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Designed to work with standard 230 volt three-phase motors, models are available to operate from 120 volt single-phase, 230 volt single-phase or 230 volt three-phase. Power ranges from ¼ hp to 3 hp (0.2 kW to 2.2 kW).

AC Tech has proven that the promise of the variable frequency drives has arrived! It is now economically justifiable to take advantage of true motor control in place of two-speed or reversing starters, soft-starters, adjustable pitch pulleys or dc drives!

This family of variable frequency drives delivers breakthrough pricing plus superior performance in contactor style packaging.
…plus smoother acceleration and deceleration than soft starts!
…plus reversing with lower machine stress than reversing starters.
…plus multiple speed selection without expensive 2-speed starters.
…plus accuracy and stability of digital controls!
…minus the extra cost of those old solutions!

The User Manual and Quick Reference Guide for the SCN Series Drive, and all AC Tech drives, are available in the AC Tech Library on our website.

General Specifications
Horsepower: ¼ to 3 HP (0.2 to 2.2kW)

Supply Power:
Single Phase: 120, 208 or 240VAC
Three Phase: 208 or 240 VAC
50 or 60 Hz (+10/-15%).

Motors: The SCN is designed to operate standard three-phase induction motors rated for 200 or 230VAC from 0 to 99Hz.

Enclosure: Rugged IP20 with finger safe terminals.

Standard Features
Easy Set-up and Operation: The SCN is easy to use right out of the box or can be customized to meet your specific requirements any one of three convenient ways:

• From the front of the drive
  
• The innovative EPM Programmer.
  
• A PC using AC Tech's free TechLink Software and the EPM Programmer.

Motor Thermal Overload: Approved as a motor protection device for single motor applications by UL and cUL.

Control I/O: 9 non-isolated terminals provide connection for a speed pot, start/stop logic, 3 programmable logic inputs and 1 programmable logic output.

Quiet Operation: Adjustable carrier frequency to 10kHz.

SCN Options
DIN Rail Mounting Kit:
Allows easy mounting of the SCN Drive onto standard DIN Rail.

Dynamic Braking Kit:
Prepackaged resistor modules with control electronics provide easy mounting within the control cabinet.

Through Hole Mounting:
The SCN Series can be ordered for through hole mounting that puts the drive heat sink outside the electrical enclosure for better thermal management and space savings. Ships on black anodized heat sink with gasket that will meet NEMA 4 and NEMA 4X (IP65) construction.

EPM Programmer:
This compact battery operated option allows programming the EPM (on the front of each drive) directly and without power to the drive!
Copy drive parameters easily or write new ones using the backlit LCD display that uses real language programming.

AC Technology Corporation, Inc., 660 Douglas Street, Uxbridge, MA 01569. Tel: 508-278-9100; Fax: 508-278-7873.