Description

STEM Safety Modules NCUM10-NCUM20

Functional Description

Safety control units are used to detect the uncontrolled movement of the lift cabin in accordance with EN 81-20.

Application fields

• Elevator uncontrolled movement detection
• Levelling and re-levelling circuits

Main features

• 24V AC/DC power supply
• Inputs for safety chain (voltage options: 24, 48, 60, 110, 220 V AC/DC)
• Inputs for floor position sensors
• 2 Safety outputs for UCM
• 2 Safety output for leveling and re-leveling
• 2 Auxiliary outputs for UCM and leveling
• Manual start for UCM circuit; manual or automatic start for levelling

• Certified according to EN 81-20 and EN 81-50 as a safety circuit for UCM detection
• UCM test circuit inputs and outputs (only for NCUM10)