The 17MDSI Series has a compact construction that integrates a simple indexer/controller, microstepping driver and a stepper motor in one streamline package. With the three parts combined into one casing, the need to include motor wires has been eliminated. The high-torque step motor can generate up to 62 oz-in of torque. The microstepping driver will operate with voltages of 12VDC to 24VDC. The inputs are capable of running from either open collector, TTL level logic outputs or 24VDC outputs from PLCs and are all active low. The microstepping driver features resolutions from 200 - 1600 steps/revolution, providing smooth rotary operation. The 17MDSI Series comes in a single shaft version with 3 different motor stack lengths allowing for varying amounts of start-up torque, dynamic torque and inertia. The 17MDSI Series features built in over temperature and short circuit shut down protection. It also has automatic 70% reduction in stepper motor current after indexing is complete and status LEDs to indicate power on （green LED） and motor running （yellow LED）.