EM-324C-JS1 DC-MOTOR CONTROLLER 12-24V 3/4A
EM-324C-JS1 is a full bridge DC-motor starter. It is designed for joystick controlled DC-motor applications. The driver has adjustable acceleration and deceleration ramps, which enable the smooth starts and stops. Adjustable current limit protects the motor against overcurrent and it can also be used as an end-stop. This device has also two settable speeds, separate speed ranges for forward and reverse direction. Control input is specially designed for joystick control. The joystick range calibration is done automatically, when calibration function is activated. Calibration detects forward, reverse and midpoint positions. FAULT terminal has simultaneously both input and output functions, 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 it from starting again. For example, it is possible to link fault pins of several units together and achieve a syncronous stop.
There are also special settings as start-kick which can be used in case the device is in danger of being jammed. Limit input can be individually set for NPN or PNP logic.
The parameters settings can be done with various EM- interface unit. Operation of the controller and some of its functional values can also be monitored with interface units.
Supply voltage cont. max. 10-35V
Overvoltage limit adjustable 15-40V ( connect motor to freewheel )
Overvoltage dynamic brake 40V ( shorting motor poles )
Start up voltage 9V, shutdown voltage 8V
Motor current cont. max. 3A, peak max. 7A ( @ 16kHz, TaMotor current cont max. 4A, peak 7A ( @ 2kHz, TaCurrent limit adjustable 0.1-5 A ( at start max 7A )
Overheat limit 100°C
Start and stop ramp adjustable 0-5s
PWM frequency 2kHz / 16kHz ( selectable )
Joystick input scale 0-5V or 0-10V ( if dip 2 = ON )
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 in DIN-rail base 35x80x38mm
CE-tested for industrial environment ( emc )
Operating temp ( Ta ) -40...60°C