Wallace Perimeter Security SPEEDGATE, Installation And Maintenance Manual

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UL 325 MONITORING REQUIREMENT FOR EXTERNAL ENTRAPMENT PROTECTION DEVICES
UL 325 Monitoring Requirement for External Entrapment
Protection Devices
In accordance with the UL 325 standard, after July 31st, 2018, all bi-fold gate operators will need a minimum
of 2 external entrapment sensors (1 open direction and 1 close direction) installed before automatic
operation is allowed, but all potential entrapment zones must be protected or eliminated.
ALL external entrapment protection sensors including non-contact (Photo Eyes) and contact (Edge) sensors
must be monitored, and the operator must verify the presence of every device at least once during each
open and close cycle.
Terminal 40 in the SpeedGate operator enclosure terminal strip is designated for monitoring of all external
entrapment sensor connections by looking for NC contacts connected to input terminals and cycling the
power.
Additional sensor inputs, if required, can be made available by installing additional blocks on the I/O
expansion board.
Upon monitoring, should any device not be present, or a fault condition occur that precludes the sensing
of an obstruction, including an interruption of the wireless signal to the wireless device or an open or short
circuit in the wiring that connects the external entrapment device to the operator and the device’s supply
source, the operator shall function with constant pressure for the direction of travel being protected, or
shall only be able to be moved manually.
The gate operator monitors the “presence” of each entrapment protection sensor. When the operator no
longer detects a sensor, it will cease automatic operation in the direction of the missing or failed sensor.
Qualified personnel must be physically present at the site of the gate system to troubleshoot monitoring
faults. If a fault in the entrapment protection system is detected, fault number 928 will appear on the
bottom left of the operator panel LCD diagnostic display. Refer to “F.928” on page 126 for troubleshooting
details.
When the fault or error is resolved, a normal command for a new open or close cycle will restore gate
operation.
Prior to resuming normal operation, it is the sole responsibility of the user to ensure the area is free of
obstructions and that it is safe to operate the gate.