Troubleshooting - Mitsubishi AE-200A Instruction Book

9. Troubleshooting

See the table below and troubleshoot accordingly.
No.
Errors are displayed
on the [Malfunction]
screen under the
(1)
[Status List] menu
on the AE-200's
LCD.
Or,
Error log is
displayed on the
[Unit Error] screen
under the [Log]
menu on the
AE-200's LCD.
(2)
(3)
(4)
WT07627X03
Problem
"Version combination error
(0092)"
"Warning - possibility of
damaged metering device
(0095)"
"Communication error - No
response error (6920)"
"System abnormality -
Attribute setting error
(7106)"
Possible cause
The versions of the
AE-200/AE-50/EW-50 do
not match.
The measurement value
of the metering device
(which should count up the
operation amount of air-
conditioning units) does
not count up for 3 to 7
days.
* Whether to warn (3 to 7 days
before the warning is issued)
or not to warn can be set.
When "Not warn" is set,
errors cannot be detected.
The communication
between AE-200 and
AE-50/EW-50 is not
properly established.
1) In the group of units
such as PI controllers,
chiller units, or HWHP
(QAHV) units, an
address with attribute
for different type of units
(such as air conditioning
units) exists.
2) The address of the
unit to be interlocked
set in the [Interlocked
LOSSNAY] screen is not
an address of LOSSNAY
unit.
3) The attribute setting (IC/
FU) for OA processing
unit is not correct.
188
Solution
• Check the versions of the AE-200
and AE-50/EW-50.
Refer to the Instruction Book
(Apportioned Electricity Billing
Function) for details.
• Check if the measurement value
is properly counted up on the
[Measurement] screen under the
[Monitor/Operation] menu.
When an electricity meter with
large pulse value is used, the error
message may appear even if the
wiring connection is correct.
• Check for proper connection
between the electricity meter
and the PI controller (when a PI
controller is used).
• Check for proper connection
between the electricity meter
and the built-in Pulse Input (PI)
on the AE-50/EW-50 (when a
built-in Pulse Input (PI) on the
AE-50/EW-50 is used).
• Check if no communication error
between the PI controller and the
AE-50/EW-50 is occurring.
• Check if the destination IP address
is properly entered.
• Check for proper connection
between the AE-200 and
AE-50/EW-50.
Cause 1)
Configure the groups so that all
addresses in each group have
the same attribute (such as PI
controllers, chiller units, or HWHP
(QAHV) units).
Cause 2)
Correct or delete the address of
the unit to be interlocked set in the
[Interlocked LOSSNAY] screen.
Cause 3)
Switch the attribute using a
dipswitch. Refer to the installation
manual of the OA processing unit
for details.