43
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: Wireless sensors must be installed 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 Fence
Electric Edge
Mounted On Gate
Trailing Edge
Electric Edge
Mounted On Gate
Leading Edge
Electric Edge
Mounted On Post
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2. Connect contact sensor edges to the control board as shown in the illustration
below.
NOTE: Leading edge is connected to “CLO EDG” and “COM” terminals. Trailing
edge, Post Mounted edge and Fence Mounted edge are connected to “OPN EDG”
and “COM” terminals.
3. After sensors are mounted and electrically connected, turn on the power.
4. Test the close obstruction sensing system for proper operation, by depressing
the leading edge sensing strip while the operator is running closed.
NOTE: The operator should stop and reverse a short distance and then stop.
5. Run the operator to the close limit.
6. Test the open obstruction sensing system by depressing one of the other three
edge sensors while the gate is opening.
NOTE: The operator should repeat the STOP AND REVERSE procedure.
8. Run operator to the close limit and repeat step #6 for the other two edges.
NOTE: If an edge is activated twice or a second edge is activated before a
limit is hit (full open or close) operator will stop and sound a warning horn.
To reactivate system turn operator power switch off then on.
REV
OPN
EDG
CLO
EDG
MST
OPN
MST
CLO
COM
COM
COM
OFF MAX
SHADOW
LOOP
LD7
12345
Leading Edge
Trailing Edge
CONTACT SENSOR CONNECTION
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