HySecurity UL 325 - Barrier Arm Site Assessment Diagram; UL 325 Exception for Vehicular Barrier Arms

dIaGram 3: typIcaL barrIer arm SIte aSSeSSment
UL 325 Exception: An operator for a vehicular barrier (arm) that is not intended to move toward a rigid object closer
than 16 inches (406 mm), and does not have a pinch point between moving parts by virtue of the operator’s design or
as a result of installation in accordance with instructions supplied with the operator as specied in UL 325 Standard of
Safety is not required to be provided with means to protect against entrapment.
HySecurity barrier arms provide features for object detection. For more information, refer to the gate operator’s product
manual. Since the StrongArm falls in the exception classication for monitored entrapment, your options for accessory
connections and programming vary depending on your site requirements.
If your StrongArm uses version h4.50 software or higher:
• Build Year (BY) is set to 2
• SENSOR inputs default to normally closed contacts
• SENSOR input conguration defaults to “NOT USED”
• Gate will run with all SENSOR inputs set to “NOT USED”
All three sensor inputs can be re-congured.
NOTE: Even though no wires are attached to a SENSOR input, it must be “set” to 1 (NOT USED). The software requires
conrmation of all 3 monitored input designations before allowing the gate to move.
M
X
31
86-
0
1,
-02,
-
0
3
Photo eye receiver (not
shown in illustration)
Photo eye
emitter
WARNING Signs
Access control device
NOTICE: Site design considerations: Any rigid object such as, bollards, photo eye mounting
posts, fencing and walls cannot be within 16 inches of barrier arm travel. If a potential exists for a
barrier arm to travel within 16 inches of a solid, rigid object, the potential entrapment zone must
be protected with a monitored external entrapment protection sensor.
20 D0726 Rev. J UL 325 - 2016 HySecurity Monitored Sensors © 2016 www.hysecurity.com
www.hysecurity.com © 2016 Quick Start D0726 Rev. J 21