Posts Tagged ‘variable speed’

Siemens: I/O extension module for converters

Thursday, October 26th, 2017 von admin

For the smallest converter in its portfolio, the Sinamics V20, Siemens is now offering an extension module for the capture and output of digital and analog signals. The Sinamics V20 I/O extension module is mounted on the converter using Plug&Play technology, and provides two additional input and output interfaces, each for 400 volts., increasing both the flexibility and the scope of the Sinamics V20. Using connecting ports on the front and back, the extension module can also be combined with additional accessories from the Sinamics V20 portfolio. These include for instance the BOP (Basic Operator Panel) and the BOP interface module.

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Sulzer: Repair of variable speed drives reduces costs and downtime

Thursday, April 20th, 2017 von admin

As the legislation surrounding the efficiency of electric motors continues to tighten, the volume of variable speed drives (VSDs) in service increases. Often specified by the motor manufacturer as part of the original installation – or retrofitted to improve efficiency – the drive contains both hardware and software that is designed to work with a motor in a specific application. So, what happens if the drive ceases to operate? Brian Park, Regional Sales Manager for Scotland at Sulzer, looks at the advancing technology and the maintenance processes that need to keep pace.

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KSB: New variable speed system for HVAC applications

Monday, February 6th, 2017 von admin

Etaline pump with PumpDrive Eco

This year’s ISH trade fair in Frankfurt will see KSB present a new 230 V version of its motor-mounted PumpDrive Eco variable speed system. Available for motor ratings ranging from 0.12 to 1.1 kW, this new version has been specially tailored to the requirements of HVAC applications.

PumpDrive Eco features sensorless differential pressure control which comes preset for use with Etaline L. All key parameters relating to pump and motor data are also set at the factory. This reduces the time required for pump set commissioning.

Alongside wireless Bluetooth modules for permanent installation supplied optionally, Bluetooth couplers are now also available. These can be plugged onto the service interface of PumpDrive Eco from the outside. This arrangement improves usability by also allowing communication with systems that do not have their own BT interface. The myPumpDrive app enables users to communicate with the system and make settings via smartphone.

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