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INTRODUCTION
Thank you for purchasing the H3 adjustable speed drive. This adjustable frequency solid-state AC drive
features "True Torque Control" - Toshiba's 'vector algorithm' that enables motors to develop high starting
torque and compensates for motor slip. The H3 also features a multi-lingual forty-character LCD display,
RS232 port, dynamic braking transistor and ground fault, overload, and overcurent protection. These fea-
tures, combined with built-in special control features such as PID, drooping, trim, and dancer control, make
the H3 suitable for a wide variety of applications that require unparalleled motor control and
reliability.
It is the intent of this operation manual to provide a guide for safely installing, operating, and maintaining the
drive. This operation manual contains a section of general safety instructions and is marked
throughout with warning symbols. Read this operation manual thoroughly before installing and operating
this electrical equipment.
All safety warnings must be followed to ensure personal safety.
Follow all precautions to attain proper equipment performance and longevity.
We hope that you find this operation manual informative and easy to use. For assistance with your H3, for
information on our free drive application school, or for information on Toshiba's complete line of motors,
adjustable speed drives, switchgear, instrumentation, uninterruptable power supplies, PLCs, and
motor control products, please call toll free (800) 231-1412 or write to our plant at: Toshiba International
Corporation, 13131 W. Little York Road, Houston, TX 77041-9990.
Again, thank you for your purchase of this product.
COPYRIGHT © [MARCH, 2008] TOSHIBA INTERNATIONAL CORPORATION