Trouble Shooting - Cedes cegard/Lift LI Mode D'emploi

cegard/Lift LI

10. Trouble Shooting

Problem
No function (A)
No function (B)
No function (C)
Control unit light curtain
is beeping when light
curtain is interrupted
(Buzzer on), but relay
does not switch
No function (D)
No function (E)
No function (F)
The light curtain repeats
power up sequence for
no reason
Sporadic switching
without object
interference at the
same position
Sporadic switching
without object
interference at
different positions
The elevator makes
an emergency stop
during transit without
the light curtains being
interrupted
© CEDES | V 2.7
Check
  Is the power supply correctly connected??
 Is the internal fuse ok?
 Is power supply between 17 ... 30 VDC?
 
 Is there an object in the surveillance area?

 Are the drilled holes in the car wall large enough
(minimum 10 mm), exact fit with sensor elements?
 Are the opto edges correctly plugged in to the
control unit light curtain?
  Is the input SigIn correctly connected? The relay

will not switch until SigIn is connected to (20 ...
30 VDC).

  Note 'No function (B)'

  Note 'No function (B)'

 Are there other infrared or flashing light sources

near the light curtain (i.e. through beam sensor)?
Please remove!
 Does the power supply suffer from voltage dips?
Connect elko with at least 470 uF / 50 V via "GND"
and "+24 V"!

 Is there an object near the protective area (hang

cable, ...)
 Operating range exceeded
 After the elevator is called the locking latch is
deactivated but the safety light curtains do not
allow the elevator to move, although there is
nothing in the monitored area. Electromagnetic
disturbances!

 Are there other infrared or flashing light sources

near the light curtain (i.e. through beam sensor)?
Please remove!
 Are the drilled holes exact and large enough
(Ø 10 mm)
 Is the metal housing of the control unit light curtain
earthed?
 Has the "GND" terminal been earthed?
 Is there an object near the surveillance area (hang
cable...)
 Are the terminals SigOut and
the wires as short as possible? If longer wires are
needed use relays near the terminals SigOut and
Alarm to decouple.
  Check the control unit light curtain is earthed

 Use fault-clearance variation 1 (if necessary fault-
clearance 2)
Further notes
Chapter 7
Chapter 8.1
Chapter 8.2
Chapter 8.1
Chapter 8.2
connected? Are
Chapter 6.2
Chapter 8.1 (8.2)
English
9