Mercury 310 Automated Gate System
Installation and Programming Manual
4848
9.3 FAIL-SAFE & ALARM BUTTONS
The Fail-Safe and Alarm buttons operate as described below. These should be set according to user preference.
Mercury 310
RED LED = ON:
Fail-Safe is enabled, and gate will automatically move to the
open limit if the battery voltage falls below a certain limit.
RED LED = OFF:
Fail-secure is enabled and the gate will automatically move to
the close limit if the battery voltage falls below a certain limit.
RED LED = FLASHING:
Fail-Secure or Fail-Safe is currently activated.
RED LED = ON:
When ON, the warn-before-operate alarm will sound for three
(3) seconds before the gate starts moving when an OPEN or
CLOSE command is made, either by pressing the gate buttons
or when a sensor, such as a ground loop, is tripped. The alarm
will continue to sound for two (2) seconds after the gate starts
moving, then turn o.
NOTICE
An automatically opened gate might not be desirable if gate security
has a priority over gate access. See Section 6 for instructions for
manually opening a gate in the event of a power failure.
NOTICE
Alarm will sound during safety critical scenarios regardless of this
setting.
CAUTION
The alarm connected to the Mercury 310 Controller should never be
disconnected! This alarm functions as the entrapment alarm and is
a requirement under UL325 requirements.
FAIL-SAFE Button (On/Off)
ALARM Button (On/Off)
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