Aerotech Encoder Conditioning Unit Manual page 5

ECU Hardware Manual
Chapter 1: Encoder Conditioning Unit (ECU)
The ECU interface is designed for use with any 1 Vpp analog encoder.
It dynamically applies Automatic Offset, Balance and Gain Control (AOC, ABC, AGC) to the input signals.
Accurate, constant amplitude 1 Vpp industry standard signals are then output.
A tri-colored LED indicates input signal strength and allows ease of setup for optimum performance. If this
LED is not visible when the interface is installed, a separate external setup signal can be used and a
calibration cycle also helps to simplify installation.
These features result in the output signals having very low cyclic error, typically less than 50 nm.
The interface is fully RoHS compliant and also supports readheads with single or dual limit outputs.
Compatible with all standard 1 Vpp analog output readheads
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Outputs accurate, industry standard, 1 Vpp analog differential signals
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Low cyclic error
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Tri-color integral setup LED
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User selectable automatic gain control (AGC)
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Automatic offset and balance control (AOC and ABC)
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Single or dual-limit capability
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Encoder Conditioning Unit
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