Chamberlain LiftMaster Professional CB24 Manual Del Usuario página 39

FAULT
GATE RUNS TOO SLOW
GATE DOES NOT CLOSE
AUTOMATICALLY
GATE WON'T STAY OPEN
WHEN USING FIRE INPUT
Fire Input switch should
be a constant contact
key switch connected to
Open Loop input
(Open only).
INTERRUPT LOOP DOES
NOT ACT PROPERLY
EXIT LOOP (FREE EXIT)
DOES NOT OPEN GATE
MAGLOCK DOES NOT
WORK
Maglock does not hold
gates locked
STATUS INDICATOR LED
BLINKS
# OF BLINKS (1-11) AND
THEIR MEANING
PHOTO LED'S ON BOARD
INDICATE PROBLEM BUT
PHOTOCELLS AND WIRING
ARE OK
T R O U B L E S H O O T I N G
POSSIBLE CAUSE
1) Open and Close Limits are set too
close together.
2) The gate is starting within the ramp
down distance from the Open or
Close Limit.
1) Verify that the TTC is turned OFF.
2) Gate opened by an obstruction reversal.
3) The Interrupt Loop is obstructed.
4) Obstructed close photoelectric eye or edge.
5) The Open input is "stuck".
1) Fire Input switch is a momentary
contact.
1) Bad loop sensor or loop detector.
2) Bad connection between loop sensor,
loop detector, and the control board.
1) Bad loop sensor or detector.
2) Bad connection between the loop
sensor, loop detector, and the
control board.
3) The Shadow Loop is obstructed.
4) An Open photoelectric eye or safety
edge is obstructed.
1) Bad connection between the Maglock,
its power supply, and the control board.
2) Bad Maglock or Maglock power supply.
3) Large gap between gates.
4) Bad control board.
1) No stop switch connected
2) Gate 1 arm disengaged
3) Gate 2 arm disengaged
4) Both gate arms disengaged
5) RPM reversal
1) Dip switch setting incorrect NO/NC
for Photo/Edge.
2) Photocell still bad or misaligned
FIX
®
If the Open and Close Limits are set within the ramp down distance of
each other, the gate will run at slow speed all the time.
®
Gate will run slow to limits if motion is started within the ramp-down
distance from the limit.
®
Verify that the TTC (Timer To Close) is ON and set.
®
Check gate area to ensure path is unobstructed.
®
Check the Open Loop area to ensure all obstructions are removed. If an
external opening device or entry or entry system is attached, check for
proper operation of that system.
®
Make sure the Fire Input switch is constant contact. If it is not, replace
with a constant contact switch.
®
Replace loop sensor or loop detector.
®
Check connections to make sure they are secure.
®
Replace loop sensor or loop detector.
®
Check connections to make sure they are secure.
®
Check the gate area to make sure all obstructions are removed.
®
Check the gate area to make sure all obstructions are removed.
®
Check connections between the Maglock, its power supply, and
the control board to make sure they are secure.
®
Replace Maglock or Maglock power supply.
®
Reduce the gap between the gates.
®
Replace the control board.
6) Force reversal
7) Processor Reset
8) ROM check failed
9) RAM check failed
10) EEPROM check failed
®
Set Dip switch correctly
®
Set program "Save" switch to OFF
®
Check LED's of Photocells if LED is constant.
®
Detach Photocells and jumper output "Dip to NC" to see if it works.
®
Switch to OFF or cycle switch with a pause (2-3 seconds)
19
11) Battery low or bad