KB Electronics KBAC-45 User Manual

INSTALLATION AND OPERATION MANUAL
KBAC SERIES
Adjustable Frequency Drive for 3-Phase AC Motors
NEMA 4X / IP65
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 Hz and 60 Hz
3-Phase and PSC
2
AC Induction Motors from Subfractional thru 10 HP
Operates from 115, 208/230, and 400/460 Volt 50/60 Hz AC Line Input
3
NOTE: The drive is factory set for
60 Hz motors. For 50 Hz motors,
see Section 10.4 on page 19.
See Safety Warnings on page 5.
LISTED
IND. CONT.
EQ.
–
70Z
A
4
RoHS
This Manual Covers 2G and 3G Models
3,5
KBAC-24D, 27D, 29, 29 (1P), 45, 48, 217, 217S, 217F, 217SF, 416, 416S, 416F, 416SF
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 for PSC
motors – contact Technical Support. 3. Third Generation (3G) drives are jumper selectable (J12) for standard and sensitive
GFCIs. 4. Installation of a CE approved RFI (EMI) filter is required. 5. Third Generation (3G) drives KBAC-24D, 27D, 29,
29 (1P), 45, 48 are marked "(3G)" on the product label.
All KBAC-217, 416 Series drives are Third Generation (3G).
Copyright © 2017 KB Electronics, Inc.
(See Back Cover)
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KB Electronics KBAC-45 Specifications

General

Brand	KB Electronics
Model	KBAC-45
Category	DC Drives
Language	English

Summary

Quick-Start Instructions

Mounting Instructions

Instructions for mounting the drive vertically with adequate ventilation.

AC Line Input Connection

Connecting the AC line input to Terminal Block TB1.

Motor Connection

Connecting the motor to Terminal Block TB1 terminals U, V, W.

Safety Warnings

Definition of Safety Warning Symbols

Explanation of electrical and operational hazard warning symbols.

Critical Safety Warnings

Critical safety instructions for installation and servicing.

Important Application Information

Motor with External Fan Cooling

Importance of reducing motor load at low speeds and using external cooling.

Electronic Motor Overload Protection

How the drive's I2t Overload Protection and Current Limit work.

Introduction

Performance Features

Description of performance features like Power Start and Slip Compensation.

Protection Features

Mounting

KBAC-24D Mechanical Specifications

Mechanical Specifications

KBAC-27D, 29, 29 (1P), 45, 48 Mechanical Specifications

KBAC-217, 217S, 217F, 217SF, 416, 416S, 416F, 416SF Mechanical Specifications

Electrical Connections

AC Line Input Connection

Connecting AC line input to TB1, including GFCI operation.

Motor Connection

Remote Main Speed Potentiometer Connection

Remote Start/Stop Switch Connections

Voltage Following Connections

Recommended High Voltage Dielectric Withstand Testing (Hi-Pot Testing)

Setting Selectable Jumpers

AC Line Input Voltage Selection (KBAC-24D, 27D Only) (J1)

Setting Jumper J1 for 115V or 208/230V AC line input.

Setting the Drive for 60 Hz or 50 Hz Motor Operation

Motor Horsepower Selection (J2)

Setting Jumper J2 for the correct motor horsepower.

Setting the Drive for Two Times the Rated Motor RPM

Automatic Ride-Through or Manual Start Selection (J3)

Motor Frequency Selection (J4 and J5)

Braking Mode Selection (J7)

Switching Frequency and GFCI Selection (J12)

Drive Operation

Start-Up Procedure

Steps to follow for initial drive start-up.

Trimpot Adjustments

Minimum Speed Trimpot (MIN)

Slip Compensation Trimpot (COMP)

Maximum Speed Trimpot (MAX)

Motor Overload (I2t) with RMS Current Limit Trimpot (CL)

Adjusting the CL trimpot for motor overload protection.

Acceleration Trimpot (ACCEL)

Boost Trimpot (BOOST)

Deceleration Trimpot (DECEL)

DC Injection Brake Trimpot (DECEL)

Diagnostic LEDs

Status LED (ST)

Optional Accessories