Brushless motor with integrated electronics BLDC 48 Description The BLDC 48 is a variable speed brushless DC motor with integrated drive electronics providing up to 12 watts continuous output power. A number of options provide the choice of: 12 or 24 Vdc operation, 8 or 12 Watt output power options Choice of models providing clockwise or counter clockwise operation 2 wire versions provide variable speed depending on supply voltage 4 wire versions provide variable speed control at full torque proportional to a 0-5V control signal & a 6 pulse/rev monitor signal The units provides a compact solution to a variety of light industrial applications such as conveyor drives, tensioning mechanisms, paper feed and pump drives. Scientific applications include stirring equipment, peristaltic pumps, mixing machines, as well as any variable speed application that requires long maintenance free life and operating speeds from 100 to 3000 rpm. The motors design incorporates an external rotor and magnet system which provides particularly smooth running, high grade bearings and drive electronics, all of which are housed in an enclosure suitable for use up to IP55 operating conditions. The inclusion of the drive electronics within the motor greatly simplifies the use of the motor as well as reducing overall system cost. Dimensions: mm Dimension L 20 54 220 5.989+ 0.002 Dimension L BLDC48-8 series: 30 mm 4 point fixing: M3 x 3 deep BLDC48-12 series: 36 mm equi-spaced on 32 mm PCD 2.85 25 h11 Specification Model BLDC48-8L BLDC48-12L Direction of rotation cw ccw cw ccw 12 Volt 2 wire version order code BLDC48- 8L-005 8L-001 12L-025 12L-021 24 Volt 2 wire version order code BLDC48- 8L-015 8L-011 12L-035 12L-031 12 Volt 4 wire version order code BLDC48- 8L-007 8L-003 12L-027 12L-023 24 Volt 4 wire version order code BLDC48- 8L-017 8L-013 12L-037 12L-033 Continuous output power Watts 8 12 Maximum speed rpm 4300 4550 Maximum speed rated torque rpm > 2900 3200 Rated Torque Nm 0.022 0.03 Stall Torque Nm > 0.032 0.052 2 Rotor inertia Kgcm 0.22 0.3 Motor Supply voltage Vdc 12 24 12 24 Motor supply current rated torque Amps 1.01 0.51 1.33 0.69 Peak current stall ( internally limited ) Amps 1.4 0.7 1.95 0.95 Analogue speed control signal V/1000 rpm 0.83 : only available on 4 wire versions Digital output speed monitor ppr 6: only available on 4 wire versions Internal Over-temperature protection standard Bearing type Ball Maximum radial load N 40 15 mm from mounting face Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.ukBLDC 48: connections solution Lead colours Motor supply voltage: (12 / 24 Vdc) red Motor supply voltage: (12 / 24 Vdc) red Motor supply Ground blue Motor supply Ground blue Analogue speed control input white Frequency generator signal (6 ppr )green 4 wire motor connections 2 wire motor with integral proportional speed control Note: The direction of rotation is set internally. BLDC 48: Integrated electronics for complete drive solution 2 wire motors The two wire motors have internal drive electronics that provides control similar to a conventional dc motor. By reducing the applied voltage the speed and peak torque are reduced. The motor is ideally suited to applications such as laboratory stirrers & shakers, tensioning drives and fixed speed pumps. An internal current control circuit automatically limits motor current to a safe level to protect the motor against stall conditions. 4 wire motors In addition to the above features the 4 wire motors include speed control loop electronics & internal amplifier to provide a complete and accurate velocity control system within the motor. The motor speed is externally controlled by means of a 0- 5V control signal. Applications include variable speed pumps, conveyors & laboratory equipment. Frequency counter Speed monitor commutation Digital circuit Control Loop 2500 Complete drive inside 0-5 V control signal Power Amplifier l Speed The integration of power amplifier and speed loop circuitry within the motor greatly simplifies control. Simply connect a speed control potentiometer for variable velocity control. A digital output signal also enables motor speed to be accurately monitored. Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk