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Watlow Electric Power Series User Manual

Features and benefits

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P O W E R S E R I E S C O N T R O L L E R S

M i c ro p ro c e s s o r- B a s e d
SCR Power Contro l l e r
Designed fo r
Application Flex i b i l i t y

Watlow has manufactured solid state power controllers for
over thirty years. Watlow’s POWER SERIES represents the
latest in SCR power controller technology. This microproces-
sor-based product offers features and application flexibility
unmatched by any other SCR power controller on the market
today.

Capabilities of Watlow’s POWER SERIES controllers include
single-phase and three-phase models from 65 to 250 amps.
Field configurable phase angle or zero cross firing improves
application flexibility on site where you need it.The 50/60Hz
independent operation allows utilization almost everywhere
in the world without special calibration considerations. Serial
communication utilizing Modbus

protocol provides remote

control setup and monitoring of load status from a nearby
computer station or control room.

On-board semiconductor fusing improves reliability by
protecting the SCRs from heater short circuits. Plus,
on-board heater bakeout and control diagnostics can help
eliminate initial start up problems. All these benefits are in a
touch-safe package that can be quickly and easily mounted
in your control cabinet.

Watlow’s POWER SERIES controllers are UL

®

and C-UL

®

recognized, so users can be assured that the controllers
meet world safety and operational standards.

UL

®

and C-UL

®

are registered trademarks of the Underwriter’s Laboratories, Inc.

Modbus™ is a trademark of Schneider Automation Inc.

Features and Benefits

Microprocessor-based technology

Extremely versatile and field configurable

Snap-fit on a pre-mounted plate

Simplifies installation

Models 65 through 250 amp ratings

Handles a wide range of loads

Adjustable soft start

Provides application flexibility

Heater and control diagnostics capability

Monitors actual heater and controller performance

Electrically touch-safe package

Enhances safety for installer and users

Serial communications with Modbus

RTU protocol

Provides computer control and/or monitoring

Multizone capability

Increases application flexibility and reduces panel space

1241 Bundy Boulevard
Winona, Minnesota 55987-5580 USA
Phone: 507-454-5300
Fax: 507-452-4507
Internet: www.watlow.com
e-mail: [email protected]

WIN-PS-0403

© 2003 Watlow Electric Manufacturing Company

Printed in the USA on Recycled Paper, 15% Postconsumer Waste