Requirements for a gate control system
In many cases a factory entrance is closed with roll gates. Those gates are only opened when vehicles need to enter or leave the factory grounds. The gate is controlled by a gatekeeper.
The sliding gate is opened and closed by means of a pushbutton control in the gatehouse. The gatekeeper can monitor the gate operation.
The roll gate is normally fully opened or it is closed. However, gate movements can always be interrupted.
A flashing light is activated five seconds before the gate moves and while the gate is in motion.
A safety pressure strip ensures that people are not injured and that no objects are trapped and damaged when the gate is closing.
Standard solution
There are many different control systems for operating automatic gates. The OPEN and CLOSE buttons initiate gate movements in the relevant direction, provided it is not already moving in the opposite direction. Movement of the gate is terminated either by means of the STOP button or the relevant limit switch.
LOGO!Soft Comfort solution
A LOGO! circuit provides a further feature compared to standard controls: The actuation of a safety bar interrupts the closing motion of the gate. Five seconds before the gate opens or closes, a flashing light is activated and signals the start of the movement. It continues flashing until the gate has stopped.
In contrast to standard solutions, LOGO! offers an easy and economic means of modifying the control system.