Honeywell SYA14 Series Manual page 67

Troubleshooting Flow diagram (sheet 2)
Continued from sheet 1
On the emitter
unit, is the red
alarm LED
flickering ?
NO
On the receiver
unit, is the red
cross-talk LED
ON ?
NO
Machine Receiver failed. Replace it
operates? with an alternate one
NO
Go to ***
(on sheet 1)
Return emitter and receiver
units to Honeywell
107031-23 EN FR26 GLO 1199 Printed in France
Emitter failed. Replace it with
YES
an alternate one
Go to *** Machine
NO YES Machine working
(on sheet 1) operates?
Reduce the emission power
YES of the second emitter which
interfere with the receiver unit
Machine
YES Machine working
operates?
NO
Inverte the light curtains
transmission directions or
isolate the light curtains with
an opaque barrier to prevent
cross-talk
Machine
NO YES Machine working
operates?
67