Cedes cegard/Lift LI Betriebsanleitung Seite 8

cegard/Lift LI
8. 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
8
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Check?
•
Is the power supply correctly connected??
  . S  
•
Is the internal fuse ok?
•
Is power supply between 17 ... 30 VDC?
•
Is there an object in the surveillance area?
¿  . S ¿ ¿
•
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).
¿  S ß  Note 'No function (B)'
¿  S  ß Note ' No function (B)'
•
Are there other infrared or flashing light sources near the light
¿  S S S
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 10mm)
•
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 Alarm connected? Are 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)
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Installation and Operation Manual
Further notes
Note chapter 5
Chapter 8.1
Chapter 8.2
Chapter 8.1
Chapter 8.2
Chapter 4.2
Chapter 8.1 (8.2)
© CEDES/July 2017