FCR asynchronous brake motorsU.G. General UseLSMVR --- FCR

Brake motor mains supply • Standard according to IEC 38 that is : – 230/400 V + 10 % – 10 % at 50 Hz ; it provides the following supplies 220/380 V + 5 % – 5 % and 240/415 V + 5 % – 5 % at 50 Hz – 400 V Finish : aluminium casing Routine test, no load test, dielectric test, verification of resistance and of the direction of rotation. Shaft and flange protection against atmospheric corrosion. Individual anti-shock packaging.

General

Closed 3-phase asynchronous brake motors , LSMVR series and stop control brake, according to IEC 34, 72, EN 50281 • Single speed : , 50 Hz.

0.25 to 11 kW

power, 71 to 160 mm frame size, 2, 4, 6 poles 230/400 V or 400 V – Presentation of the brake motor

IP55

protection providing good sealing against liquid projections and dust in an industrial environment. – Variable speed motors : • fitted with thermal probes in the winding (compulsory) Options • Chosen braking moments ; manual release of the brake • Drip cover ; secondary shaft ; • release connector • Industrial encoders and/or forced ventilation

Description of LSMVR --- FCR aluminium three phase brake motors

Designation Material Comments

Finned housing Aluminium alloy- with cast feet or without feet - pressure die-cast • 4 fixing holes for foot mounting • series lifting rings at 160 frame size, optionally 132 and 112 - earth terminal, optional Stator Insulated low-carbon magnetic steel with laminations Cathode copper- the low carbon content assures the stability of characteristics in time- assembled sheet metal - semi-enclosed slots - magnetic circuit in complaince with the frequency variation - soaking allowing resistance to sudden voltage variations due to high voltage cuts of IGBT transistor drives according to IEC 34-17 standard - class F insulation - thermal protection provided by 3 CTP probes (1 per phase) Rotor Insulated low-carbon magnetic steel with laminations - inclined slots- squirrel cage pressure die cast in aluminium (or alloys for special applications)- heat shrinked mounting on the shaft - S or R class dynamically balanced rotor according to frame size Shaft Steel- shaft end fitted with screw and washer - closed keyway End shields Cast iron- drive end and non-drive end, fixed by mounting shafts Bearings - dust and damp protected ball bearings, greased for life, with the following mounting : • blocked at rear to guarantee precise positioning of the load, whatever the direc- tion of the force • heavily preloaded front bearing to eliminate axial oscillation Seals Synthetic rubber - IP 55 front and rear shaft seals Fan Aluminium or cast iron alloy - 2 directions of rotation : straight blades Fan cover Steel sheet- on request, fitted with a drip cover for operation in vertical position, shaft facing down Terminal box Aluminium alloy - IP 55, 4 positions for flange mount motors, opposite the feet for foot mount or foot and flange - fitted with a steel terminal board (brass, optionally) and connection by copper bars - supplied with polyamide cable gland - 1 earth terminal in each terminal box Painting - system I a, RAL 6000 paint finish (green)- resistance to saline mist : 72 h (according to NFX 41002)

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