Supervisor 4500 User Guide
Page 48 For Assistance: [email protected] +1 (909) 591-8431
PUD4386R1-1
Troubleshooting
Symptom
Possible Cause
Solution
Unit will not
turn on
No power
Make sure that there is power to the turnstile power terminal block.
Check if LEDs are lit on the I/O control board and the seven-segment
display is showing a number.
Blown fuse
Check the associated primary power fuse in the external power supply
enclosure. If necessary replace with a 2.5A (slo-blo) fuse.
Constant
auditory
alarming
Communication/
low-voltage
cable
Check the I/O control board to see if amber LEDs are lit. If they are
lit, the most likely problem is a loose or improper communication
connection. Disconnect the black 16-pin connectors from the I/O
control board and motor controller boards, apply contact cleaner /
lubricant to connector pins and reseat. Retry operation.
If condition persists, perform the same process on the 16-pin
connectors going into and out of the light boards and sensor boards.
Retry operation. Alvarado Technical Support has a process document
and can provide additional instructions.
Barriers
operate
erratically
Barriers do not
move.
Digital position
encoder is not in
place
Verify the digital position encoder is secured to the pulley shaft with all
the locks tabs in place. [Fig. 29].
NOTE: After re-seating the digital
position encoder, the barrier home position must be reset PRIOR
to power cycling the turnstile.
Blown 24VDC
fuse on the
motor controller
board.
Locate the motor controller board fuses [Fig. 30]. Using a multimeter,
check the 24VDC 6.3A fuse for continuity. If the fuse is blown, contact
Alvarado for replacement instructions.
Blocked
Sensor
Auditory
Alarms
sounds after
15 seconds
(default).
Wire or cable
blocking sensors
Check for a stray wire or cable in front of the transmit and receive
operational sensors (horizontal arrays).Tuck any stray wire or cable
out of sensor viewing area. If this does not resolve the problem,
contact Alvarado Technical Support for instructions on using the
ADR-UP and ADR-DN buttons on the I/O control board to perform
diagnostics on sensors.
Barriers either
stay open or
start to close
then open
back up
Safety sensor
blocked
Check for a stray wire or cable in front of the individual transmit and
receive safety sensors. Tuck any stray wire or cable out of sensor
viewing area. If this does not resolve the problem, contact Alvarado
Technical Support for instructions on using the ADR-UP and ADR-DN
buttons on the I/O control board to perform diagnostics on sensors.
Barriers do not
align in closed
position
Home Position
needs to be
reset
Follow the Setting the home position instructions located in the
SU4500 Installation Instructions
.
Use this troubleshooting section to diagnose and resolve common turnstile issues. If your particular
issue is not covered in this troubleshooting section, please contact Alvarado Technical Support for further
troubleshooting assistance.
