Kb-electronics KBVF-48 Manual do Utilizador descarregar pdf (Página 9)

INTRODUCTION

Thank you for purchasing the KBVF 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

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

inger-Safe Cover is included for added liability protection.

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

Split Capacitor (PSC)

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 applica-

tions 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

t Motor Overload Protection.

In addition,

Adjustable Slip Compensation with Static Auto-Tune and Boost provides high torque and excellent load reg-

ulation 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

, 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 connec-

tor 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.

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

ilters & 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 (SIVFR (Part No. 9597)).

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