Siemens 6FB1211-5GA10-7AT2 Automatic Door Control

Siemens 6FB1211-5GA10-7AT2 is a SIDOOR ATE500E relay-based controller for elevator doors, designed to drive horizontal door drives with built-in safety features and diagnostics. As part of the SIDOOR automatic door control family, it learns door width and weight, calculates smooth motion, supports one-button commissioning, and includes end-position detection, obstruction detection, and energy limiting to help meet safety standards (EN ISO 13849-1 PL d and EN ISO 14120). The unit is powered from a DC supply in the 19.2–38 V range and typically draws up to 3.5 A, with the GAL ATE500E relay assembly providing the door-control outputs. It leverages SIDOOR's diagnostic capabilities for condition-based maintenance and can integrate with PLCs over standard industrial interfaces, enabling local or remote monitoring of elevator-door status. The 6FB1211-5GA10-7AT2 variant identifies the GAL ATE500E relay control unit used for elevator doors in horizontal configurations, suitable for industrial installations requiring reliable, safe, and observable door operation. Typical applications include service elevators in manufacturing facilities, freight elevators, and other horizontal elevator-door installations in demanding environments.