EM-352-SBL is brushless DC-motor driver with hall sensor feedback. The unit has a mosfet power stage with good efficiency and it meets also todays EMC requirements. The driver can be used with 120° commutation. This driver has true 4Q power stage, and it makes possible to use regenerative braking . In this braking method the supply voltage rises, this voltage rising can be controlled with braking resistor. If uses battery supply then the braking energy can be leaded back to battery and braking resistor will not needed.
The unit has the basic digital command inputs like reset/homing, disable, local/bus and safety stop. There is analog input for position set . EM-352-SBL has PNP output for fault indication use. Some input and output ports and functions can be set and change with parameters. Alternatively this driver can be also controlled via Rs-485 control bus with Modbus protocol.
Driver includes overvoltage, undervoltage and overtemperature protections. These fault situations are indicated with fault on-board LED. Current limit situations can be reset with reset input, reset-timer or by setting analog speed control to value to 0.

This version of EM-352 uses motor feedback pulses also for positioning, little like in servo system. The positioning resolution depends on the numbers of motor poles. for example 1-pole-pari motor 6-positon in round and 7-pole-pair motor 42 position in round.and this round means motor shaft rounds, so with gearbox the resolution can be improved. Driver has own positioning amplifier and with this can be easily adjusted dynamic and accuracy of system. Driver has also RS-485 bus with Modbus control protcol, this make flexible use and control many driver in system.

Setting can be done digitally with EM-236 interface unit or with Emen-Tool lite program installed in PC and EM-328 adapter cable. Parameters stored into nonvolatile memory of device. This interface unit can also be monitored the current and rpm of motor. Parameter stting and monitoring can be also done via Rs-485 bus.

Device can be installed in DIN-rail base and some enclosure options are also available.

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TECHNICAL DATA

Supply voltage 12-24V ( 11-35Vdc )
Overvoltage shut down 40V
Idle current typ. 30mA
Max current 8A cont. ( Tamb. 40 °C )
Max. peak current 12A ( 5s )
Max brake output current 3A
Pwm frequency typ. 16kHz
Overtemperature Temp shut down 90°C
Current limit setting 0.1-12A ( step 0.1A )
Logic level of digital inputs
"off" = 0-1V or open / "on"= 4-30V
Input impedance of logic inputs 10k
Response time of digital input 2ms
Analog input range 0-5V up to 0-10V
Analog input resolution 10bit. ( 1024 step )
Input impedance of analog inputs 100k
Input filter of analog input 100Hz
Hall input max freq. 800Hz
Fault outputs PNP max 50mA ( 5v/Vcc )
Fan out turn on when temp. >55°C max. 100mA
EMC measured for industrial and env.
PCB material flammability class UL94V-0
Dimensions 65x73x22mm
Weight 76g

Tiedostot

• EN_em-352-SBL.pdf - Lataa tiedosto (886 kt)
• EN_em-352_367SBL_Modbus_Data_Address_rev3.pdf - Lataa tiedosto (138 kt)
• Test_Modbus_connection_with_Qmodbus.pdf - Lataa tiedosto (209 kt)

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