Troubleshooting - Mitsubishi Electric LMAP04-E Installation Manual

6-2 Troubleshooting

No. Error content
LED002 is ON
1
2 The air conditioner
unit does not operate
even by performing
a test run using the
LM ADAPTER'S switch
SW1-9.
3 The LOSSNAY unit
does not operate
even by performing
a test run using the
LM ADAPTER'S
switch SW1-9.
4
Even if it is
operated with the
remote
controller/system
controller, it is not
informed to the
host on LON side.
Cause
(1) It takes time for the initial processing
to complete (normal).
(2)Setting on M-NET side is not properly
completed.
(3) M-NET power supply switch has not
been set.
(4) The power supply to the air conditio-
ner unit is disconnected.
(1)The LM ADAPTER is not completely
initialized.
(2)Setting on M-NET side is not properly
completed.
(3)If system controller is used together
LM ADAPTER is not registered to
system controller.
(1)The LM ADAPTER is not completely
initialized.
(2)Setting on M-NET side is not properly
completed.
(3)If system controller is used in
combination, LM ADAPTER is not
registered to system controller.
(4)The independent/interlocked
LOSSNAY of LM ADAPTER is not
set.
(1)The LM ADAPTER is not completely
initialized.
(2)Setting on M-NET side is not properly
completed.
(3)If system controller is used in
combination, LM ADAPTER is not
registered to system controller.
®
(4)L W network transmission
ON ORKS
line is not properly connected.
(5)The termination of L W
ON
network is not properly set.
®
(6) Binding of L W
ON ORKS
not properly ended.
It can take about 15 minutes for the initial processing
to complete. Wait until the initial processing finishes.
Verify that the test operation of the air conditioner is
properly completed. Verify that M-NET transmission
line is properly connected.
Follow the instructions in "4. System Setting" and
check the power supply unit setting, and the LM
ADAPTER power supply switch connector setting.
Verify that the air conditioner unit power supply is
not disconnected.
* Use a tester to check the voltage of the terminal
(TB2). DC17-30 V
Turn OFF all SW2. After verifying that LED002 is
OFF, test the operation again.
Verify that the test operation of the air conditioner is
properly completed. Verify that M-NET transmission
line is properly connected.
In system controller, register LM ADAPTER as the
sub system controller.
Refer to 2-(1).
Refer to 2-(2).
Refer to 2-(3).
Turn on SW1-5 of LM ADAPTER, and reset the
power supply.
Refer to 2-(1).
Refer to 2-(2).
Refer to 2-(3).
Check for disconnection on TB21, short-circuit and
wire breakage on the network wire and so on.
Verify that the termination of L
®
ORKS
properly set according to the system design.
Apply the binding again.
network is
17
Checking method and remedy
®
W
ON ORKS
network is