Frequent gate motor questions

Why use DC motor or battery operated motor on a gate opener?
What is the biggest gate that can be operated with the D5-Evo / D5 / D3 / A5?

The limitations for the A5/D5 are the following:

  1. The starting pull force must be less than 25kgF for the D3, 60kgF for the D5 and less that 22gkF for the A5.
  2. The mass of the gate must be less than 300kg for the D3 and less than 500kg for the D5 and A5 motors.
Why does the A5/D5 sometimes seem to lose its endpoint setting? (Refers only to version 1 type D5 or A5 motors)

The most likely cause is loss of mesh between the rack and pinion. Because of the internal limit switch mechanism (DOSS) it is vital to maintain the mesh between the rack and the pinion.

My A5 motor stops intermittently for no apparent reason. Sometimes it stops during opening and sometimes during closing.

The problem may be caused by a loose connection in the controller 12V DC power supply circuit. What happens is that the controller momentarily loses its 12V DC supply (it is often a drop in voltage that occurs so quickly that it is not possible to measure it with a standard volt meter) and the P/C microprocessor on the controller resets. It is very easy to see if this is the problem because the STATUS LED flashes 5 times as the motor stops, and all the monitoring LED’s (STATUS, L1 AND L2) will be switched off.

Why use DC motor or battery operated motor on a gate opener?
What is the biggest gate that can be operated with the D5-Evo / D5 / D3 / A5?

The limitations for the A5/D5 are the following:

  1. The starting pull force must be less than 25kgF for the D3, 60kgF for the D5 and less that 22gkF for the A5.
  2. The mass of the gate must be less than 300kg for the D3 and less than 500kg for the D5 and A5 motors.
Why does the A5/D5 sometimes seem to lose its endpoint setting? (Refers only to version 1 type D5 or A5 motors)

The most likely cause is loss of mesh between the rack and pinion. Because of the internal limit switch mechanism (DOSS) it is vital to maintain the mesh between the rack and the pinion.

My A5 motor stops intermittently for no apparent reason. Sometimes it stops during opening and sometimes during closing.

The problem may be caused by a loose connection in the controller 12V DC power supply circuit. What happens is that the controller momentarily loses its 12V DC supply (it is often a drop in voltage that occurs so quickly that it is not possible to measure it with a standard volt meter) and the P/C microprocessor on the controller resets. It is very easy to see if this is the problem because the STATUS LED flashes 5 times as the motor stops, and all the monitoring LED’s (STATUS, L1 AND L2) will be switched off.

source, Centurion Systems