trip Time vs. Motor Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

38 Boost Trimpot (BOOST) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

39 Jog Trimpot (JOG) Range Run-Stop-Jog Switch Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

40 Run-Stop-Jog Switch Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Items Included In this Package:

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

Drive Model Nos. and Part Nos.

Model No.

KBAC-24D 9987 9988
KBAC-27D 9520 9521
KBAC-29 9528 9529
KBAC-29 (1P) 10001 10002
KBAC-45 9530 9531
KBAC-48 9540 9541

*White FDA approved nish.

Part No.

Gray 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

Important – You must read these simplied 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.

Figure 1 – Quick-Start Connection Diagram*

TB1

L2

L1V WU L3

AC LINEM OTOR

Motor

208/230 Volt, Single Phase,

50/60 Hz, AC Line Input

3-Phase

AC Induction Motor:

see Section 5.3 on page 15.

(Terminals L1, L2)

Models KBAC-24D, 27D, 29, 29 (1P):

see Section 5.1 on pages 14 – 15.

Ground (Earth):

see Section 5.2 on page 15.

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

50/60 Hz, AC Line Input

(Terminals L1, L2, L3)

Models KBAC-29, 45, 48:

see Section 5.1 on pages 14 – 15.

*Layout of Models KBAC-24D, 29 (1P) Vary slightly.

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.

4

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

input. For 3 HP rating with single-phase input, use Model KBAC-29 (1P).

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 15.

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 11 on page 22.

1.3 Ground Connection – Connect the ground wire (earth) to the ground screw, as shown in Figure 7
on page 14 and Figure 8 on page 15. See Section 5.2 on page 15.

1.4 Motor Connection – Wire the motor to Terminal Block TB1 Terminals “U”, “V”, “W”, as shown in
Figure 7 on page 14 and Figure 8 on page 15. (Special reactors may be required for cable lengths
over 100 ft. (30 m) – consult our Sales Department.) See Section 5.3 on page 15.

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 18.

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 page 16. 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 19.

1.7 Jumper Settings – All jumpers have been factory set for most applications, as shown in Figure 2
on page 9. However, some jumpers may need to be set in order to tailor the drive for a specic
application. See Section 6 on pages 18 – 20.

IMPORTANT: In order to ensure that the motor is properly protected with the I2t Overload

Protection feature, it is required that Jumper J2 is set to the corresponding position for the motor
horsepower being used, as shown in Figure 18 on page 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
specic requirement. See Section 13 on pages 23 – 26.

1.9 Diagnostic LEDs – After power has been applied, observe the LEDs to verify proper drive
operation, as described in Section 12 on page 23.

2 SAFETY WARNING

Denition 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 must be installed and serviced by a qualied technician, electrician, or

electrical maintenance person familiar with its operation and the hazards involved.
Proper installation, which includes electrical connections, fusing or other current protection,
and grounding, can reduce the chance of electrical shocks, and/or res, 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 ltering of this product can reduce the emission of radio
frequency interference (RFI) which may adversely aect 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. (SW 8/2012)

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 lter is
required. See RFI Filters & Chokes Selection Guide D-321 (Part No. A42027) for selection of lters that
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 pro-

viding 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 5HP. The sine wave coded Pulse Width Modulated
(PWM) output operates at a carrier frequency of 16 kHz which provides high motor eciency 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 specic

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.

Main features include adjustable RMS Current Limit and I2t 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 equipment on or o , 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 and I2t Overload Selection).

Optional accessories include: Forward-Stop-Reverse Switch, On/O AC Line Switch, Run-Stop-Jog Switch,

Signal Isolator, Auto/Manual Switch, Class ”A” AC Line Filter, Multi-Speed Board 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 Dark Gray nish or
FDA approved White nish.

• 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 equipment on or o, to signal a warning

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

6

• 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

• MotorOverload(I2t) with RMS Current Limit* – Provides motor overload protection which
prevents 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– Protects the drive components against damaging voltage
spikes on the AC line.

• 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 13.1 on page 24.

• MaximumSpeed(MAX)– Sets the maximum speed of the motor. See Section 13.2 on page 24.

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

full speed. See Section 13.3 on page 24.

• Deceleration(DECEL)– Sets the amount of time for the motor to decelerate from full speed to
zero speed. See Section 13.4 on page 24.

• 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 13.5 on page 24.

• SlipCompensation(COMP)– Maintains set motor speed under varying loads. See Section 13.6
on pages 24 - 25.

• CurrentLimit(CL)– Sets the current limit (overload) which limits the maximum current to the
motor. See Section 13.7 on page 25.

• Boost(BOOST)– Sets the amount of Boost which can be used to obtain maximum low speed
performance. See Section 13.8 on page 26.

• 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 13.9 on page 26.

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)

Automatic Ride-Through
or Manual Restart (A2, M)

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) J11

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 KBAC-24D KBAC-27D KBAC-29 KBAC-29 (1P) KBAC-45 KBAC-48

p p

J2

J3

p p p p p p

p p p p p p

p p p p p p

p p p p p p

p p p p p p

p p p p p p

p p p p p p

p p p p p p

p p p p p p

p p p p p p

— — — —

Table 2 – Optional Accessories

Description KBAC-24D KBAC-27D KBAC-29 KBAC-29 (1P) KBAC-45 KBAC-48

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/O 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.

AC Line Filter1 – Provides Class A RFI (EMI) suppression.
Installs onto the drive’s PC board with quick-connect terminals.
Sux “S”: Filter is used when On/O AC Line Switch is installed.
Sux “NS”: Filter is used when On/O 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.

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

Notes: 1. Complies with CE Council Directive 89/336/EEC Industrial Standard.

9480 9480 9480 9480 9480 9480

9482 9523 9532 9532 9532 9532

9340 9340 9340 9340 9340 9340

9600* 9600* 9600* 9600* 9600* 9600*

9481 9481 9481 9481 9481 9481

Sux

9507 9512 9479 — 9479 9479

“S”

Sux

9507 9512 9515 — 9515 9515

“NS”

9489 9489 9489 9489 — —

9526 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. See Appendix A, on Page 27, for more information.

8

All jumpers and trimpots are shown in factory set positions.

.

JOG Terminal.

3

4

.

2

See Section 6.1 on Page 18.

See Section 13 on Pages 23 – 26.

See Table 2 on Page 8.

Used with optional Run-Stop-Jog Switch Kit.

Adjustable Trimpots

(Models KBAC-24D, 27D only).

J1: AC Line Input Voltage selection

J2: Motor Horsepower selection

See Section 6.2 on Page 18.

See Section 6.3 on Page 18.

J3: Automatic Ride-Through

or Manual Start selection.

J4: 1X or up to 2X

See Section 6.4 on Pages 18 - 19.

Rated Motor RPM Operation selection.

J5: 60 Hz or 50 Hz

See Section 6.4 on Pages 18 - 19.

Motor Operation selection.

J6: Fixed or Adjustable Boost selection.

See Section 6.5 on Page 19.

J7: Regenerative or

Injection Braking selection.

See Section 6.6 on Page 19.

J8: "Run" or "Fault"

Output Relay Operation selection.

See Section 6.7 on Page 19.

COMP

ECD

B

A

1

ACCELMINMAX JOGCLDECEL BOOST

Figure 2 – Control Layout

JOGP1P3 P2

J2

MAJ32X

J4

FIXJ6RGR INJ

ADJ

J7

50HzJ560Hz 1X

NCNO F

J8J9

CT21 VT

CON1

J11 J10

2

J9: Normally Open or ClosedJ11: I

t Overload selection.

See Section 6.8 on Page 19.

Stop Contact selection.

See Section 6.10 on Page 20.

CON1: Used to connect

Torque selection.

J10: Constant or Variable

optional accessories to the drive.

See Table 2 on Page 8.

See Section 6.9 on Page 20.

CON2

Used for optional

Forward-Stop-Reverse

FWDCOM RUN REV COM

STOP

NCNO COM

Switch.

Diagnostic LEDs.

POWER

See Section 12 on Page 23.

STATUS

Violet (High) (P3)

Orange (Wiper) (P2)

White (Low) (P1)

See Section 5.4 on Pages 15 - 16.

Main Speed Potentiometer.

TB2

Red

Black

White

Normally Closed

Relay Common

Normally Open

on Page 17.

See Section 5.9

Run/Fault Relay

Output Contacts.

on Page 16.

See Section 5.5

Start/Stop Switch.

Notes: 1. Layout of Model KBAC-24D varies slightly. 2. On Mo del KBAC-24D, the JOG and COMP Trimpots are located vertically, along the right edge of the PC board (below the mounting screw). 3. On Model KBAC-24D, Jumper J2 is labeled “1”, “3/4”, “1/2”, “1/4”,

“1/8” (factory set to the “1” position). On Model KBAC-27D, Jumper J2 is labeled “2”, “11⁄2”, “1”, “3/4”, “1/2” (factory set to the “11⁄2” position). On Models KBAC-29, 29 (1P), 45, 48, Jumper J2 is labeled “A”, “B”, “C”, “D”, “E” (factory set according to Table 4 on page 10.

4. On Model KBAC-24D, Jumper J3 is labeled “AUTO” and “MAN”.

9