EM-180 Electromen OY DC Motor Controller, 12 → 32 V dc, 15 A, 40 V

On/Off/Direction Change_x000D_ The drive is developed for controlled ON-OFF driving and direction change of a DC-brushed motors. The drive has advanced current limit features. It limits the motor current in start-up and jam situations and that way protects the motor and mechanics from over torque. The drive also has an error output to indicate error / over current situations.,The acceleration ramp time for start-up is adjustable to suit different applications. In other word the motor voltage is slowly raised to give a smooth start-up. When the control is set to off, the motor is dynamically braked utilising short-circuit braking. The reverse and forward commands can be set for positive or negative control. The free-wheel command sets motor to run free. Free-wheel overrides both the forward and backward commands.,The current protection is double acting. First there is a continuous and adjustable current limit which decreases the motor voltage if the current exceeds the adjusted value. Second there is settable trip feature that cuts the motor voltage if the current limit value is exceeded (after trip delay 2ms). After trip the motor starts only to the opposite direction. Additionally the driver doubles the adjusted current value for 0.3 seconds in start-up to ensure sufficient power to overcome the start-up friction._x000D_ Fast change of direction_x000D_ Soft start-up, acceleration ramp_x000D_ Settable current limit_x000D_ Trip or continuous current limit_x000D_ Dynamic braking_x000D_ Electromen EM-180 - ON/OFF/DIRECTION DC DRIVE BOARD, 12-32 V DC, 15A_x000D_ The EM-318 is a micro stepping stepper motor controller using bipolar-chopper control. The bipolar operation principle suits most stepper motors and provides the best torque control.The micro stepping function also enables great performance at low rpm,stepping and current regulation is synchronized giving a smooth and quiet operation._x000D_ There are 7 different stepping options to choose from, ranging from full to 1/64-step operation, this provides various possibilities for different speed applications._x000D_ The controller has its own auxiliary oscillator, which can be used for pre-set speed commands - the pre-set speeds can be activated by using 4 digital function inputs_x000D_ The oscillator features an acceleration ramp function, which allows frequencies to be altered for smooth control_x000D_ The drive will ensure that the motor will start up reliably at higher frequencies and shift to desired velocity without speed dropping_x000D_ The auxiliary oscillator incorporated into the unit offers pre-set operational sequences - each sequence is a movement with speed, direction and distance (as steps)_x000D_ The pre-set sequences can be selected with the 4 digital inputs_x000D_ All the inputs are activated with positive logic commands (4-30V), control can also be achieved with TTL-logic level commands_x000D_ For parameters setting there is 3 options: EM-236 interface unit, EM-268 with Menthol-Lite PC-program and EM-326 with Menthol-App application for smartphone_x000D_ Features and Benefits_x000D_ High efficiency drive with low RF emissions_x000D_ Soft start-up, acceleration ramp_x000D_ Adjustable current limits (continuous and trip levels)_x000D_ Freewheel option_x000D_ Dynamic braking_x000D_ Start-up kick feature to overcome inertia