Carotron Brand Products are Made in USAPrecision Frequency to Voltage Converter
Model C11451-000

General DescriptionStandard FeaturesSpecificationsApplication ExampleDimensions/Connections


General Description

Precision Frequency to Voltage Card Model C11451-000Model C11451-000 Precision Frequency to Voltage converter card is designed to provide a means of converting digital encoder frequency signals to analog voltage suitable for tachometer feedback control or speed reference in motor control systems. Sine wave signals of 1 to 20 volts peak at up to 30 KHz or square wave signals from 10 to 12 volts peak at up to 100 KHz, 50% duty cycle may be used as input (110 KHz may be used if the square wave has no more than a 25% duty cycle). The frequency signal is optically isolated from the output circuitry so that the signal may also be used with digital instrumentation which may be grounded. Designed for use with Carotron non-regenerative and regenerative motor controls, Model C11451-000 may also be used with drives from other manufacturers if the feedback can be scaled to work with the nominal 12VDC output range. For regenerative operation, a buffered armature voltage signal must be supplied for the polarity switching circuit. This voltage must be positive with respect to circuit common when the drive requires positive tach feedback and negative when the drive requires negative tach feedback. An isolated +12VDC power supply rated at 100mA maximum is provided to supply encoders or magneto-resistor sensors.

Input ranges of up to 1024 pulses per revolution on motors with a maximum speed of 6000 RPM will provide a nominal output of 0 to 12VDC. Multi-turn potentiometers for OFFSET, GAIN and BIAS are provided to allow precise adjustment for the desired output. For systems where the output voltage is to be used as a speed reference, terminals are supplied for an optional external TRIM pot. for either manual or dancer control. A single turn TRIM RANGE pot. is supplied on the C11451-000 unit to limit the range of the external TRIM pot.

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General DescriptionStandard FeaturesSpecificationsApplication ExampleDimensions/Connections

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Precision Frequency to Voltage Converters
Model C11451-000