4-76
4-2 Function Mode
4
Functions
To Save the Change to the Holding Register (enter command)
Even if using the command to write into the holding register (06h) or into the consecutive holding
registers (10h), no change can be saved in the EEPROM memory element of the Inverter. If the
Inverter power shuts off without saving any changes, the holding register returns to the status before
the changes were made. To save the holding register changes in the Inverter's EEPROM memory
element, the "enter command" must be issued according to the following procedure.
To issue the enter command
Write into all memory write (holding register number 0900h) using the writing command into the
holding register (06h). In this case, a random value can be written into the holding register (0900h).
Notes:
•The enter command needs considerable time. Monitor the data writing signal (coil number 001Ah)
to check whether the data is being written.
•Since the Inverter's EEPROM memory element has a limit on the number of rewrites (approx.
100,000 times), the Inverter life may be shortened if enter commands are frequently used.
Function code Exception code
Query
Exception
response
Code Description
01h 81h 01h Specified an unsupported function.
03h 83h 02h Specified address does not exist.
05h 85h 03h Specified data has an unacceptable format.
06h 86h 21h
Data is out of the Inverter's range for writing into the holding
register.
0Fh 8Fh
22h
The Inverter does not allow this function.
• Attempted to change the register which cannot be changed
during operation.
• Has issued the enter command during operation (UV).
• Has written into the register during trip (UV).
• Has written into the register used exclusively for reading.
10h 90h
23h Has written into the register (coil) used exclusively for reading.
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