FEATURE DRIVES & CONTROLS Clarity on motor requirements
Raj Vagdia, manager of BEAMA’s Rotating Electrical Machines Group, offers his insight into the organisation’s clarification on the amended Electric Motor Ecodesign requirements
T
he minimum efficiency levels for voltage electric motors that can be
marketed in Europe have been changed with a recently passed amendment by the European Commission to the ‘Motors Regulation 640/2009: Ecodesign requirements for electric motors’. To assist manufacturers in their preparations for the regulation coming into force on 1st January 2015, BEAMA’s Rotating Electric Machines Group has obtained a definitive clarification of the amendment from the National Measurement Office (NMO). The NMO confirmed to BEAMA that,
‘Any IE2 motor placed on the market prior to 1st January 2015 can be sold after this date but any motors placed on the market in 2015 must comply with the new regulation, including being equipped with a Variable Speed Drive (VSD)’.
MOTORS CURRENTLY IN SCOPE The Motors Regulation 640/2009 came into effect on 16th June 2011. From that date onwards only low voltage motors of efficiency class IE2 or greater could be put onto the market in Europe. The next stage of this regulation comes into force on 1st January 2015 when the minimum efficiency class rises to IE3. From this date onwards, motors with a minimum efficiency class IE2 must be equipped
with a VSD. On 6th January 2014, the EU
Commission formally published in the Official Journal Regulation 4/2014 which amends Regulation 640/2009. This amendment means that only motors that are specifically designed to operate in altitudes exceeding 4,000m above sea level, in ambient air temperatures between 60°C and -30°C, and in maximum operating temperatures above 400°C are excluded. This means that the amendment will bring into the scope of the regulation a number of motors which were previously exempt. The regulation states that certain motors
must be ‘equipped with’ a VSD, yet it does not define this term which has the
NEW RANGE OF DC SERVO CONTROLLERS
Sprint Electric is set to launch a new range of DC servo controllers at this year’s SPS/IPC/Drives, international trade fair in Nuremberg, Germany. The XLV is a miniature, fast response DC motor speed controller. The extended XLV range is designed for use with permanent magnet brushed DC servo motors rated from 4-12A, offered in a compact DIN-rail mounting package. The XLV range of controllers are suitable for use on DC supplies up to 48V and can be used in either current (torque) or speed control modes. For highly dynamic applications, a shaft mounted DC tacho-generator is recommended for speed feedback, but in less demanding applications, armature voltage feedback (Avf) can be used. The reference signal for both current and speed control can be either
bipolar (+/-10V) or unipolar (0-10V). Motor speed can be controlled in both forward and reverse directions. An adjustable current limit and fast acting current control loop protect the controller and motor from sustained overloads. The 400 XLV model for motors rated up
to 4A, the 800 XLV for 8A and the 1,200 XLV for 12A are additions to the miniature 200 XLV model. Despite measuring just 60mm wide, 120mm high and 105mm deep for the 400 and 800 models, and 69mm wide for the 1,200 model, the XLV is a genuine four quadrant drive that can motor and brake in
both directions of rotation to offer control of motor speed and torque.
Sprint Electric
www.sprint-electric.com T: 01243 558 080
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Above: BEAMA has secured clarification on the amended Electric Motors Ecodesign requirements
Below: Raj Vagdia, manager of BEAMA’s Rotating Electrical Machines Group
potential to confuse manufacturers and negatively impact the industry. BEAMA’s Rotating Electrical Machines
Group discussed this statement with the NMO to obtain a definitive clarification - the NMO’s interpretation is that ‘equipped with’ related to putting into service. ‘Putting into service’ has been defined as ‘the first use of a product for its intended purpose by an end user in the community’, and the NMO is keen that this is not to be confused with ‘placing a product on the market’, which is defined as ‘making a product available for the first time on the community market with a view to its distribution or use within the community.’ This means that any IE2 motor placed
on the market prior to 1st January 2015 can be sold after this date, but any motors placed on the market on or after 1st January 2015 must comply with all applicable requirements, including being equipped with a VSD.
RATING PLATES The amendment to the regulation also addresses rating plates and the information required to be marked on rating plates as detailed in Annex I of the regulation. The regulation now states that where the size of the rating plate makes it impossible to mark all the information referred to in point 1 of the regulation, only the nominal efficiency (ƞ) at full rated load and voltage (UN
) shall be marked.
BEAMA
www.beama.org.uk T: 0207 793 3000
30 NOVEMBER 2014 | ELECTRICAL ENGINEERING
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