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"System" faults
Most severe bus fault
Fault 1...10
Notes
Important note
Siemens Building Technologies
HVAC Products
5.5.2 Check "System" faults
Central communication unit faults and/or KNX network device faults.
• Select
Applications > Popcard...
• Operating page "Most severe bus fault" comprises multiple data points allowing you
to quickly locate the fault.
• Select
Applications > Popcard...
• Each operating page "Fault 1...10" comprises multiple data points allowing you to
quickly locate the fault.
If there are more than 10 faults, fault no. 11, etc., is displayed only after one of the first
10 faults is corrected.
Some central communication unit errors are displayed under Faults "Local", and
because the central communication unit is also a device on the KNX network, under
Faults "System".
After commissioning, the red LED "System" on the central communication unit must not
be lit.
Commissioning instructions OZW775 V2.01
Further commissioning steps
command sequence: Faults current > System.
command sequence: Faults current > Fault 1...10.
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CE1C5663en
22.06.2012
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