Toshiba Carrier BMS-IFBN1281U-UL Service Manual page 99

BN interface
11-4. Directly After Changing the microSD Card (Service Component)
Problem
Startup step 1
The LED display does not
LED-L1 is unlit.
Startup step 4
(LED-L1 is lit)
The indoor unit configuration
acquired using BACnet
communication is wrong
The IP address of the BN
interface is wrong
The instance number of the
BACnet Device object is
wrong
11-5. When the Power Supply to the Indoor Units Is Interrupted
Problem
The Present Value property of the Input
Object (Section 3-3.) is 0, 1, or another
initial value.
<Initial values>
Input Object Present Value
ON/OFF Status 0:inactive
Operation Mode 2:Cooling
Set Temperature 25°C, 77F
Room Temperature 18°C, 64F
Fan Speed 4:H
Louver 7:stop
Filter Sign 0:inactive
Permit / Prohibit of
1:Permit
Local
The Present Value property of the Input
Object (Section 3-3.) has not changed
after a test run of the BN interface.
The FAULT bit and the IN_ALARM bit of
the Status_Flags property of the Input
Object (Section 3-3.) are TRUE.
The Reliability property of the Input
Object, described in "Section 3-3.", is
unreliable-other (7).
Cause
The BN interface internal microSD card has
malfunctioned.
There is an error in the settings file.
It has not been changed from the default
setting.
It has not been changed from the default
setting.
It has not been changed from the default
setting.
Cause
While the power supply to the
indoor units has been interrupted,
power is supplied to the BN
interface.
The power supply to the indoor
units has been interrupted.
The power supply to the indoor
units has been interrupted.
The power supply to the indoor
units has been interrupted.
Action
Check that the microSD card is inserted
correctly.
Check that the microSD card is inserted in the
correct slot.
Execute Air-Conditioning Search Mode again.
CAUTION
Check that the search target indoor units and
outdoor units are turned on.
Carry out a test run.
Use the engineering tool to change the IP
address.
Use the engineering tool to change the instance
number.
Action
Power on the indoor units.
Power on the indoor units.
Power on the indoor units.
Power on the indoor units.
Service Manual
-EN
99