Supervisor 3500 Installation Instructions
PUD3673R1-1
For assistance: support@alvaradomfg.com +1 (909) 591-8431
Page 31
Troubleshooting
This basic troubleshooting section is provided to aid installers with the most commonly encountered installation problems. If you
require more troubleshooting assistance, see the
SU3500 User Guide
.
Digital Position Encoder
Motor Controller Board Fuses
Fig. 29
Fig. 30
1
2
3
FUSES
1) 24VDC 6.3A 2) 5VDC 3A
3) 12VDC 2A
Digital
Position
Encoder
Lock
Tabs
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 fuse. 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 [Figure 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 [Figure 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
Discrete 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 in Appendix B on Page 28.
