3
Introduction
These amplifiers are designed to be used with high performance brushless servo motors.
Care has been taken to assure robust operation. Design consideration for electrical transients
have been implemented on the ac power input and all of the I/O lines. The amplifier operates
over an ac voltage range of 80 to 260 Vac from 45 to 65 Hz. The motor feedback device is a
resolver to assure normal operation at elevated motor temperatures of 115° C for the case,
and 155° C for the motor windings. The resolver allows for both position and velocity
feedback. The motor is further protected by a thermal shutdown thermostat in the motor
windings. The amplifier power switching devices are state of the art IGBT modules. The logic
supply is a switch mode design reducing undesired heat. LED indicators for diagnostics are
provided.
Features
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Efficient power conversion
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High frequency switching
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Resolver feedback
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Simulated encoder signals
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± 10 volts for maximum velocity or torque
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24 volt I/O for Enable Velocity/Torque mode
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Differential analog channel for command
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LED diagnostic indicators
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Motor thermal protection
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AC, I/O and bridge transient suppression
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Totally self contained space efficient design
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Simple screw terminal interface
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AC inrush protection
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Simple one turn visual adjustments
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MOV overvoltage Bus surge protection
