Airwell DLF 18 DCI, Техническое руководство

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12- K
CONTROL SYSTEM
SM DL
F 1
-A.1 GB
12.3.2 Communication with Indoor Unit
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12.3.2.1.1 ‘Bad Communication’ fault
The system keeps a balance of a good/bad communication packet ratio. When the ratio becomes high the system
enters ‘Bad Communication’ fault. The system recovers from that fault when the ratio becomes small again.
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12.3.2.1.2 ‘No Communication’ fault
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compressor to off.
The system will recover from ‘No Communication’ fault when counter is below 10 and legal massage is received.
+  ! % %
the ODU unit will be forced to Idle mode.
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IDUs messages Does DMSMP
Message exist?
ODU report ‘no-
communication
ODU force to Idle
All IDUs Loose comm. No Yes Yes
All IDUs Loose comm. Yes No Yes
Some IDUs loose comm. Yes No
No
The IDU channel Lost
inactive channel.
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This test is continuously performed while the system is on:
12.3.3.1 Communication Channel Auto Detection (Single or Multi)
System is continuoesly checking wether it is a single or multi system according its 2 seperate communication lines.
Case
Single split
Channel
Multi Split
Channel
Fault Action
1 (Normal) Detected Not detected No Fault Continue to the next step
2 (Normal)
Not
Detected
Detected No Fault Continue to the next step
3 (Abnormal)
Not
Detected
Not Detected ‘No Communication’
Present Fault under the HMI.
Unit is forced to Idle mode.
4 (Abnormal) Detected Detected
‘Mismatch between
IDU and ODU models’
12.3.3.2 Model Plug & Indoor Capacity Test
Test How to check? Error to report?
System Action
(ODU Mode)
Jumper is inserted/
' ! ODU model is 0 (zero). “Missing ODU
Force to Idle mode.
Jumper/DIP is
software W Force to Idle mode
IDU-ODU capacity
group mismatch When ODU model is
"
group is not allowed. “Mismatch between IDU
and ODU models “ Force to Idle mode