DC Motor Controllers

DECS 50/5 Brushless Sensorless Amplifier The digital EC sensorless amplifier is a 1-quadrant digital controller for the control of brushless dc EC motors up to 250W. Rotor position/Hall sensors are not required- the actual rotor position is evaluated by using the Back-EMF sensing technique Functions include, digital speed control; direction, disable, motor braking, set value input 0-5 v Maximum speed 80,000rpm (motor with 1 pole pair) Maximum current limit adjustable Selectable start up modes Adjustable speed regulator gain Motor connection either by using plug-in screw connector or flex print connector (FPC) Note Depending on the rotor position and size of the coupled load, there is a short start up procedure prior to motor run up, during this procedure the controller also determines the rotor position. This is achieved by the controller alternating the motor in forward and reverse direction for a very short period. DC Drives - Brushless

4-Quadrant Module This module is a 4-quadrant, linear output driver which is suitable for driving small dc. motors and gear motors up to 60 watts. Only single polarity voltage supply is required to achieve bi-directional motor speed control Employs armature feedback technique to maintain speed regulation Adjustable current limit facility Short circuit protection Speed control by external or internal potentiometer, or dc. control voltage Inbuilt thermal protection

LSC 30/2 Linear servo control amplifier used to control motors up to 50W Suitable for a wide range of motors including the Maxon RE36 and A-Max 32 4 quadrant operation 5 operating modes , (IxR, voltage regulation, digital encoder, dc tacho, current control) External DIP switch setup, potentiometer mode adjustment LED status indication Rack mounting