EM-339A-48V-SPF POSITIONING DRIVER FOR TWO PARALLEL DC-MOTOR 24/48Vdc 2x8A or 2x15Apeak, Rs-485
EM-339A-48V-spf is designed for driving two actuators in parallel. The drive is done as synchronized according actuators pulse feedback signal. The synchronization is achieved by adjusting actuator speed during drive. If the adjustment can not compensate the unbalance between actuators, the motors will be stopped. This way the mechanical stress and breakage can be avoided. Additively the driver includes current limit and power stage temperature limit.
Driver works with actuators that can offer pulse feedback signal. Pulses can be derived from Hall-sensors, reed or other kind of switches which generate 0 and 90° pulse chains. Driver can be set to read negative or positive pulses. Driver power stage operates with PWM (pulse width modulation), that enables the high efficiency and low losses of power stage. This -SPF firmware version uses a analog SET signal, then driver works like servo driver and positioning actuators to the same value as the set value. The range of set value can be adjust with parameters. Driver has also support for SAFETY-SWITCH with line monitoring, and also with parameter can be set SAFETY REVERSE reversing time. This device is designed work also with Rs-485 Modbus. With Modbus can be controlled, set parameter and monitored device. For Modbus use has separated instructions.
The parameters are set with a handy interface unit EM-236. There is also possibility to use EmenTool Lite PC-sofware with EM-268 and EmenTool App with smartphones for parameter setting.
Supply voltage nom. 20-58 Vdc ( nom. 24-48Vdc)
Undervoltage shutdown 8V, restart 10V
Quiescent current 15mA
Motor output currents
2 x 8A cont. or 2 x 15A ( at 25% duty and 2kHz)
2 x 5A cont. or 2 x 10A ( at 25% duty and 16kHz)
PWM frequency 2kHz/ 16kHz
Current limit 1-25A
Temp. limit 120°C ( pow.stage )
Ramp times 0 - 2s
Pulse input freq. max. 700Hz/ input ch
Pulse inputs pull- up/down 10kohm.
Control inputs 0-1V = OFF / 4-30V = ON
Input impedances 47kohm.
Analog control input 0-5V, 0-10V or 4...20mA
Input impedance 10kohm (or 250ohm at 4...20mA)
Fault-output, pull down max. 100mA
Brake-output, pull down max. 2A
Aux. voltage output 5V, max. 20mA
Bus, Rs-485 half duplex, 9600 or 19200 bps
Dimensions 78 x 73 x 25mm
Operating temp. range -20 to 60°C
Weight of card 110g
CE Electromagnetic compatibility
EN-55022B and EN 61000-6-2/ -4-2...6
- EN_em-339A-48V-SPF.pdf - Download product file (718 kb)