Siemens LDS 6 - 5.3 Faults Alarm

Alarms
5.3 Faults Alarm
LDS 6
68 Operating Instructions, 01/2009, A5E00295894-05
5.3 Faults Alarm
Any faults in the hardware that makes the analyzer unable to carry out measurements, result
in a "fault alarm". The measured value flashes, and then it is always necessary to take
corrective measures.
The faults listed in the following table lead to a fault alarm message in the logbook. These
can be individually deactivated by using function 88.
Table 5- 3 Fault alarm messages
No. Error Message Possible Causes Action
S1 Opto module Laser damage.
Leaking reference cell.
Reference cell displacement.
Electronics damage.
Contact service.
S2 Laser Current Change of laser current due to ageing of laser. Contact service.
S3 Signal Quality Signal amplitude too high due to high component
concentration.
Contact service.
Signal amplitude too low when measuring
temperature.
Contact service.
S6 External Fault External signaling. Check external equipment.
S7 Supply Voltage Channel Internal power failure. Contact service.
S8 Supply Voltage Analyzer Internal power failure. Contact service.
S9 Serial EEProm Internal EEProm failure. Contact service.
S11 FPGA Channel Electronics failure in data acquisition unit. Contact service.
S12 CAN Analyzer Electronics failure in internal communication. Contact service.
S13 CAN Channel Electronics failure in internal communication. Contact service.
S14 Data Flow Analyzer Electronics failure in internal communication. Contact service.