Table 8: Troubleshooting Codes
Alert/Fault/Error
Display
Type
Buzzer
Possible Cause
Suggested Corrective Action
No display, LED blinks
ALERT
Smart DC Controller is receiving power,
but battery voltage is very low.
Several possible causes:
• The AC power has been shut off from
the operator for too long and the
batteries are drained.
•
Wiring problem.
•
Batteries no longer hold a charge.
•
The Smart DC Controller failed.
•
Bad transformer.
See corrective action above.
HYSECURITY
LOADER
ALERT
Software is currently being loaded.
Wait for software to finish loading.
FORCE OPEN
ALERT 1
2 chirps/s
for 30s
The gate has been forced open from a full
close limit and is being prevented from
re-closing.
Will self-clear after an open or close
input.
DRIFT CLOSED
ALERT 2
2 chirps/s
for 10
seconds
The gate has drifted closed from a full
open limit and is being prevented from
re-opening.
Will self-clear after an open or close
input.
EXCESS DRIFT
ALERT 3
Gate drift in transit - Advisory only. The
alert appears if the gate drifts three times
in a five minute period.
High wind factor: Remove arm or
open gate.
Slide gates: Check the track to
make sure it is level.
MOTOR OVERLOAD
ALERT 4
2 chirps/s
every 15
seconds
Thermal overload alert. Motor drive
heat sink exceeds 210°F. When the alert
is triggered, the gate can only “fully
open” until the alert is cleared. The alert
temporarily disables the operator.
1. Check gate hardware.
2. Check for properly sized weight/
length of gate/arm.
Alert automatically clears when the
temperature drops below threshold.
BOTH LIM ACTIVE
ALERT 5
2 chirps/s
every 15
seconds
Both limit switches are on at the same
time. Possible causes:
• Short in wiring
•
Stuck limit switch
• Debris in limit plate area (SwingSmart)
The SDC is seeing both limits
tripped at the same time.
Repair any wiring issues.
LIM NOT RELEASED
ALERT 6
2 chirps/s
every 15
seconds
The limit did not release when the
operator was commanded to move.
Possible causes:
•
Broken drive belt.
•
Hardware holding the arm.
•
Check/replace drive belt.
•
Release any holds on the arm.
•
Relearn Limits.
FREQ SHIFT FAULT
ALERT 7
2 chirps/s
every 15
seconds
An Hy5x vehicle detector: Abnormal
frequency change alert. Likely causes are
poor integrity of loops or metallic objects
within range. The display indicates which
detector the alert applies to: Exit Loop
(ELD), Inside Arming Loop (IALD), Outside
Arming Loop (OALD), Center Loop (CLD).
Check the loop, lead in wires, and
roadway for problems. Replace
them, if needed.
LOOP SHORTED
ALERT 8
2 chirps/s
every 15s
An Hy5x vehicle detector: Loop is shorted.
Inadequate insulation of loop wires.
Temporarily switch detector to be
sure the loop is at fault, and then
repair it.
LOOP OPEN
ALERT 9
2 chirps/s
every 15s
An Hy5x vehicle detector:
Disconnected loop alert.
Lack of continuity in the loop wire possibly
caused by broken loop wire or wire
unplugged from detector.
The loop and lead in wires should
be checked for problems or
replaced.
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Troubleshooting
MX3650-01 Rev. D
61
