KB Electronics KBVF-48 User Manual

Installation & Operation Manual

A Complete Line of Motor Drives

L3

W

L1

AC LINE

L2

VUTB1

MOTOR

50/60HzJ2

CON3

CON1

J1

X1 X2

A/M

CL MAX MIN ACC COMPDEC/B

KBVF SERIES

Chassis/IP-20 AC Drives

Variable Speed/ Soft-Start AC Motor Drive

with Electronic Motor Overload Protection*

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

3-Phase & PSC** AC Induction Motors from 2 thru 5 HP

Operates from 208/230 Volt and 400/460 Volt 50/60 Hz AC Line Input***

This Manual Covers Models KBVF-27, 29, 45, 48

See Safety Warning,
on page 8.

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.

*UL approved as an electronic overload protector for motors. **Custom software is required for PSC motors.
See PSC Motor Addendum (Part No. A42142). ***Do not use this drive with GFCIs. Special software is available –
contact our Sales Department. ****Installation of a CE approved RFI filter is required.

Note: The drive is factory set for

****

60 Hz motors. For 50 Hz motors,
see Section 6.1, on page 14.

© 2006 KB Electronics, Inc.

(see back cover)

ection Page

S

1 Quick-Start Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Safety Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3

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

4

5 Finger-Safe Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6 Setting Selectable Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7

8 Recommended High Voltage Dielectric Withstand Testing (Hi-Pot Testing) . . . . . . . . . . . . . . . . . . . . . . . . . 16

9 Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

0 AC Line Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1

1 Drive Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1

12 Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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

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

Tables Page

1 General Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2 Electrical Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3 Terminal Block Wiring Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4 Drive Operating Condition and Run/Fault Relay Contact Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5 Fault Recovery and Resetting the Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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

Figures Page

1 Models KBVF-27, 29 Quick-Start Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Models KBVF-45, 48 Quick-Start Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 SIVFR Control Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Mechanical Specifications and Control Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Expanded View of Jumpers and Trimpots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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

7 Open Ventilated Motor with External Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

8 60 Hz and 50 Hz Motor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

9 Available Torque vs. Output Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

10 120 Hz and 100 Hz Drive Output Frequency Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

11 Automatic Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

12 Models KBVF-27, 29 Forward/Reverse Speed Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

13 Typical Hi-Pot Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

14 AC Line Input, Motor, and Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

15 Models KBVF-27, 29 Main Speed Potentiometer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

16 Unidirectional Main Speed Potentiometer and Forward-Stop-Reverse Switch Connections . . . . . . . . . . . . 18

17 Bidirectional Main Speed Potentiometer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

18 Models KBVF-27, 29 Voltage Following Signal Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

19 Models KBVF-45, 48 Voltage Following Signal Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

20 Models KBVF-45, 48 Current Following Signal Input Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

21 Manual Start Switch Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

22 Forward-Stop-Reverse Switch Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

23 Form “C” Contact or Relay Forward-Stop-Reverse Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

24 Open Collector Forward-Stop-Reverse Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

25 Enable Switch Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

26 Run/Fault Relay Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

27 Run/Fault Relay Output Contact Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

28 Models KBVF-27, 29 Minimum Speed Trimpot (MIN) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

TABLE OF CONTENTS

ii

igures Page

F

29 SIVFR Offset Trimpot (OFFSET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

30 Models KBVF-27, 29 Maximum Speed Trimpot (MAX) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1 Models KBVF-45, 48 Maximum Speed Trimpot (MAX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3

2 Acceleration Trimpot (ACC) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3

33 Deceleration Trimpot (DEC/B) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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

5 Boost Trimpot (DEC/B) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3

36 Model KBVF-27 Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

37 Model KBVF-29 Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8 Model KBVF-45 Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3

9 Model KBVF-48 Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3

Items Included in this Package:

KBVF Adjustable Frequency Drive, KBVF Series Installation and Operation Manual, Main Speed Potentiometer
Kit with Insulator and Mounting Hardware, 3 Main Speed Potentiometer Quick-Connect Terminals, 2-Wire and
3-Wire Connector Kit (Models KBVF-27, 29 Only), Status Indicator Label, Trimpot Adjustment Tool, CE
Approved Product Information Card, Warranty Registration Card.

TABLE OF CONTENTS (Continued)

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

CON1

CON2

C

ON3

X1 X2

J2

A/M

F - S - R

PWR

S

T

P3P2J1P1

50/60Hz

MAXCL ACCMIN DEC/B COMP

Main Speed Potentiometer (5 k)

see Section 9.4, on page 18.

(Supplied) (Front View):

Adjustable Trimpots:

see Section 13, on pages 23 – 26.

Motor Connection:

see Section 9.1, on page 17.

(Model KBVF-27 Only):

Single-Phase Connection

see Section 9.2, on page 17.

see Section 9.3, on page 18.

Ground (Earth):

Forward/Reverse Speed Selection:

see Section 9.7, on page 20.

see Section 9.8, on pages 20 and 21.

Enable Switch Connection,

Forward-Stop-Reverse Switch Connection:

see Section 6.3, on page 15.

for Accessories and Programming:

see Section 3.5, on page 10.

Communication Port

(Models KBVF-27, 29):

3-Phase Connection

see Section 9.1, on page 17.

(Use L1, L2, L3)

(Use L1, L2)

see Section 6.1.2, on page 15.

see Section 6.1.1, on page 14.

For 60 Hz or 50 Hz Motor Operation:

the Rated Motor RPM:

For Two Times

Automatic Start:

Manual Start Switch Connection:

see Section 9.6, on page 20.

see Section 6.2, on page 15.

Voltage Following Signal Input

see Section 9.5, on page 19.

in Lieu of Main Speed Potentiometer:

see Section 12, on pages 22 and 34.

Diagnostic LEDs:

High

Wiper

Low

Motor

L3

LINE

W

MOTOR

U

L2

AC

L1

VTB1

(Shown without Finger-Safe Cover Installed)

FIGURE 1 – MODELS KBVF-27, 29 QUICK-START CONNECTION DIAGRAM

4

Ground (Earth):

Motor Connection:

see Section 9.2, on page 17.

see Section 9.3, on page 18.

3-Phase Connection:

AC Line

Motor

L3

W

L1

AC LINE

L2

VUTB1

MOTOR

5

0/60HzJ2

C

ON3

CON1

J1

X1 X2

A/M

CL MAX MIN ACC COMPDEC/B

TB1

TB2

see Section 9.1, on page 17.

(Isolated Inputs)

Main Speed Potentiometer (Supplied),

Run/Fault Relay Output Contacts:

(Located Under Ribbon Cable)

Signal Input, and Direction Switch

or Contact Connections:

see Section 12, on page 22.

see Section 13, on page 23.

Adjustable Trimpots:

Diagnostic LEDs

see Section 9.9, on page 21.

see Section 9.4 - 9.5 on Pages 18 and 19.

see Section 9.6, on page 20.

See Section 6.2, on page 15.

Manual Start Switch Connection:

Automatic Start:

see Section 6.1.2, on page 15.

For Two Times the Rated Motor RPM:

see Section 6.1.1, on page 14.

For 60 Hz or 50 Hz Motor Operation:Communication Port

see Section 3.5, on page 10.

for Accessories and Programming:

(Shown without Finger-Safe Cover Installed)

FIGURE 2 – MODELS KBVF-45, 48 QUICK-START CONNECTION DIAGRAM

5

Signal Input, Direction Switch, and Main Speed Potentiometer connections.

Sets the drive for operation with a voltage or current input signal.

Sets the Run/Fault Relay Output Contacts for normally open or closed operation.

All jumpers are shown in factory set positions.

Run/Fault Relay Output Contacts connection.

Sets the operation of the Run/Fault Relay to Run or Fault.

Used to connect the Signal Isolator and Run/Fault Relay to the KBVF.

Sets the drive for operation with the optional Dynamic Brake Module.

MAXOFFSET

NDBM

J5

DBM

CON1

RUN

J4

FAULT

Power on LED.

Maximum Speed adjustment trimpot.

Signal Offset adjustment trimpot.

OV

PWR

TB1

-5V+5V FWD REV COM1SIG1

VOLTCUR

TB2

K1 K2

NC

J2J1

NO

FIGURE 3 – SIVFR CONTROL LAYOUT

(SIVFR is Built-In on Models KBVF-45, 48 and Optional on Models KBVF-27, 29)

6

1 QUICK-START INSTRUCTIONS

mportant – You must read these simplified instructions before proceeding. These instructions are to be

I

sed as a reference only and are not intended to replace the details provided herein. You must read the

u
Safety Warning on, page 8, before proceeding.

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

or single-phase (Terminals “L1”, “L2”) or 3-phase (Terminals “L1”, “L2”, “L3”) AC line input. Models

f

BVF-29, 45, 48 are designed for 3-phase (Terminals “L1”, “L2”, “L3”) AC line input only. See Figures

K
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.

7

Models KBVF-45, 48

nidirectional Speed Operation – Wire the potentiometer to Terminals “+5V” (high), “SIG1” (wiper),

U

“COM1” (low), of Terminal Block TB1 on the SIVFR, as described in Section 9.4.2, on page 18. Be
sure Jumper J1, on the SIVFR, is set to the “VOLT” position (factory setting). A jumper must be

nstalled between Terminals “0V” and “FWD”, of Terminal Block TB1, in order for the drive to operate.

i

Bidirectional Speed Operation – Wire the potentiometer to Terminals “+5V” (high), “SIG1” (wiper),

– 5V” (low), of Terminal Block TB1 on the SIVFR, as described in Section 9.4.2, on page 18. Be sure

“
Jumper J1 (on the SIVFR) is set to the “VOLT” position (factory setting).

.9 SIGNAL FOLLOWING – An analog signal input can be used to control motor speed instead of the

1

Main Speed Potentiometer. The drive output will linearly follow the analog signal input. A Signal
Isolator (SIVFR) is built-in on Models KBVF-45,48 and optional on Models KBVF-27, 29.

Models KBVF-27, 29

Wire the isolated* 0 – 5 Volt DC signal input positive lead (+) to Terminal “P2” and the negative lead (–)
to Terminal “P1”. See Section 9.5, on page 19.

If a non-isolated signal is used, install the SIVFR Signal Isolator (Part No. 9597). The SIVFR accepts voltage (0 to ±2.5

*

hru 0 to ±25 Volts DC) or current (4 – 20 mA DC) signal inputs. See Section 3.5, on page 10.

t

Note: For signal following operation, the Minimum Speed Trimpot (MIN) must be set fully counter­clockwise.

WARNING! The signal input must be isolated from the AC line. Earth grounding signal

wiring will damage the drive and void the warranty. It is highly recommended that the
SIVFR – Signal Isolator and Run/Fault Relay (Part No. 9597) be installed when using signal
following.

Models KBVF-45, 48

Wire the voltage (0 to ±2.5 thru 0 to ±25 Volt DC) or current (4 – 20 mA DC) signal input to Terminals
“SIG1” (+) and “COM1” (–) of Terminal Block TB1 on the SIVFR. For voltage following, be sure Jumper
J1 (on the SIVFR) is set to the “VOLT” position (factory setting). For current following, set Jumper J1
(on the SIVFR) to the “CUR” position. A jumper must be installed between Terminals “0V” and “FWD”,
of Terminal Block TB1, in order for the drive to operate.

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 elec-

trical maintenance person familiar with its operation and the hazards involved. Proper instal-

lation, which includes installation of the Finger-Safe Cover, wiring, mounting in proper enclosure, fusing

or other current protection, and grounding can reduce the chance of electrical shocks, fires, or explo-

sion in this product or products used with this product, such as electric motors, switches, coils, sole-

noids, and/or relays. 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, sili-

con, 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. (SW/FSC 5/2005) Be sure to follow

all instructions carefully. Fire and/or electrocution can result due to improper use of this product.

8

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

epartment for Declaration of Conformity. Installation of a CE approved RFI filter is required. See RFI

D

ilters & Chokes Selection Guide D-321 (Part No. A42027) for selection of filters to meet the Industrial or

F
Residential Standard. Additional shielded cable and/or AC line cables may be required along with a signal
isolator (SIVFR (Part No. 9597)).

INTRODUCTION

3

Thank you for purchasing the KBVF 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

BVF is manufactured with surface mount components incorporating advanced circuitry and technology. A

K

inger-Safe Cover is included for added liability protection.

F

he KBVF Adjustable Frequency Drives provide variable speed control for standard 3-phase and Permanent

T
Split Capacitor (PSC)

1

AC induction motors from 2 thru 5 HP. This manual covers models with single-phase
and 3-phase AC line input. 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 KBVF 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.

Main features include adjustable RMS Current Limit and I

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t Motor Overload Protection.2In 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 startup of high
frictional loads. Electronic Inrush Current Limit (EICL™) eliminates harmful AC line inrush current. The drive is
suitable for machine or variable torque (HVAC) applications. With optional Drive-Link™ software, the drive
can be programmed for DC Injection Braking.

For AC line and motor wiring, a barrier terminal block is provided. Other features include: adjustable trimpots
(MIN, MAX, ACC, DEC/B

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, COMP, CL), customer selectable jumpers (Automatic-Manual Start, Motor
Frequency, Frequency Multiplier, Forward/Reverse). Diagnostic LEDs are provided for power (PWR) and
drive status (ST). A 5 kΩ Main Speed Potentiometer is also included.

A Signal Isolator (built-in on Models KBVF-45,48 and optional on Models KBVF-27, 29) can be used for
unidirectional or bidirectional speed control and accepts voltage and current signal input. Other optional
accessories include: Multi-Speed Board, Programming Kit, and Modbus Communication Module. A connec­tor is provided for easy installation of accessories.

Notes: 1. Optional software is required for PSC motors – contact our Sales Department. 2. UL approved as
an electronic overload protector for motors. 3. In 50 Hz Mode, the DEC/B Trimpot automatically becomes
Adjustable Boost.

3.1 STANDARD FEATURES

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

set for most applications.

• Diagnostic LEDs – Power on (PWR) and drive status (ST). See Section 12, on page 22 and 23.

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

rated RPM. See Section 6, on page 14 and 15.

• Industry Standard Mounting – See Section 7, on page 15 and 16.

• Finger-Safe Cover – Meets IP-20 standard. See Section 5, on page 14.

• Models KBVF-29, 48 contain a built-in cooling fan.

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

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