Controlled Products Systems Group SWINGSMART DC 20 - Manual (Page 121)

Smart DC Controller Troubleshooting
Revision E Reference 6-23
Vehicle Detector and Loop Fault Diagnostics
If HySecurity HY-5A vehicle detector modules are used, the Smart DC Controller has the ability to store and
report detector and loop fault information for performance diagnostics.
If the Smart DC Controller senses a loop or detector problem:
• The LCD display flashes the name of the affected detector or error and the appropriate alert code.
• The buzzer chirps continuously at regular intervals until the issue is resolved.
Table 6-2 HY-5A Vehicle Detector Faults and Errors
Alert or Error
# LCD
Description Advisory Resolution
ALERT 7 FREQ SHIFT FAULT HY-5A vehicle detector -
Abnormal frequency change alert. The alert indicates an unstable loop
frequency. Check the loop and lead in wires
for problems. Replace them, if necessary.
ALERT 8 LOOP SHORTENED HY-5A vehicle detector -
Loop is shorted. The alert indicates that the loop and lead in
wires are shorting out. check the wires for
problems. Replace them, if necessary.
ALERT 9 LOOP OPEN HY-5A vehicle detector -
Disconnected loop alert. The alert indicates the loop wires are loose
or disconnected. Check the wires for
problems. Replace them, if necessary.
ALERT 10
I
2
C BUS ERROR
HY-5A vehicle detector -
Communications alert. The alert indicates the detector is not
communicating properly with the Smart
DC Controller. The alert occurs if the
detector is unplugged or the connection is
unstable. If communication is not re-
established within 30 seconds, the controller
will reset and the message changes to
ERROR 3.
ALERT 11 DETECTOR FAULT HY-5A vehicle detector -
Malfunction alert. The display indicates the HY-5A detector
malfunction. Check detector for problems.
Replace it, if necessary.
ALERT 12 ON TOO LONG Detector input triggered too long -
More than five minutes. The display indicates the HY-5A detector
malfunction. It alert also works for any
input connected to the terminal strip for
standard box detectors. Check that a vehicle
is not parked on the loop. Also, determine if
the loop is stable. An unstable loop can hold
the detector in a triggered state.
ERROR 3 DETECTOR FAILED HY-5A vehicle detector -
Communication failed. The Smart
DC Controller will behave as if the
detector is triggered, usually holding
the gate fully open. The alert indicates the detector is not
communicating properly with the Smart
DC Controller. The alert occurs if the
detector is unplugged or the detector has
failed. To replace the detector, press the
RESET button to clear the error and re-seat
the detector or install a new one.