EM-231DC motor controller
3Pages

rev.2 p.1 EM-231A CONTROL UNIT FOR DOORS AND HATCHES FEATURES: • supply from 230Vac • for 24Vdc motors • motor current limit • safety reverse • end switch inputs • pulse encoder input • radar input • remote control option • CE marked EM-231A is designed for door and hatch controlling. Control unit includes the 230Vac isolated mains power which converts the voltage to the 24Vdc for control electronics and door motor. Motor can be a normal low voltage DC-motor. In the basic operating mode the end stop can be realized with current limit or end switches. More sophisticated behaviour can be achieved with pulse encoder feedback. In this pulse mode the controller can be learned with a push of a button. After the controller has learned the stroke length it executes the open/close cycles smoothly anticipating the end stops with slow down ramps. In all operating modes the current limit is active and ready to stop the motor if the adjusted value is exceeded. If desired a safety reverse action can be set to follow this current trip. With safety reverse active eg. a person who is in the way of a closing door will cause the motor to reverse and door to open. Unit includes the inputs for end switches, door radar, OPEN/CLOSE buttons and for pulse encoder. Additionally there are inputs also for emergency drive and learning, and a serial connector for an interface unit. An optional remote control feature can be achieved with a remote control unit and by plugging a receiver hybrid (EM-A6) in to its holder. Speed, ramp times and current limit can be adjusted with trimmers. Operating mode, safety reverse and learning can be enabled and determined with dip switches. To achieve more sophisticated operation and customized settings the serial interface unit EM-236 can be connected to serial connector. With serial interface user can adjust the approaching speed, acceleration zone length, approaching current limit and radar off delay. EM-231A is housed to a plastic IP30 (IP65) ABS(PC) housing. Unit is CE-marked. EM-231A BLOCK DIAGRAM TECHNICAL DATA 5V/ 30mA Supply voltage Fuse Output voltage Output current Current limit Ramp time Speed range Pulse frequency Pulse length Input signals Input impedances Aux. outputs Fault output Remote Control Housing ABS(PC) Operating temp. Mains isolation 230Vac / max. 100W T1A 20x5mm nom. 24Vdc 1.5A (Uout=24V) 3A (Uout=18V) 30% duty 0-4A 0-2s 0-100% max. 1000Hz/50/50% min. 0,5ms 4-30V=ON / 0-1V=OFF 10kohm Total current 50mA 24V max.40mA 5V max. 40mA NPN open col. (100mA) 433Mhz typ. range 10m 130x130x60 / IP30 (IP65) 0-50°C 1000V T1A 5V 24V/ 30mA L 230VAC 24V N PE Serial Interface isolation RC 433MHz optional 3 OPEN CLOSE EMERG. PROG RADAR FAULT MOTOR VOLTAGE AND CURRENT CONTROL 24V MOTOR DRIVER CURRENT Im MEAS. SPEED CURRENT LIM. RAMP. TIME OPEN LIMIT SWITCH CLOSED LIMIT SWITCH BASIC / PULSE MODE SAFETY REVERSE RC-LEARNING/ DOOR STROKE LEARNING MOTOR 4 PULSE SENSOR IN DOOR SYSTEM

rev.2 p.2 DIP-switch settings 1. basic mode=OFF / pulse mode=ON 2. safety reverse active, ON / OFF 3. RC-learning = OFF / door stroke learning = ON off on LEARN button 100% 50 % 0% transformer 40VA 5 current 6 4 3 limit / A 012 ramp / s 2 230/24 1 0 serial interface for additional settings 130mm optional RF-receiver for RC 1 2 3 speed 130mm 39k pull-up resistor in holder. plug-in card holder for optional RC-receiver fault LED 24V fuse T1A 230V N 0V PROG LIM-C LIM-O OPEN 230V SETTINGS Set the desired operating mode with dip-switch (see the page OPERATING MODES). Adjust the speed, ramp time...

BASIC MODE with current trip -open/close command starts motor -motor accelerates with ramp -motor runs with adjusted speed -door meets the end point and motor current starts to rise until it exceeds the current limit, which causes the motor shut down -the current limit also shuts down the motor, if the door meets an obstacle during drive cycle -the action is same to both directions -the safety reverse function is not available in this mode -Notice ! In this mode there should be some kind of bumper in the end of stroke to BASIC MODE with a limit switch -open / close command starts motor...