Installation and Operations Manual
— Model 400E Series
14
B&B ARMR
A Division of B&B Roadway and Security Solutions 0400E-9001 Rev J
3.3.4 Test CLOSE operation: Verify gate is positioned between limit switches and does not
block locking pins (Model 450 only). Give the gate a CLOSE command and verify that the
pinion turns in the direction that would move the gate towards the receiver stanchion.
Manually trip CLOSE LIMIT A and verify the motor begins to slow. Manually trip CLOSE
LIMIT B and verify motor stops. Verify the locking pin actuator (Model 450) lowers the
locking pins until the LOCK PIN DOWN input comes on and the actuator stops.
3.3.5 Test OPEN operation: Give the gate an OPEN command. Verify the locking pins raise
and the LOCK PIN UP input is activated. Verify the motor rotates correctly to move the gate
in the open direction. Manually trip the first limit switch and verify the OPEN LIMIT A
PLC input activates and the motor begins the slow. Manually trip the second limit and verify
the OPEN LIMIT B activates. Verify the motor stops.
The Model 450 system is designed with a software parameter (LPMRT) to limit the actuator
run time in case of malfunction and the LOCK PIN DOWN input does not activate. The
default value is 8 seconds. During a malfunction the lock pins will reverse to a retracted
position and the RED INDICATOR output will flash rapidly. Investigation and adjustment
of the trip plates and beam should be made to ensure the pins engage in the slots in the beam.
To clear the alarm the CLOSE command can be re-issued.
3.3.6 Set the motor mount: With the gate in a half open position, and the spring on the
motor drive assembly is in the factory compressed state, raise the assembly into the rack until
the pinion gear meshes with the rack 80%. Move the gate to the open position, and observe
the spacing between the pinion gear and rack. Move the gate to the closed position and
observe the spacing. Using the vertical motor adjustments move the drive system until the
spacing between the rack and pinion is engaged at least 80% for both fully open and fully
closed. The spring system may compress if required to meet the 80% minimum requirement.
3.3.7 Install Safety stop rubber pads: With the stop plate off, install the rubber pads on the
inside bottom lip of the gate beam. Place the end plate back on and tighten the bottom bolts
first. Tighten top bolts last to ensure rubber pad is fully secured. If required both rubber
pads can be placed on one side of the beam.
Before engaging the pinion with the rack, verify that the limit
switches are mounted and wired correctly. Failure to do so
could cause severe damage or injury.
