3.5 Amp Bi-polar stepper motor drive MSE570 Evo 2 Features Bi-polar drive with pre-set drive currents up to 3.5 Amps per phase Increased operating voltage up to 48 V step drive option for improved damping suitable for size 17, 23 & 34 frame size hybrid stepper motors Increased efficiency No heatsink required Reduced width (7HP) Single rail supply for both logic and motor Standard Thermal protection & condition monitoring Operates from external clock & direction signals Optional on-board oscillator circuit can be added for simple manual or PLC interfaced control Optional matched motherboards (MSB630 & MSB870) for connection via solder free terminals Standard unit Version with front panel kit Models: MSE570 Evo 2 PM570 Evo 2 Version for clock / direction Version for use with Motherboard options signal input PM600 controller See motherboard data for MSB630 MSB870 connections Dimensions: mm MSE570 Evo 2 PM570 Evo 2 Minimum rack 35.5 ( 7HP ) 220 160 spacing: 35.5 ( 7 HP ) 128 ( 3 U ) Current 100 Setting 100 switch Issue 002 Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk3.5 Amp Bi-polar stepper motor drive MSE570 Evo 2 The MSE570 is a low cost high performance Eurocard Bi-polar drive designed for mounting in 3U high Euro-racks. Ideally suited for use with Nema size 17, 23 & 34 stepper motors, the unit provides a wide range of current options. Designed for use by original equipment manufacturers, the unit provides a reliable and economic in-service proven drive solution. Furthermore, the MSE570 design enables users to customise the unit to meet their exact requirements by providing a series of up-grade options which can easily be implemented. Improved Output stage efficiency The MSE570 Evo 2 features a chopped constant current output stage with on-board current settings from 0.5 to 3.5 Amps per phase to meet the requirements of virtually any 2 or 4 phase hybrid stepper New Features motor in the Nema 17, 23 & 34 frame sizes. The use of chopped Increased efficiency constant current drive techniques combined with the latest No heatsink required developments in power stage technology results in significant advances in efficiency. Furthermore, the output current may be Reduces width reduced via an external input when the motor is at standstill to Increased operating voltage reduce temperature rise in the drive and the motor. The drive is designed for use with rail voltages from 15 to 48 Vdc such as Single rail supply for both logic MSE173 when up to 7 drives can be incorporated in a single rack and motor together with the power supply. For high speed operation the Power Standard Thermal protection & supplies type MSE562 & MSE875 are recommended for single and multi axis applications depending on motor current settings. condition monitoring Choice of full or half step drive The MSE570 may be set to operate in full step or half step drive. Half step drive is recommended since it provides increased resolution ( 400 steps/rev. using conventional hybrid stepper motors ) together with improved smoothness and damping of motor resonance. Thermal Protection A thermal sensor is fitted to prevent overheating of the output stages. The drive may be automatically disabled on over-temperature by setting switch SW1-1 on. Status LEDs for condition monitoring The MSE570 drive board has five status LEDs. The LED 1 Green Power in on status LEDs provide a visual indication of drive LED 2 Yellow Output is disabled condition. The function of each indicator is shown in LED 3 Red Over-temperature fault detected the table. Surface-mount types are fitted as LED 4 Red Overload fault detected standard, with provision for the user to fit through- LED 5 Yellow Home phase output board types. These may be soldered into locations at the front edge of the board. Customising the MSE570 to meet individual application requirements Choice of external or internal step control In most applications MSE570 will be operated in conjunction with an external control source consisting of a clock pulse train to determine rate and distance together with a direction signal. Where operation off line from a control processor is required a print on the circuit board is provided for the user to add a simple voltage controlled oscillator to facilitate manual control of the motor drive system. Issue 002 Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk