EM-356B-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-356B-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 -SBL version of EM-356 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.
| TECHNICAL DATA EM-356-SBL |
|---|
| Supply voltage | 12-24V (11-35Vdc) |
| Overvoltage shut down | 40V |
| Idle current | typ. 30mA |
| Max current | 15A cont. (Tamb. 40 °C) |
| Max current (with fan) | 20A cont. (Tamb. 40 °C) |
| Max current peak | 40A (max 2s) |
| Max brake output current | 10A |
| PWM frequency | typ. 16kHz |
| Overtemperature shut down | 90°C |
| Current limit setting | 1-40A (step 1A) |
| Current limit analog scale | 0-5V = 0-40A |
| 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 steps) |
| Position counter resolution | 31b (2147 milj. steps) |
| Input impedance of analog inputs | 100k |
| Input filter of analog input | 100Hz |
| Fault outputs | NPN max 50mA |
| Fan output | NPN max. 100mA |
| EMC | Measured for industrial environment |
| PCB material flammability class | UL94V-0 |
| Dimensions | 89x73x32mm (height 44mm with fan) |
| Weight | 150g (200g with fan) |
