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Topic starter
05/11/2025 11:25 am
Hey everyone,
Curious if anyone’s run into this before…
We’ve got a few traction elevators with battery backup systems for manual rescue, but none of them can seem to release the rope gripper when running on battery. As soon as the controller powers up on backup, the rope gripper stays locked, and someone has to manually open it before the rescue can even start.
Some of these setups use compact RB2 units inside the controller cabinet, and others are just commercial UPS units mounted outside, but both have the same issue.
Has anyone found a good workaround or setup that actually powers the rope gripper during battery rescue?
Would love to hear how others are handling this!
08/11/2025 5:59 am
There’s really no workaround for that. You need a true sine wave battery backup with a high amp-hour battery. Those computer UPS units just don’t have the muscle to run a hydraulic rope gripper. They’re not built for that kind of load. You can’t expect them to do magic!
18/12/2025 9:23 am
Seen it on Smartrise, what’s your controller