3.4 Programming Mode
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The following are restrictions and special notes concerning “Data Copying.”
■ If unable to copy
Check whether the “err” or “diff” display is blinking.
(1) When the “err” display is blinking (write error), the following causes are conceivable.
∙ No data has been saved to the keypad memory. (If data has not been read even once since the product was
shipped, or was canceled while data was being read)
∙ There is a problem with the data saved to the keypad memory.
∙ The inverter model is different.
∙ Data was written while the inverter was running.
∙ Inverter data is protected (function code F00 = 1).
∙ The permit editing command WE-KP is OFF.
∙ Data reading was attempted when data protection was enabled.
(2) When the “diff” display is blinking, the following cause is conceivable.
∙ If the inverter type is the same:
When writing data from a new ROM version to an inverter with an old ROM version, “
diff
” appears if there
is no data compatibility. (This error does not occur if writing data from an old ROM version to an inverter with
a new ROM version.) Copying can be continued by pressing the key. In this case, data is not copied to
added function codes by upgrading, but compatibility is retained and data is copied to existing function codes.
∙ If the inverter type differs for special specification products, etc.
Data with no compatibility will be copied, and therefore data copying should not be performed.