11
Connecting Additional Safety Devices
TheGTOPRO®3000isequippedwithbuilt-inobstructionsensitivity.Theopenerisdesignedtostopandreversethegate
within2secondswhenitcomesincontactwithanobstruction.However,obstructionsensitivity,althoughfunctioning
properly, may not be sensitive enough to prevent bodily injury in some circumstances. To augment your protection against
entrapment, GTO recommends using some form of additional safety device. When installed, contact sensors must be
mountedincompliancewithUL325,UnderwritersLaboratoriessafetystandardforgateopeners.Reviewpage5forinfor-
mationaboutmountingrequirementsforsafetyedges("contactsensors").
Refer to the sensor manufacturer’s instructions for information
about installing these devices on a vehicular gate.
PLEASE NOTE: Contact sensors are not included withtheGTOPRO®3000.
The GTO PRO® 3000 will ONLY accept accessory devices with normally open dry contact output.
Make sure the power switch to the opener is turned
off before connecting safety device wiring to the
terminal blocks. Unplugging the transformer does
not turn power to the opener OFF.
Contact Sensor Input Connection:
ConnectoneoftheOPENEDGEcontactsensorwirestothe
COMMON (COM) terminal and the other to the OPEN
EDGEterminalontheGTOPRO®3000controlboard.
ConnectoneoftheCLOSEEDGEcontactsensorwirestothe
COMMON (COM) terminal and the other to the CLOSE
EDGEterminalontheGTOPRO®3000controlboard.
Activation of a contact sensor while the gate is in motion
will cause the gate to stop and reverse within two (2)
seconds.
Contact Sensors (safety edges)
If not installing a contact sensor skip to next section.
Although GTO strongly recommends the use of additional safety devices, we do not endorse any
specific brand names. Only use products that are certified and listed to be in compliance with
any applicable UL standards (Underwriters Laboratories) and national and regional safety
codes.
Call GTO Sales at 1-800-543-4283 for information on compatible
products for your specific application.
GRNCOMCOM
CYCLE
CLOSE
SAFETY
SHADOW
LOOP
CLOSE
EDGE
OPEN
EDGE
EXIT
OPEN
BLK
RECEIVER
RED
RECEIVER
ALM
BLK
CONTROL INPUTS
Wire from Contact Sensor
(open safety edge)
Wire from Contact Sensor
(close safety edge)
NOTE: If the close edge is contacted when the gate is opening, nothing happens. If the close edge
is contacted when the gate is closing, then it reverses. If the open edge is contacted when the gate is
closing, nothing happens. If the open edge is contacted when the gate is opening, then it reverses.