Mitsubishi Electric QAHV-N560YA-HPB Service Handbook page 130

[ IX Troubleshooting ]
2. Operation status before error
Setting procedure
Step 1
Set the dip switches
SW2 and SW3.
Step 2
Select the desired
item with the push
switch SWP3.
Step 3
Press the push
switches SWP1 (↑) or
SWP2 (↓) to increase
or decrease the value.
Step 4
Press the push switch
SWP3 to save the
change.
HWE1517A
Set the dip switches on the circuit board as follows to view the operation status before
error.
SW2
10 5 6 7
ON OFF OFF OFF
Press the push switch SWP3 to toggle through the item codes listed below.
Select an item code, and press either of the push switches SWP1 or SWP2 to display
the data acquisition time (operation data before error; 0 minute before = error occur-
rence time) and data type. They will appear alternately at one-second intervals.
Every time SWP2 is pressed, the time will go back by one minute, and the time and the
temperature (or pressure) will appear alternately at one-second intervals.
Each time SWP1 is pressed, the time will advance by one minute, and the time and the
temperature (or pressure) will appear alternately at one-second intervals.
The time immediately before the occurrence of error is defined as 0, and the time can
go back up to 19 minutes in one-minute increments.
Up to 20 collections of data can be viewed for each operation data.
Refer to "Time of data storage before error" on the next page for the types of errors that
appear on error history.
Press SWP3 to stop the blinking and return to the item code display.
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SW3
8 9 10
OFF OFF OFF
GB