Door Controllers / KM 20


Supply voltage: : 20VAC±%10
Max. Power consumption: : 10W (control circuit) + Motor power
Supply protection: : Short-circuit protection (8A))
Motor type : 24VDC reduction gear motor
Motor output power: : Max. 200W (8A)
Motor control type: : 4-region motor control
Motor protection: : Overload and short-circuit protection
Encoder type: : 2-channel incremental
Encoder resolution: : Any model between 100 pulse and 2048 pulse
Operating voltage: : 5 VDC
Note: Encoder is not included!
Outputs for control panels: : Door open signal
Door closed signal
Door obstruction or photocell detected signal
Output type: : with relay contact output3A 250V AC or 30V DC
Door control & speed signals: : Open signal
Close signal
Low speed
High speed
* Dual channel opto-coupled, positive or negative common selectable
Other inputs: : Photocell & obstruction signal
Car is at floor level signal
1 programmable input (reserved)
Activated with 24VDC
Battery voltage: : 2 pcs 12V batteries
Internal battery charge: : Included
Battery protection: : With fuse (5A)
Battery over-discharge protection with sleep mode operation.
Standart interface: : 2-digit 7-segment display and 4 keys
Optional interface: : KM-20 Keypad
Sound alert: : With buzzer
Language options: : Turkish - English - Greek
Dimensions : 116 x 160 x 50 mm (width x length x height)
Door opening: : 50 cm - 300 cm
Door opening velocity: : Max. 50 cm/s


Comfortable motion of doors with S softening in travel ramps
Individual parameters for opening & closing motion of doors
Complete hold of the motor with its 4-region motor control
Parameters for manufacturing companies that enable application flexibility
High position accuracy via 2-channel high resolution encoder input
Swift motion of door with algorithm does not require limit switches
Inputs & outputs for working with the control panels in complete harmony
Optional KM-20 Keypad allows access to all its parameters and functionality.


KM-20 provides complete hold of the motor with its 4 region motor control and high resolution encoder input hardware.
In addition to this hardware, it allows swift but comfortable motion of doors with its software that provides S softening in travel ramps and which has the algorithm that does not require limit switches.
It provides features for auto-learning of door travel limits without open-close limit switches.
In order to work with the control panels in complete harmony it can generate “Doors are completely open”, “Doors are fully closed” and “Obstruction or photocell detected” signals. These signals enable it to work for fire lift doors.
A nudging function is included with reduced speed closing with sound alert after a long time photocell interrupt.
In case of mains failure, it can get the power from 2 pcs 12V batteries or 24VDC extarnal supply. The emergency supply type can be selected easily via a jumper on board.
KM-20 protects the battery from over-charge with a smart battery charge system. After an emergency opening with battery supply, KM-20 goes into sleep mode and protects the batteries from over-discharge.
With a floor level signal input, doors can be kept closed until the car is moved to the just floor during emergency evacuation.
It provides a parameter menu which has access levels for security, user/customer needs and easy adjustment.
It provides many functions and parameters for manufacturing companies that enable application flexibility, like motor reduction ratio, motor revolution, motor sheave circumference and skate open zone.
It provides user friendly parameter setting with speed units in cm/s and travel distance units in cm.
It provides a counter for the information of opening-closing times.
Basic parameters (Door opening-closing speed, obstruction pressure, signal type and demo mode) can be adjusted easily by user via built-in 7-segment displays and buttons.
Optional KM-20 Keypad allows access to all its parameters, functionality and monitoring screens.
Availability of multiple languages: Turkish, English and Greek