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 W
arning,
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.
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.
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+5VFWDREVCOM1SIG1
VOLTCUR
TB2
K1K2
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
QUICK-START INSTRUCTIONS
1
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 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 AC LINE CONNECTION –
1
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
ire the AC line input to Terminal Block TB1. Model KBVF-27 is designed
W
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. T
o select forwar
everse motor dir
d or r
ection, 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
odels KBVF-45, 48
M
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
installed between Terminals “0V” and “FWD”, of Terminal Block TB1, in order for the drive to operate.
idirectional Speed Operation –Wire the potentiometer to Terminals “+5V” (high), “SIG1” (wiper),
B
“– 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).
1.9 SIGNAL FOLLOWING – An analog signal input can be used to control motor speed instead of the
Main Speed Potentiometer. The drive output will linearly follow the analog signal input. A Signal
solator (SIVFR) is built-in on Models KBVF-45,48 and optional on Models KBVF-27, 29.
I
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
thru 0 to ±25 Volts DC) or current (4 – 20 mA DC) signal inputs. See Section 3.5, on page 10.
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 hazar
educe the emission of radio fr
can r
electronic equipment. It is the responsibility of the equipment manufacturer and individual installer to
supply this Safety W
all instructions carefully. Fire and/or electrocution can result due to improper use of this product.
ning to the ultimate end user of this pr
ar
equency interference (RFI) which may adversely affect sensitive
oper shielding, gr
d. Pr
ounding, and filtering of this pr
oduct. (SW/FSC 5/2005) Be sur
oduct
e to follow
8
his product complies with all CE directives pertinent at the time of manufacture. Contact our Sales
T
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
esidential Standard. Additional shielded cable and/or AC line cables may be required along with a signal
R
solator (SIVFR (Part No. 9597)).
i
3 INTRODUCTION
Thank you for purchasing the KBVF Adjustable Frequency Drive. KB Electronics, Inc. is committed to pro-
iding total customer satisfaction by producing quality products that are easy to install and operate. The
v
KBVF is manufactured with surface mount components incorporating advanced circuitry and technology. A
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.
2
Main features include adjustable RMS Current Limit and I
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
3
, 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 k
Ω 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.
9
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