Collecting Operation Data - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[9-2 Operation Data Collection and Storage Functions ]
9-2-3

Collecting Operation Data

This function is used to collect the operation data of the outdoor and indoor units via M-NET, and record the data in the flash
memory on the control board. When the memory is full, it is overwritten from the first segment.
The settings for checking the status of operation data collection and for starting/ending data collection are made using the
switches provided on the control board. The items to be set are shown in the table below. The data collection setting is en-
abled by default.
Switch
SW6-10 SW4 (0: OFF, 1: ON)
OFF NO.28
ON NO.817
*When setting the switch SW4 on the control board, make sure the outdoor unit is energized.
Also use Section [5-1 Dipswitch Functions and Factory Settings] as a reference.
The procedure for starting and ending the collection of operation data is shown below.
1. Operation procedure
(1) Status Confirmation
1) Confirm the current status of operation data collection by setting the switches on the control board following the table shown
above.
Switch setting: SW6-10: OFF
SW4: 28
Check the status on the maintenance LED display (LED301).
* For details, refer to Section [9-4-1 Maintenance LED Display Content List]
When "ON" or "OFF" is displayed, go to step (2) and the later steps.
When "Err" is displayed, go to step (3) and the later steps.
When "F-Er" is displayed, it indicates an error in the flash memory on the control board.
Refer to Section [9-4-2 Troubleshooting]
(2) Setting Start and End of data collection
1) Set the switches on the control board by following the table shown above.
Switch setting: SW6-10: ON
SW4: 817
2) Press SWP3 (ENTER).With each switch operation, the setting can be alternately switched ON and OFF.
3) After conducting step (1), check that the operating condition is stable.
Data collection start: OFF (Enabled)
Data collection end: ON (Disabled)
Setting procedure is now complete.
(3) Restarting data collection
1) If "Err" is shown, it indicates that data collection is being suspended for some reason, even though data collection is enabled.
To restart, it is necessary to set the switches on the control board. After making settings by following steps (2) - 1) and 2),
check that the settings have been set as described in step (1).
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Function
Data being col-
00111000000
lected
Data collection
10001100110
enabled
Operation set by the switch
OFF ON
(LED3 OFF) (LED3 ON)
- -
Enabled Disabled
Timing for
Unit for
switch
setting
operation
Anytime
OC setting
after
necessary
power-on
Anytime
OC setting
after
necessary
power-on
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