Cut Sheet

D
ATA SHEET D-810
KBAC SERIES
ADJUSTABLE FREQUENCY DRIVES
For 3-Phase AC Motors
NEMA-4X / IP-65
Models KBAC-24D, 27D, 29, 45, 48
W
ashdown and Watertight for Indoor and Outdoor Use
Rated for 208-230 and 400/460 Volt 50 & 60 Hz
3
-Phase AC Induction Motors from Subfractional thru 5 HP
Operates from 115, 208/230, and 400/460 Volt 50/60 Hz AC Line
TYPICAL APPLICATIONS
• Conveyors • Packaging Equipment • Door & Gate Openers
• HVAC • Indexers • Portable Equipment used with GFCIs
1
STANDARD FEATURES
• Industrial Duty Die-Cast Aluminum Case with Hinged Cover – A
vailable
i
n black finish or FDA approved white finish.
• S
imple 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 motor horsepower without recalibration.
•
Diagnostic LEDs – Power on (POWER) and drive status (STATUS).
•
Run/Fault Relay Output Contacts – Can be used to turn on or off equip-
ment or to signal a warning if the drive is put into the Stop Mode or a fault
has occurred.
•
Start/Stop Switch – Pr
ovides 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.
•
Compatible with GFCIs (with optional software).
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
PROTECTION FEATURES
• Motor Overload (I
2
t) with RMS Current Limit – Provides motor overload
pr
otection which pr
events motor burnout and eliminates nuisance trips.
2
• Electronic Inrush Current Limit (EICL™) – Eliminates harmful inrush AC line
curr
ent during startup.
•
Short Circuit – Shuts down the drive if a short circuit occurs at the motor
(phase-to-phase).
•
Regeneration – Eliminates tripping due to bus overvoltage 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 T
ransient Suppr
ession.
• Microcontroller Self Monitoring and Auto-Reboot.
TRIMPOT ADJUSTMENTS
• Minimum Speed (MIN) • Maximum Speed (MAX)
•
Acceleration (ACC) • Deceleration (DECEL)
3
• Slip Compensation (COMP) • Slip Compensation (COMP)
•
Boost (BOOST) • Jog (JOG)
* Requires CE approved RFI Filter. See AC Line Filters, in Optional Accessories.
Notes:
1.
Requires optional software. 2. UL a
pproved as an electronic overload protector f
or motors.
3. When the drive is set f
or DC Injection Braking,
The DECEL Trimpot is used to adjust the braking intensity and time.
DESCRIPTION
The KBAC Adjustable Fr
equency Drives are variable speed controls
housed in a NEMA-4X / IP-65 washdown and watertight enclosure. They are
designed to operate 208-230 and 400/460 Volt 50 & 60 Hz 3-phase AC induc-
tion motors from subfractional thru 5 HP. The sine wave coded Pulse Width
M
odulated (PWM) output operates at a carrier frequency of 16 kHz which pro-
vides high motor efficiency and low noise. Adjustable Linear Acceleration and
D
eceleration make the drive suitable for soft-start applications.
Due to its user-friendly design, the KBAC is easy to install and operate.
Tailoring to specific applications is accomplished with selectable jumpers and
t
rimpots, 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
2
t Motor Overload
Protection.
2
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 startup 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 on or
off equipment or to signal a warning if the drive is put into the Stop Mode or 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 fea-
tures include a Barrier Terminal Block to facilitate wiring of the AC line and motor,
adjustable trimpots (MIN, MAX, ACCEL, DECEL, COMP
, CL, JOG, BOOST), cus-
tomer selectable jumpers (Line V
oltage (dual voltage models only), Motor
Horsepower, Automatic or Manual Start/Reset, Motor Frequency, Frequency
Multiplier
, Fixed/Adjustable Boost, Regenerative/Injection Braking, “Run” or
“Fault” Output Relay Operation, NO/NC Stop Contact, Constant/Variable Torque,
Factory Assignable Function).
Optional accessories include: Forward-Stop-Reverse Switch, On/Off AC
Line Switch, Run-Stop-Jog Switch, Signal Isolator, Auto/Manual Switch, Class
“A” AC Line Filter, Multi-Speed Board, Programming Kit, Modbus Communi-
cation Module, and Liquidtight Fittings. A connector is pr
ovided for easy installa
-
tion of accessories.
A Complete Line of Motor Drives
*
KBAC-48
P/N 9540 (black)
P/N 9541 (white)
KBAC-24D
P/N 9987 (black)
P/N 9988 (white)