Installation and Operations Manual
— Model 400E Series
19
B&B ARMR
A Division of B&B Roadway and Security Solutions 0400E-9001 Rev J
5. TROUBLESHOOTING
The table below provides guidance on identifying and correcting issues with your Model 400
Series vehicle barrier. If you encounter problems that you cannot fix, contact B&B ARMR
and we will gladly work with you to correct them.
Model 4x0E Troubleshooting Guide
Symptom
Actions
Gate does not open or close
1. Check power, fuses
2. Check Limit Switches
3. Check PLC inputs
4. Check PLC outputs
5. Check that safeties are clear
6. Check push button operation
7. Check locking pin and limit switch,
gate will not open unless the pins are up
and LOCK PIN UP input is activated on
the PLC.
8. Manually open the gate by to see if
the problem is mechanical or
electrical. If mechanical,
check for binding on the gate.
Gate makes noise during operation
1. Check that roller wheel bearings are
greased
2. Check that gate is not moving too fast
3. Check that the guide wheels are properly
adjusted
4. Check that the spur gear is properly
adjusted to the gear rack
Gate moves too slowly
1. Check for mechanical binds (guide wheels
out of adjustment, debris under the wheels
or on the inside of gate
Traffic indicator light does not change
1.
Check proper limit switch operation
2.
Check bulbs
3.
Check PLC outputs
Locking pins are moving but not giving
signals up or down to I3
1. Check the limit switches at the
locking pin mechanism
After any major repairs, review the installation setup
instructions before returning the barrier to service
