EM-241A; ELECTROMEN DC-MOTOR CONTROLLER 12-24V-15A;
TECHNICAL DATA:;
Supply voltage: 10-35V;
Start up voltage: 9V, shutdown voltage 8V;
Motor current cont. max. 15A, peak max. 30A;
Current limit adjustable 0.1-20A;
Note! at start current limit is 1.5 times higher as set;
Overheat limit 100°C;
Start and stop ramp adjustable 0-5s;
PWM frequency 2kHz;
Speed input scale ( speed-2 ) 0-5V = 0-100% pwm;
Input control logic: high =4-30V, low=0-1V;
Control input impedances typ. 47kohm;
Limit FW / BW input imped. typ 10kohm;
Control input response time typ 5ms.;
Fault out. NPN open coll. max 30V / 50mA;
Fault in actives Uin < 1V ( NPN );
Motor and supply connectors 2.5mm;
Control connectors 1mm;
Dimensions 42x72x25mm;
Dimensions in DIN-rail base 45x80x45mm;
CE-tested for industrial environment ( emc );
Operating temp ( Ta ) -40...60°C;
Weight 75g;
General;
* small size;
* current limit;
* zero current limit;
* speed setting;
* flexible control inputs;
* impulse / continuous mode;
* rail base mountable;
* digital parameter setting;
Descripcion:;
EM-241A is a full bridge DC-motor starter. It is designed to work with DC-motor in applications where some special functions are needed. Starter has adjustable acceleration and deceleration ramps, which make possible the smooth starts and stops. Adjustable current limit protects motor against overcurrent and it can also be used as an end-stop. This device has also two settable speeds, which are usefull in positioning applications. Control inputs FW and BW start the forward and backward run. STOP is for the motor shut-down but there are also available individual limit inputs for FW and BW directions. SPEED-2 input activates preset speed-2, but it can also be used as input for analog speed control signal 0-5V. FAULT terminal has at the same time input and output function, the pin is normally high, but is pulled down in overheat and conditionally also in current trip situation. If FAULT-line is pulled down externally it will cause a stop and prevent the new start. For example, it is possible to link fault pins of several units together and achieve a syncronous stop. There are two selectable control modes, continuous and impulse. In continuous mode the motor runs as long as the control is active. In impulse mode a short comand starts the motor, and only a new impulse will change the status. There is also few special settings start-kick and auto reverse. The card has selectable input logics. Inputs are divided in two groups, control and limit -inputs. Groups can be individually set for NPN or PNP logic. The parameters are set with EM-236 interface unit. Operation of the controller and some of its functional values can also be monitored with EM-236 interface unit.
