Owners and licensees of elevators equipped with Smartrise SRA (V3 CEDES) Controllers with a single door zone sensor must alter the software and submit a Minor A Alteration Design Submission by May 1, 2026, where applicable.
In May 2025, TSSA updated a Director’s Order that applies to elevators:
- With a Smartrise SRA (V3 CEDES) traction controller;
- Registered and installed using CSA Standard B44 Elevators and Escalators; and
- with a single sensor to determine position for the levelling and Unintended Car Movement Protection safety circuits.
The Director’s Order addresses a serious safety risk found during the testing of a traction elevator. A Category 5 test involving a Smartrise SRA controller, CEDES Absolute Positioning System, and a single door zone sensor showed that if the lone door zone sensor (magnet or optical) fails, the elevator can move while both the car and hall doors are open.
To address this risk, the Director’s Order requires that:
- Elevators operating with a software version earlier than 3.18e must upgrade their software to version 3.18e or newer and submit a Minor A Alteration Design Submission, in compliance with section 3 of this order, before May 1, 2026.
- Elevators with software version 3.18e or newer must submit a Minor A Alteration Design Submission, compliant with section 3 of this order, to TSSA by May 1, 2026.
Elevators that do not meet the timelines above may be shutdown.
No further action is required if a compliant submission has already been made prior to this order.