Limit switch inputs or limit switch  free automation of roller door(s) or gate(s) with auxillary inputs for limits (if applicable), fire alarm, photo safety beams, auxillary load controls (eg turn of heat pumps when door open and or open door when fire alarm sounds etc...). Selectable auto-close feature. 3 channel control.
CH1:OPEN    CH2: CLOSE    CH3: Cycles OPEN+CLOSE
 
NOTE: An additional extension module can be added if more inputs/outputs are required (see shop listings).
 
WARNING: Limit switches are recommended for safety reasons. Some roller door systems will require limit switches as there can be creepage from the internal spring mechanisms.