EM-241-SAF is a positioning driver to be used with DC-motors. The solid state power stage operates with high efficiency as it is realized with FET-transistors. Its literally everlasting compared to relay solutions. Control and feedback is done with analog signal. Control signal can be a voltage in range of 0 to 11V or current from 0 to 20mA. Feedback signal can be in the range from 0 to 11V. Driver supports also a potentiometer feedback, with auxiliary voltage outputs of 0V and 5,5V to exitate the potentiometer. The max. accuracy available for positioningof is 0,2% that is adequate for most actuator positioning applications.
The settings and adjustments are done with parameters as in all new generation Electromen products. Movement range can be modified from both ends with SW-limit parameters. Current limits and driving speeds can be set individually for both directions. Driver includes also many other dynamic adjustment possibilities like parameters for load compensation, dead-zone setting (positioning window), start and stop ramps for a smooth direction change and braking zone for well operating positioning.

The parameter setting and status monitoring is done with EM-236 Interface Unit. With EM-236 the right  parameters can also be easily copied to other driver units. The on-board LED-light indicates the possible fault situations with blinking codes. If needed, the fault can be forwarded trough combiport to other driver cards. Alternatively this port can be set to give out the "position OK" information or it can even indicate the position with an analog voltage signal. Device is EMC tested for industrial and household environment and operating temperature range is quite wide.
There are also some housing options available for EM-241-SAF driver card.

---

TECHNICAL DATA ( prog. v1.8, pcb -243C-v.8 )

Supply voltage 12-48Vdc ( 10-58Vdc )
Idle current typ. 15mA
Shut down voltage 8V
Power up voltage 9V
Motor current cont. 40A, mom. 60A ( TaMotor current cont. 25A, mom. 40A ( TaCurrent limit 1-100A ( in start max. 150A 1s )
NOTICE! current limit is 50% boosted during start ramp
Overtemp. limit 100°C
Start and stop ramp 0-2.5s
PWM frequency 2kHz / 16kHz
Analog feed-back ranges 0-5V / 0-10V
Control input ranges (position) 0-5V / 0-10 V / 0-20mA
input impedance for mA-signal 250ohm (resistor not incl.)
Position out. signal range 0.5 - 4.5V / 0-5V
Digital input levels high =4-30V, low=0-1V
Digital input impedances typ. 10 kohm
Limit-FW / -BW input imp. 10kohm
Fault -output NPN, open coll. max. 40V / 1A
Disable -input Uin < 1V ( NPN )
Indication out impedance 1kohm
Fan-output NPN open coll. max. 40V /1A (act. T>50° )
Brake output NPN open coll. max. 60V / 5A
Connectors for motor and supply max. 16mm² cable
Connectors for signals max. 1mm² cable
Operating temp( Ta ) -40...60°C
Measures 107x72x40mm
Weight 190g
CE-tested for industrial environment ( EMC )
EN-55022B, EN-61000-4-3, -4, -5, -6 passed

Tiedostot

• EN_em-243-saf.pdf - Lataa tiedosto (393 kt)
• Modbus_common_part_10.2.2021.pdf - Lataa tiedosto (393 kt)
• Modbus_SAF_25.7.2019.pdf - Lataa tiedosto (189 kt)
• EN_em-Rail_bases.pdf - Lataa tiedosto (2834 kt)

---