IMfinity® FFB brake motors Standard Efficiency Not Concerned by IE Standards and IE3 High Efficiency Variable speed and Fixed speed Frame size from 71 to 180 Power from 0.25 to 18.5 kW

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Brake ranges Fixed speed 4-pole brakes Associated documentations All brake motors in this catalogue that don‘t fall within the scope of regulation 640/2009 in directive 2009/125/CE they can be offered for sale* on the European Union market. * according to the definition relating to application of European Union regulations concerning products. FFB brake motors offer UG: General CAST IRON SPEED INTEGRATED BRAKE MOTORS Nidec Leroy-Somer - IMfinity® FFB brake motors - 5329 en - 2022.02 /

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Associated Gearbox ranges HELICAL GEARS SOLID SHAFT DIRECT DRIVE HELICAL GEARS HOLLOW SHAFT SOLID SHAFT WORM GEARS HOLLOW SHAFT SOLID SHAFT HELICAL BEVEL GEARS HOLLOW SHAFT SOLID SHAFT ELECTROMECHANICAL ASSEMBLIES VERY HIGH Associated Drives ranges LS IFT/NIE, LSES IFT/IE3 FLSES IFT/IE3 Variable speed Cabinet-mounted variable speed Nidec Leroy-Somer - IMfinity® FFB brake motors - 5329 en - 2022.02 / i Built-in variable speed

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Contents INTRODUCTION IDENTIFICATION - INSTALLATION Nidec Leroy-Somer - IMfinity® FFB brake motors - 5329 en - 2022.02 / i

Nidec Leroy-Somer - IMfinity® FFB brake motors - 5329 en - 2022.02 / i

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Glossary BA Resistive torque Power factor Cast iron motor series Operating factor (%) Rated speed Starting frequency Angular speed of the motor Inertia factor Rated power Relative humidity Output power Frame size Cycle time Starting current Ambient temperature Rated current Travel time Release response time Moment of inertia of the driven load Application response time Moment of inertia of the brake motor Application response time with DC switch-off Weight (brake motor) Total cycle time Apparent rated power Braking time Motor running time in...

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Construction Mounting forms and operating positions Foot mounted Optional cable gland positions Standard position BOTTOM Foot mounted motor A - Top: standard Flange mounted motor A - Top: standard Nidec Leroy-Somer - IMfinity® FFB brake motors - 5329 en - 2022.02 / i

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Operation Definition of the brake motor The brake motor combines, in a single electromechanical assembly - a motor: rotor + stator which forms the drive mechanism - control device: electromagnet + a springs which apply or release the brake, - friction: lining + mating surface which provide the braking action. AERAS OF USE • Intermittent duty: a mechanical device driven by a motor on its own takes a long time to stop if there is little friction. The brake motor ensures shorter, accurate and safe stopping times. It is used in handling where accuracy...

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Operation Duty cycle definitions CONDITIONS AND DUTY CYCLES CONDITIONS By condition”, we mean all the electrical and mechanical values that typify machine operation at a given time. Load Charge DUTY CYCLES (according to IEC 60034-1) By duty”, we mean the stipulated conditions to which the machine is subjected, their respective durations and order of succession over time. 1 - Continuous duty - Type S1 Operation at constant load of sufficient duration for thermal equilibrium to be reached (see figure 1). 5 starts maximum per hour. Fig. 4. - Intermittent...

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Operation Duty cycle definitions S4 OPERATING RATES The different number of starts and driven loads can result in excessive temperature rise in the brake motor. Select the motor so that Zo ≥ Zoc (Zo brake motor starting frequency). Zoc EQUIVALENT CYCLE STARTING FREQUENCY (h-1) Jc + Jc + Jm Jm Zoc Zoc = Zc Jm = Zc Jm CYCLE STARTING FREQUENCY (h-1) n Z n = Zc = c tc tc FM tm OF 100 = MOTOR MOMENTT xINERTIA (kg.m2) FM = T x 100 MOMENT OF INERTIA OF THE DRIVEN LOAD (kg.m2) Zoc = Zc NUMBER OF CYCLEJSTARTS m DURING T TOTAL CYCLE TIME (h) n OPERATING...

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Operation Electromagnet characteristics The DC electromagnet consists of a resin-coated coil in a cast iron yoke. The yoke and the armature form the magnetic circuit. All our coils are made for a DC voltage of 180 VDC (400 or 230 VAC supply) or 20 VDC (24 VAC supply). All the electromagnets are class F and can be continuously supplied with power. Maximum permissible voltage in S1 duty is 480 V, for any product. Since it is difficult to distinguish between some DC coils by size alone, the coil resistance should be measured with an appropriately...

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Operation Braking torques The braking torque Mf is obtained from the friction between a lining made of fibrous composite material and a mating surface. If the braking torque is higher than the highest motor torque, there is a risk of the drivetrain becoming fatigued or breaking. It is therefore advisable to use: Mf = 1.5 x Mn Characteristics Tables section. A non-standard braking torque is possible as an option (see Optional Braking Torque section). If you encounter any difficulty relating to standards, please consult Nidec LeroySomer. The...

IMfinity® LS FFB - LSES FFB - FLSES FFB brake motors Operation Braking torques Linings In order to be able to apply and release the brake, there needs to be displacement of the lining and the armature; this displacement is the air gap. Lining wear must be checked when the air gap is adjusted, by checking the disc thickness The dimension R must never be lower than following values as this would result in damage including total loss of braking torque, without any warning signs. Its replacement is mandatory as R dimension reaches the following values: Brake size FFB1, FFB2, FFB3 FFB4, FFB5 Exceeding...