Stepper motor drive NDC 94

DC

► Series of ministep bipolar chopper drives, suitable for driving medium power two-phase stepping motors, with four, six or eight terminals. ► Compact, easy to use and cost effective solution. This system is designed for easy mounting inside a metallic electrical cabinet. ► Target: medium and medium-low power applications without special configuration requirement, but needing great dynamic performance, high reliability, low acoustic noise and mechanic vibrations reduction. ► Microstepping function up to 4.000 step/rev. ► Electronic damping facility for further acoustic noise and mechanic vibrations reduction at low and medium speed. ► Separated connectors for logic signals and power connections. ► Optoinsulated and differential input and output signals ease interfacing with the most commonly used control systems. ► Version: drive housed in a metallic box in 110 x 108 x 34 mm, equipped with plug-in connectors. ► Range of operating voltages: 24-75 VDC. ► Range of current: 0.6-2 Amps. Setting up to eight possible values by means of a dip-switch. ► Microstepping: 400, 500, 800, 1.000, 1.600, 2.000, 3.200 and 4.000 steps/revolution. Setting by means of a dip- switch. ► Automatic current reduction at motor standstill. ► Protections: -Protection against under-voltage and over-voltage. -Protection against a short-circuit at motor outputs. -Overtemperature protection with thermal sensor. ► Optoinsulated inputs compatible with differential control signals. ► Possibility to switch off motor current with an external logic signal. ► High efficiency CHOPPER with MOSFET final stage output.