BENSHAW RediStart EXEXMVRMX3 Series, User Manual

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General Overview Of A Reduced Voltage Starter
General Overview The RediStart EXMVRMX
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motor starter is a microprocessor-controlled starter for three-phase motors. The
starter can be custom designed for specific applications. A few of the features are:
•
Solid state design
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Reduced voltage starting and soft stopping
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Closed-loop motor current control, power (kW) control, torque control
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Programmable motor protection
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Programmable operating parameters
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Programmable metering
•
Communications
Each starter can operate within applied frequency values 23 to 72Hz and line voltage of: 10,000 to
13,800VAC
The starter can be programmed for any motor FLA and all of the common motor service factors. It enables
operators to control both motor acceleration and deceleration. The RediStart EXMVRMX
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can also protect
the motor and its load from damage that could be caused by incorrect phase order wiring.
The starter continually monitors the amount of current being delivered to the motor. This protects the motor
from overheating or drawing excess current.
Features The enhanced engineering features of the starter include:
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Multiple frame sizes
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Universal voltage operation
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Universal frequency operation
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Programmable motor overload multiplier
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Controlled acceleration and deceleration
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Phase rotation protection
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Regulated current control
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Electronic motor thermal overload protection
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Electronic over/under current protection
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Single phase protection
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Line-to-line current imbalance protection
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Stalled motor protection
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Programmable metering
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Passcode protected
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Programmable Relays
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Analog output with digital offset and span adjustment
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Analog input with digital offset and span adjustment
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Voltage and Current Accuracy of 3%
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Slow speed (Cyclo Conversion) 1.0 – 40.0% forward and reverse
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Motor Winding Heater (Anti-Condensation)
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Anti-windmilling brake
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PTC Thermistor
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99 Event Recorder
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9 Fault Log
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Real Time Clock
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Zero Sequence Ground Fault
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Backspin Timer
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Starts per Hour
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Time between Starts
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PORT (Power Outage Ride Through)
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16 RTD with O/L Biasing
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D.C. Injection Braking
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1 - INTRODUCTION