BE-LCD-01 Operating and Installation Manual / Leaflet no. M375EV8 (01/2015)
19
Configuration faults
Code
Message
Explanation
Actions, remedial measures
C1
Software
version
Not all controllers have the same software version
installed.
Have the correct software version
installed by the Service
department.
C2
No. of
controllers
> 24
More than 24 controllers have been connected to the
communcation cable.
Reduce the number of controllers.
C3
Communication
cable
termination
The communication cable has not been terminated
properly. An active terminal resistor is required at
each end of the communication cable.
Activate the terminal resistors
using a switch on the EASYLAB
TCU3 main PCB.
C4
RMF
configuration
The room management function has not been
activated on any of the controllers.
Activate the RMF on a controller.
C5
dP controller ≠
1
Configuration of differential pressure control is
incomplete. There is either no differential pressure
controller on the communication cable, or the room
management function is not active.
Include a differential pressure
controller. Activate differential
pressure control in the room
management function.
C6
System
conflict
Not all controllers are of the same system type.
Connect either supply air
controllers or extract air
controllers but not both.
Operating states, alarm messages, fault displays
Consolidated room alarm faults
Code
Message
Explanation
Actions, remedial measures
F1
Category 1
alarm
Consolidated alarm, room - Category 1
Either the power supply has failed, or the smoke
extract function is active on at least one controller on
the communication cable.
Check controller.
F2
Category 2
alarm
Consolidated alarm, room - Category 2
A control error on at least one controller on the
communication cable results in a deviation of the
volume flow rate or face velocity.
Check controller.
F3
Category 3
alarm
Consolidated alarm, room - Category 3
A hardware error has occurred on at least one
controller on the communication cable.
Check controller.
5 Operation · Room control