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EM-348-48V 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. Driver has two selectable pwm frequency 2 or 16kHz. Power stage has smoothed switching technique which is achieved very low RF emissions, so external filter will not needed.
Driver has also external brake output which can be used for control magnetic brake or braking resistor in regenerative braking.
This card has integrated Rs-485 bus, with this bus can be control and monitoring driver and also the parameter of driver can be set with bus. This interface has as a standard Modbus RTU protocol. This bus makes possible to connected several cards under one control unit. Card has also two multifuntion control inputs, which can be set for digital or analog mode, depends on used firmware. This card has available with several firmware version for different applications. There is two program version for basic drive and positioning control. Card can be used with pulse or analog feedback from motor. The card has selectable input logics. Inputs are divided in two groups, control and limit /pulse -inputs. These groups can be individually set for NPN or PNP logic.
The parameter setting and monitoring can be done with Modbus or EM-236 interface unit, EM-328 with EmenTool-Lite PC-program. The Program updates domen with EmenTool.


TECHNICAL DATA ( EM-348-48v prog. -spf v1.8 )

Supply voltage cont. max. 20-55V
Overvoltage limit adjustable 15-65V
Start up voltage 9V, shutdown voltage 8V
Continuous current output when ambient temp is 10A at 100% speed / 7A at 5-99% speed pwm=2kHz
7A at 100% speed / 4A at 5-99% speed pwm=16kHz
Peak ( 5s.) 30A at 2khz pwm and 25A at 16kHz pwm
Current limit adjustable 0.1-25A ( at start max 30A )
Overheat limit 100°C
Start and stop ramp adjustable 0-5s
PWM frequency 2kHz / 16kHz
Analog inputs ( pin 11 and 12 ) 0-5V or 0-10V
Input control logic: high =4-30V, low=0-1V
Control input impedances typ. 47kohm
Limit/pulse input ( pin 2 and 3 ) imped. typ 10kohm
Control input response time typ 5ms.
Fault out. PNP open coll. 22V max. 20mA
Brake out NPN open coll max. 55V / 1.5A
Disable in active Uin > 4V ( PNP)
Bus Rs-485, two wire half duplex, 9600kb/s
Motor and supply connectors 2.5mm
Control connectors 1mm
Dimensions 42x72x height 25mm ( 6A version 18mm)
Dimensions in DIN-rail base 45x80x45mm
CE-tested for industrial environment ( emc )
Operating temp ( Ta ) -40...60°C
Weight 75g ( 6A version 48g )

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Product not available for online order.