PARKER AH385870U001

Parker SSD Encoder Feedback Board for 590+ Drives

Description

This is the AH385870U001 Tacho Calibration and Encoder Feedback Board for the Parker SSD (Eurotherm) 590+ series of DC variable speed drives. This essential plug-in module allows the drive to accurately read speed feedback from either an analog tachogenerator or a digital encoder. It provides the necessary signal conditioning and scaling, configured via onboard DIP switches, to ensure precise motor speed control in demanding applications.

Specifications

• Manufacturer: Parker SSD Drives
• Part Number: AH385870U001
• Compatibility: Parker SSD 590+, 591+ Series DC Drives
• Function: Feedback signal scaling and conditioning
• Input Types: Analog Tacho, Digital Encoder
• Configuration: Dual 10-position DIP switches

Label Info

• Part No: AH385870U001
• Board Revision: ISS 4

Application

This board is installed within a Parker 590+ series drive to enable closed-loop motor speed regulation. It is vital for applications requiring high accuracy and dynamic response, such as in printing, converting, and material handling machinery.

Country of Origin

Manufactured in the United Kingdom.

CO2 Impact

By purchasing this pre-owned component, you are actively participating in the circular economy. The reuse of this board avoids the production of a new one, saving an estimated 2.0 kg of CO2. This is equivalent to the emissions from driving a car for 10 kilometers.

Availability

This item is a readily available, tested spare part for an obsolete drive series. Order now from spareparts2day for expert support and fast delivery.

FAQ

What are the DIP switches on the AH385870U001 board used for?

The dual DIP switches are used to set the scaling factor for the incoming feedback signal. This allows the board to correctly calibrate different tachogenerator voltages or encoder pulse rates to the standard internal voltage reference of the 590+ drive, ensuring accurate speed regulation.

Is this board compatible with the newer Parker DC590+ series drives?

No, this feedback board is specifically designed for the older 590+ series. The newer DC590+ series utilizes different feedback technology cards and connection methods. You must use the AH385870U001 only with the compatible 590, 590+, 591, and 591+ series drives.

Can this board accept both tachogenerator and encoder feedback signals?

Yes, this board is a versatile feedback option. It can be configured to accept analog voltage signals from a DC tachogenerator or pulse train signals from an incremental encoder. The correct configuration and scaling are set via the DIP switches and potentially some jumper links on the main drive controller.

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Last Update: Friday, March 13, 2026