Led Display During Normal Operation - Toshiba Carrier BMS-IFBN1281U-UL Service Manual

BN interface
Example 2: Duplicate central control addresses, indoor unit information Ri** could not be acquired
1.Execution day/time
2.IP address 192.168.1.100
3.No. of indoor units
No. of outdoor header units
4.Message <Info> Outdoor unit search invalid.
5.TCC-LINK board information
BN-I/F address
0x0401
6.Detection result details
NetId Central control address
1 1
1 2
1 3
1 4
1 5
1 6
Abbreviated
1 127
1 128
NetId Central control address
In the above example, indoor unit 1-3 and indoor unit 2-1 had the same central control address. As the central control address
of one of the indoor units is wrong, change the central control address setting.

9-4. LED Display During Normal Operation

When operating normally the LED display is as follows.
LED display during normal operation
LED
POWER
RS485
LINK1(Uh)
LINK2(Uh)
ERROR
L1
90 -EN
"2021/05/26 13:15:26.50"
4
0 , follower units 0
Indoor unit address Communication division
1_1 OLD
1_2 OLD
1_3 2_1 OLD
1_4 OLD
Indoor unit address Communication division
LED color
Red
Green
Orange
Orange
Red
Green
Model name Serial no.
MMC-AP0154H-E
MMC-AP0154H-E P20120430002
RAV-SM564MUT-E P20080730218
MMC-AP0154H-E P20120430003
Model name Serial no.
: Lighting, : Blinking,
LED display
"Operating normally" state in
"Section 8-1.".
Service Manual
Error
"2: Data acquisition
error(Ri4)"
1:Duplicate central
control address"
Error
: Lights out