ARKEL Elektrik Elektronik Ltd. Şti. www.arkel.com.tr
ARKEL 34 KM-20
1. INTRODUCTION
KM-20 controller is an “intelligent” door control board designed for automatic telescopic lift doors
with 24VDC reduction gear motor. It provides advance features for high comfort, high dynamic
performance and flexible usage.
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 buzzer sound and slow speed closing after a long time
photocell interrupt.
In case of mains failure, it can get the power from batteries or 24VDC external 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 door opening zone 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