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OTIS LB Board – Key Parameters

Sep 30th,2026 187 Views

Quick reference for common LB board settings.

Door Time (0–4H)

C-NT / H-NT: Door open → close delay

REV-T: Door reverse time (DC only)

CCP-T: Car call priority time

ARD: Auto return

ARD / DOP / CK:

0 = None

1 = ARD (10s)

2 = DOP (10s)

4 = ARD (3 min)

5 = ARD (15 min)

Floor Settings (5–DH)

TOP: Top floor

LOBBY: Lobby

BOT: Bottom floor

CTL-P: Parking floor

EPO-P: Emergency power floor

EFO-P: Fire service floor

Control Mode (0EH)

0: Full collective

1–3: Down collective modes

Drive (0FH)

1: VVVF

Group (10H)

0/1: Single (50/60Hz)

8–B: Dual (Car A / B)

Emergency Functions

EPO (11H): Emergency power

EFO (12H): Fire service

ES (13H): Emergency stop

Other Functions

PKS (14H): Parking / Close / Weighing

MLB (15H): Signal board / Light curtain

Summary

LB board settings mainly involve door timing, floor configuration, control mode, and emergency functions.

#ElevatorParts #OTIS #LiftMaintenance #ElevatorControl

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