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3 System Functions
3
3.3 Unintended Car Movement Protection (UCMP)
Background
The elevator car landing at a certain oor may move unexpectedly, with oor door unlocked and car door
open, if the motor or any component of the drive control system fails. A device is required to prevent or stop
the movement, guaranteeing safety.
To prevent failure of the motor brake that guarantees safe running, periodically detect whether the braking
force of the brake meets the requirements and detect the braking force of the control system.
Description
● UCMP detection
● Braking force detection
A door pre-open module MCTC-SCB-A/A1/C/D is required for the UCMP function.
Item
Synchronous motor Asynchronous motor
Without auxiliary brake Having auxiliary brake
Model
MCTC-SCB-A
1)
or MCTC-SCB-A1
1)
MCTC-SCB-C or MCTC-SCB-D
2)
1) CE certicated
2) Only the MCTC-SCB-D can be used for opposite door control.
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