Table of Contents
Advertisement
ENTRANCE GATE
NEVER
"MAINTENANCE" POSITION AFTER A GATE ARM REPAIR HAS BEEN
COMPLETED.
CONTROL OF THE MECHANISM VIA THE CROSSING CONTROL
SYSTEM WILL NOT FUNCTION AS INTENDED WHEN THIS FEATURE
IS LEFT IN THE MAINTENANCE POSITION.
2.8
OVER SPEED CIRCUIT
The over-speed snubbing circuit is always in place directly across the motor. It provides robust
dynamic braking if the motor RPM goes too high, driven by a gate arm with no counterweights, or
a broken gate arm. It provides snubbing protection in both motor directions.
SIG-QG-21-01
Version: A
WARNING
LEAVE
THE
OPERATING
2-10
MODE
SWITCH
IN
NOVEMBER 2021
THE
Advertisement
Table of Contents
