35
SAFETY DEVICE CONNECTIONS
INHERENT OBSTRUCTION SENSING DEVICE:
NOTE: The gate MUST move smoothly and easily in manual
operation before attempting this adjustment.
WARNING: TURN OFF POWER TO OPERATOR WHEN
MAKING ANY ADJUSTMENTS.
This unit is supplied with a current sensing system, which
will stop the gate when it encounters an obstruction and then
backs the gate off approximately 2 inches. If the gate is
started again and a second encounter occurs before hitting a
limit switch, the gate will stop and sound a warning signal. A
constant pressure control will then be needed to start the
gate. This sensing system has sensitivity adjustments
located on the printed circuit board. The force required to
activate the system must be adjusted in both OPEN and
CLOSE directions separately. Start at minimum and
increase force setting until it is just over what is required to
move the gate smoothly without any nuisance tripping.
WARNING:
NEVER INCREASE FORCE SETTING TO MAKE UP
FOR A GATE THAT IS NOT MAINTAINED PROPERLY. THIS
WILL DESENSITIZE THE OPERATION OF THE SAFETY
SYSTEM.
MINIMUM MAXIMUM
CLOSE OPEN
OVERLOAD FORCE
R35 R36
LOCATION OF
OVERLOAD FORCE
ADJUSTMENT
Figure 14
36
SECONDARY OBSTRUCTION SENSING DEVICES
Another sensing device (Either a contact or a non-contact
system) must be installed and connected to this unit to
increase protection against entrapment per U/L requirements.
NOTE: All safety device contacts must be NORMALLY OPEN.
NOTE: 24 VAC power is available at marked terminals for
devices that may require it (
i.e., photo eyes, wireless edges, etc).
CONTACT SENSOR INSTALLATION:
NOTE: When wireless sensors are installed it must be done so
there is no signal interference.
NOTE: All hard wiring to safety edges must be installed so
there is no threat of mechanical damage to wiring between
components, when the gate is moving.
1. Install electric edge sensors in locations shown below.
NOTE:
A separate pedestrian gate must be installed if there is
no other entry access but the vehicular gate.
Electric Edge
Mounted On
Vertical Outside
Edge Of Gate
Horizontal Electric
Edge Mounted
On Inside Bottom
Of Gate
Horizontal
Electric Edge
Mounted
On Outside Bottom
Of Gate
