Mitsubishi Electric Lossnay LGH-50RVS-E Handbook page 27

[3] System controller
No. Problem
1 The group of
Lossnay cannot be
set with the system
controller.
2 Some Lossnay units
in the group do not
operate.
3 The screen display
of the system con-
troller changes by
itself. Even if you
press the buttons,
the screen returns
to the original
screen right away.
[4] When the Wi-Fi interface is connected to the Lossnay unit
No. Problem
1 The Lossnay unit
does not operate
with the MELCloud
application.
(When the Wi-Fi
interface is used)
Factor
The power of the Lossnay unit is
not ON.
M-NET transmission cable is con-
nected to the remote controller
terminal block (TM4 [1] [2]).
Lossnay address setting is
incorrect.
Power is not supplied to the
M-NET transmission cable.
The wiring length of the M-NET
transmission cable is longer than
specified. (Longer than 200 m
from the power supply unit, or lon-
ger than 500 m in total length)
The power of the Lossnay unit is
not ON.
Faulty connection of the M-NET
transmission cable
The remote controller transmis-
sion cables are not correctly con-
nected between the terminals
(TM4 [1] [2]) of the Lossnay units
in the group.
The Lossnay unit is operating in
the protective mode (intermittent
operation).
Faulty connection of the remote
controller transmission cable
When PZ-62DR-E is used, the
group wiring and the group setting
of the system controller do not
match.
The address of the Lossnay unit,
which is set as the main Lossnay,
is not set to the smallest number
in the group.
Factor
The connection cable for the
Wi-Fi interface is too close to the
power supply cable or the other
communication cables.
The system configuration is not
appropriate.
If the above does not solve the
problem
Check the items described in (1) [1].
Connect the M-NET transmission cable to the
M-NET transmission cable terminal block (TB5
[A] [B]).
Check the address setting switches (SW11 and
SW12) on the Lossnay circuit board.
If the system is configured with only Lossnay
units, connect the power supply unit.
(See the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.)
Check the wiring length of the transmission
cable. (See the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.)
Check the items described in (1) [1].
Check the items described in (1) [2].
Connect the remote controller transmission
cables correctly between the terminals (TM4 [1]
[2]) of the Lossnay units in the group.
For details, see the Lossnay Operating/
Installation Instructions or PZ-62DR-E
Instruction Book.
Check the items described in (1) [2].
Check the group wiring or the group setting of
the system controller.
Lossnay unit with the smallest address number
in the group will be set as the main Lossnay
automatically.
Do not assign the same address number to the
other Lossnay units.
Wire the connection cable for the Wi-Fi interface
at least 5 cm away from the power supply cable
or the other communication cables.
Refer to the notes for the system configura-
tion, for example, on leaflets supplied with the
Lossnay unit.
See Fig. 6-1 Check of Wi-Fi interface.
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Corrective action
Corrective action