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© 2012 Installation and Reference Manual D0125 Rev. H
Section 4
—Installing Gate Edge (Contact Type) Reversing Sensor
WARNING: To reduce the risk of serious injury or death, read and follow all instructions in the gate operator
handbook and on the warning labels.
Automatic gate operators are intended for vehicular use and pedestrians must be routed to a separate main gate.
However, to provide a degree of protection should anyone happen to stray into the area of an automatic gate, sensors are
required. Generally two types of external sensors may be used:
Contact type sensors, such as an edge sensor
Non-contact sensors, such as photoelectric sensors
Current industry standards require the use of either type, or both, of these sensors as a secondary device in Class I and
Class II automatic sliding gate installations because the general public is likely to be present. Although alternative options
exist for Class III and IV installations, we highly recommend the use of external sensors for all automatic gate
applications.
The specifier or installer may choose either photoelectric sensors or edge sensors, or use these devices in combination,
but both the open and closing directions of gate travel must be guarded. The UL 325 standard for automatic sliding gates
specifically requires the following:
One or more non-contact sensors (photoelectric eyes) shall be located where the risk of entrapment or
obstruction exists, such as the perimeter reachable by a moving gate.
One or more contact sensors (edge sensors) shall be located at the leading edge, trailing edge and post mounted
both inside and outside of a sliding gate.
A hardwired contact sensor shall be located and its wiring arranged so that the communication between the
sensor and the gate is not subjected to mechanical damage.
A contact sensor that transmits its signal to the gate operator shall be located such that the signal is not impeded
by building structures or other obstructions and shall function under its intended end-use conditions.
The contact and non-contact sensors must be tested and labeled as “Recognized Components” under the UL 325
standard in order to be deemed acceptable for use in this application.
Study the entrapment protection schematic and consider your specific installation to determine where the
greatest risks of entrapment exist. Locate edge sensors and/or the photoelectric sensors accordingly. Be certain
that a sufficient number of sensors are used so that both directions of gate travel are properly guarded.
Summary of Contents for SlideDriver 50VF2
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Page 28: ...14 2012 Installation and Reference Manual D0125 Rev H Section 2 Technical Drawings...
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Page 36: ...22 2012 Installation and Reference Manual D0125 Rev H Section 3 Wiring Control Inputs...
Page 63: ...49 2012 Installation and Reference Manual D0125 Rev H Section 6 Internal Solenoid Lock Drawing...
Page 64: ...50 2012 Installation and Reference Manual D0125 Rev H Section 6 Internal Solenoid Lock Drawing...
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