5193

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SENSITRON
SEMICONDUCTOR
SMCV6G Series
Digital Vector Drive
PRODUCT BRIEF
PB 5127, Preliminary
COMPLETE MOTOR CONTROL SOLUTION:
POWER CONDITIONING & MOTOR CONTROL
The Digital Vector Motor Drive is a DSP based motor
controller designed for high reliability and industrial motor
control applications. The flexibility of this design allows for
use of a single device/part number for multiple motor
applications with few hardware changes. This motor
controller is composed of two internal assemblies in a
small footprint module: the Motion Control Engine and a 3Phase Bridge. The Motion Control Engine is
programmable via an isolated RS-232 input port, and the 3
Phase Bridge is rated design to 40A, 1000V. The
sinusoidal vector drive with space vector modulation
control design allows for maximum utilization of the DC
bus voltage and provides smooth torque control. Typical
DC bus voltage operating range is 100V to 800V. The
sensorless algorithm allows start up to be tuned for almost
any load. Operating speed range is typically 10 to 1 with
maximum speed more than 8000 RPM (6-pole motor).
Features
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Sinusoidal Sensorless Speed Control
Vector Drive FOC) with Space Vector PWM
75A peak phase, 800V steady state
operation
Torque limiting
IGBT’s rated to 1200V
Top Speed of 8000+ RPM
Re-configurable Firmware
Isolated RS232 interface
Digital Tach and Direction output via RS232
Smart gate drivers with de-sat protection
Boot-strap powered high sided gate driver
Integrated phase current sensors
DC bus voltage sensor
Protection
 DC Bus Overvoltage
 DC Bus Undervoltage
 DC Bus Critical Detection
 Phase Loss Detection
 Zero Speed Detection
Operating Baseplate Temperature
 -40°C to 85°C
Power Requirements
 Bus Voltage to 800 VDC
 +3.3V +/-5%
 +5.0V +/-5%
 +15V +/-10%
Application Areas:
This product is intended to be used in high reliability military and industrial motor control applications. The
design can be used for pump and fan applications in the following markets:
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Military Ground Vehicles
Industrial Equipment
Heavy Duty Vehicles
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Air Handlers
Lifts
©2009 Sensitron Semiconductor  221 West Industry Court  Deer Park, NY 11729-4681
Phone (631) 586 7600 Fax (631) 242 9798  www.sensitron.com  [email protected]  Page 1 of 3
SENSITRON
SEMICONDUCTOR
SMCV6G Series
Digital Vector Drive
PB 5114, Preliminary
BLOCK DIAGRAM
The vector drive is programmed via an Isolated RS232 Interface to set the motor and control parameters.
The Motor Control Engine has an inner torque loop (Sinusoidal/Space Vector/FOC -Field Oriented Control)
and an outer speed loop. The torque loop uses a digitally tunable P+I controller and integrated phase
current sensors. The speed loop uses a digitally tunable P+I controller and speed feedback derived from
the FOC. Sensorless startup is performed open loop using a Volts-per-Hertz algorithm. The Volts-per-Hertz
startup parameters are digitally configurable. Space vector modulation allows for the motor line to line
voltage to reach the full DC Bus Voltage without waveform clipping unlike other sinusoidal control methods.
SOFTWARE
The device is configured using Excel based software along with a special motor drive GUI. The GUI configures
the motor parameters through the RS232 interface. The motor can be controlled directly from the GUI and
parameters modified directly from the GUI. A built in datalogger feature allows monitoring of motor drive
performance.
The list below shows the motor input parameters and typical Application parameters:
Motor Input Parameters
RPM
Current
Poles
Inertia
Stator Resistance
Inductance Lq and Ld
Kt, Ke
Application Information
Maximum RPM
Nominal dc bus voltage
Current Limits – Start, Regen
Running Speed – Max, Min, Coast, Stop
Protection Levels – Speed, Phase Loss, DC Bus
Speed Regulator Bandwith and Time Constant
©2009 Sensitron Semiconductor  221 West Industry Court  Deer Park, NY 11729-4681
Phone (631) 586 7600 Fax (631) 242 9798  www.sensitron.com  [email protected]  Page 2 of 3
SENSITRON
SEMICONDUCTOR
SMCV6G Series
Digital Vector Drive
PB 5114, Preliminary
OUTLINE DRAWNG:
NOTE: Evaluation boards, Software GUI and additional technical information are available. Please
contact the factory.
PART NUMBER ORDERING INFORMATION:
Please reference part number SMCV6Gxxx-xxx-1
DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product
characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the
datasheet(s).
2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical
equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by means of users’
fail-safe precautions or other arrangement .
3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of
the user’s units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any
other problems that may result from applications of information, products or circuits described in the datasheets.
4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from use at
a value exceeding the absolute maximum rating.
5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor.
6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of Sensitron
Semiconductor.
7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will hinder
maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third party. When
exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and regulations.
©2009 Sensitron Semiconductor  221 West Industry Court  Deer Park, NY 11729-4681
Phone (631) 586 7600 Fax (631) 242 9798  www.sensitron.com  [email protected]  Page 3 of 3
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