Viking Access Systems UL 991 Garage Door Opener User Manual


 
TECHNICAL SUPPORT 1 800 908 0884
26 25
Radio Station
Mag.
Lock
Mag. Lock
Safety ConnectorOpen CommandsGuard StationMaster/Slave
Brake
UL
Siren
Radio
Rec.
UL
Sensor
O P EN RI G H T
24V BAT 24VAC
O P EN LE F T
Safety
Loop
Center
Loop
Obstruction
Sensor
Charger
Power
Low Battery
Motor Sensor
Hold Open
Timer
Stop
Overlap Delay
Close Open
Obstruction
Sensor
min. MAX
Overlap
Delay
1.5
0
3
Radio StationLoop ConnectorOpen CommandsGuard StationMaster/Slave
GND
Close
Stop
Open
GND
Close
Stop
Open
Gnd
Fire
Gnd
Strike
Gnd
Exit
Gnd
Center
Gnd
Reopen
Gnd
UL
Gnd
+28v
Gnd
Radio
Gnd
+28v
+28v
Mag.
Lock
F
ail
Safe/Secure
MAG. LOCK
N.C.
COM
N.O.
Charger
Power
Low Battery
Motor Sensor
Hold Open
Timer
Stop
Close
Open
30
60
Off
1
Radio
Rec.
UL
Sens
Safety
Loop
Center
Loop
Brake
Siren
The Obstruction Sensor detects obstructions
in the path of the traveling gate. The Trim
Pot for the Obstruction Sensor adjusts the
sensitivity level that triggers the Sensor.
When the Obstruction Sensor detects an
obstruction it will:
1. Stop the gate’s movement and reverse it
momentarily.
2. Bring the gate to a resting position.
3.
Disable the Hold Open Timer feature until the
Gate Operator receives a new command.
If another obstruction is detected before the
gate reaches either limit it will:
1. Stop the gate’s movement.
2. Bring the gate to a resting position.
3. Disable the Gate Operator.
UL325 standard requires an audio alarm to
go off after two consecutive entrapment
events
sensed by the Inherent Entrapment
Protection of the Gate Operator.
The audio alarm will sound for a period of 5
minutes or until the “Stop” Button is
pressed (see page 8 for remote installation
of a “Stop” Button).
Intelligent Obstruction Sensor
(Primary Entrapment Protection)
SPECIAL FEATURESSPECIAL FEATURES
Turning the Trim Pot clockwise
increases the sensitivity.
Turning the Trim Pot counter-
clockwise decreases the sensitivity
.
Trim Pot Location
(Single Unit Board shown)