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OTAC-01

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The OTAC‑01 is a precision pulse encoder interface module designed for industrial automation systems.
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Technical specifications for OTAC-01

  • Manufacturer:
    ABB
  • Part Number:
    OTAC-01
  • Product Family:
    ABB Drives
  • Maximum Input Frequency:
    200 kHz
  • Input Voltage Range:
    7.5 to 26 V
  • Nominal Input Impedance:
    660 ohm (at 24 V DC)
  • Operating Temperature Range:
    -20°C to +60°C (-4°F to +140°F)
  • Storage Temperature Range:
    -40°C to +85°C (-40°F to +185°F)
  • Protection Class:
    IP20
  • Compliance:
    CE, UL, RoHS
  • Weight:
    0.2 kg
  • Estimated shipping dimensions:
    18x19.5x17.8cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications
 

Features:

  • Interface Between the Pulse Encoder and ACS550 Drive Control System
  • Combines Capability of High-Speed Signal Processing with Differential/Single-Ended Interface
  • Operates in Conjunction with Standard Digital Pulse Encoders and ACS550 Series Drives
The OTAC-01 operates as the Pulse Encoder Interface Module in an ACS550 drive system, providing reliable speed and position feedback from digital pulse encoders to the drive control system within the ACS550. It continuously converts incoming encoder pulse signals (differential or single-ended) to regulated feedback data and distributes this information through the drive control bus to support steady state operation of all speed and position control functions. Seamless signal transfer is standard with the OTAC-01, however using an optional Differential Output Configuration will provide enhanced noise immunity and signal integrity in demanding industrial environments. The OTAC-01 has made improvements in several areas over previous encoder interface designs in addition to incorporating universal 5V and 15V encoder power supply capability within the ACS550 drive family.

The OTAC-01 provides essential encoder interface functions common to the entire drive control system, and is a critical component of the speed and position feedback path, directly affecting the accuracy and reliability of motor control in the overall ACS550 drive system. One OTAC-01 module is required per encoder feedback channel depending on the desired control precision and application requirements. The OTAC-01 occupies only a single slot in the option slot of the ACS550 drive and is always located in Slot 1 or Slot 2 (the dedicated option slots, the primary expansion positions).

For Dual Encoder Feedback applications, the ACS550 System requires a second OTAC-01 pulse encoder interface module installed in the redundant slot. In addition to standard single encoder operation, the redundant configuration also performs automatic feedback validation. The ACS550 dual encoder configuration executes comparison using the internal signal processing specified in the drive control options. Using this method, the redundant encoder system continually monitors the health of both feedback channels. If the system detects that the primary encoder is no longer providing stable output (outside configured speed/position tolerance levels), it will automatically transfer the control to the secondary encoder and place an event in the Drive Event Log.

The OTAC-01 Universal AC Power Supply may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
 
ABB OTAC-01 Pulse Encoder Interface Module Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

ABB OTAC-01 Pulse Encoder Interface Module Specs

General

  • Manufacturer ABB
  • Model OTAC-01
  • Condition New Original ready stock
  • Product Family OREL-01,OHDI-01,RCNA-01
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Description
It functions as a reliable intermediary between rotary position sensors (encoders) and control or monitoring systems, converting and conditioning encoder pulse signals for use in distributed control systems (DCS), programmable logic controllers (PLCs), and related feedback applications.

The OTAC-01 Pulse Encoder Interface Module is designed to enable high-speed signal processing in industrial applications that require accurate pulse counting and event monitoring. With a maximum input frequency of 200 kHz, it supports fast, real-time data processing, making it ideal for use in systems that monitor rotating machinery, motion control, and other high-frequency pulse-based applications.

The module is versatile, offering an input voltage range of 7.5 to 26 V, and features a nominal input impedance of 660 ohms (at 24 V DC). This makes it compatible with a wide range of pulse encoders and sensors, ensuring seamless integration into existing systems. Its robust design ensures reliable operation, even in harsh industrial environments.

This module is engineered to interface rotary encoders with control hardware, ensuring clean, stable pulse signal transmission from rotating machinery to digital logic and monitoring systems. By providing a dedicated interface path, the OTAC‑01 enhances signal fidelity and facilitates precise position or speed feedback within larger automation frameworks.

Alternative Names
FEN‑01 NTAC‑01 FEN‑01
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the maximum input frequency of the OTAC-01?
The OTAC-01 supports a maximum input frequency of 200 kHz, allowing it to handle high-speed pulse signals for accurate real-time monitoring.
What is the input voltage range of the OTAC-01?
The module can operate with an input voltage range of 7.5 to 26 V, providing flexibility to integrate with a variety of pulse encoders and sensors.
What is the nominal input impedance of the OTAC-01?
The nominal input impedance is 660 ohms when operating at 24 V DC, which ensures compatibility with a wide range of input sources.

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