Daikin BRR9B1V1, Руководство по установке

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9 | Commissioning
Installation manual
30
BRR9B1V1
Communication box
4P617761-1 – 2020.04
9 Commissioning
INFORMATION
For more information on how to do a test run of each unit, see the installation
manual or installer reference guide of each unit.
Are the LEDs (H1P~H4P) on the PCB (A1P) flashing?
▪ H1P: DIII connection (send).
▪
H2P: DIII connection (receive).
▪ H3P: RS‑485 connection (send).
▪
H4P: RS‑485 connection (receive).
Are the LEDs (H6P, H7P) on the PCB (A2P) ON?
If the LEDs are still flashing, communication is not established.
▪ H6P ON: RS‑485 communication is established.
▪ H7P ON: DIII communication of 1 or more units is established.
Can the operation data of each address be monitored on the monitoring
system?
Make sure that the power supply to each unit is turned ON.
Check that the address set on each unit corresponds with the address
displayed on the monitoring system.
Make sure that the power supply to each unit is turned ON.
Result: If there are no problems with the operation data and the remote settings,
the H2P LED will be OFF and the H6P and H7P LEDs will be ON. The test run is then
complete for A2P.
INFORMATION
▪
Confirmation of an error takes about 12 minutes.
▪
If there is no communication from the monitoring system (e.g. monitoring system
is turned OFF, incorrect polarity or disconnection), a communication error occurs
on the RS‑485 side.
What to do in case of a communication error?
▪ The operation data cannot be checked on the monitoring system.
▪ Check all items in "10 Troubleshooting" [
4
31] and correct any problem.
▪ " 10‒1 Operation procedure step 1" [
4
32] describes how you can check
some errors.