Product/Service

Altivar 61 Variable Speed AC Drives

Source: Schneider Electric

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The Altivar® 61 drive defines ease of use for variable speed drives used in centrifugal pump and fan applications offering the highest level of features, functions and flexibility.

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The Altivar® 61 drive defines ease of use for variable speed drives used in centrifugal pump and fan applications offering the highest level of features, functions and flexibility. Its evolutionary design will reduce installation and start-up time while offering reliable operation, simple diagnostics and energy efficiency.

The Altivar 61 drive enables you to:

  • Reduce energy costs by reducing motor speed
  • Reduce installation costs by eliminating throttling valves or inlet guide vanes typically used to control flow, offering internal connection to major building networks and with quick and simple installation
  • Improve up-time by providing superior voltage dip ride through
  • Reduce life cycle costs of the installation by eliminating mechanical shock to belts and motors
  • Improve indoor air quality and occupant comfort through accurate flow control

Supply fans for heating and air conditioning:

  • Adjustment of flow rates on the basis of actual need
  • Enhance comfort by reducing noise pollution caused by the motor with unique random switching frequency modulation
  • Detection of broken fan belt
  • Automatic restart after most faults

Ventilation fans exhaust/smoke extraction

  • Forced start function with fault inhibition and fireman's override
  • For high inertia applications, braking possible using resistors
  • Run permissive damper input
  • Catch on the fly by speed search regardless of the direction of rotation to start wind milling fans

Cooling tower fans

  • Suppression of mechanical resonance using skip/jump frequencies
  • Loss of follower with alarm management
  • External fault input
  • Adjustments to eliminate gear box backlash and cogging

Multipump: water distribution

  • With the multipump option card, the Altivar 61 drive provides flexibility, user-friendliness and adaptability for the management of multiple pump installations
  • The multipump option card contains a variety of pre-programmed function and features to manage multipump installations, such as monitor and fully control the installation by switching and managing the wear and tear between pumps

Municipal water pumps

  • Safety and protection of pump: Detection of current threshold
  • Limitation of operating time at low speed
  • PTC probe management
  • Auto-restart function with configurable response
  • Underload and overload detection

Hot water and chilled water pumps

  • Underload and overload detection with alarm
  • Low flow detection
  • Sleep/wake function
  • Power used, power on time, motor run time

The Altivar 61 drive offers the following values:

  • For OEMs, it offers customizable capability that allows the OEM to add value and provide a unique solution.
  • For System Integrators, it offers flexibility, functionality and wide product range to adapt to a wide variety of job requirements
  • For End User installations, it offers quick installation, simple start-up, and on-board diagnostics for uncomplicated maintenance.

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