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4-168
4-4 Communication Function
4
Functions
The detailed field configuration is shown below. The function code of the exception response is the
value of the query function code to which 80h is added. The exception code shows the cause of
exception response.
Saving 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 Inverter's memory element. 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 memory element, the "Enter
Command" must be issued according to the following procedure.
When the control parameters are changed, the motor parameters must be re-calculated. In this
case, perform recalculation with this register.
To issue the Enter command
Write all memory data into the holding register with the write command (06h), and write re-
calculated motor parameters into holding register 0900h. Below are the values to be written into the
holding register.
Note
• 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 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
An unsupported function has been specified.
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.
• Has attempted to change the register that 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 read-only register (coil).
10h
90h
Set value
Description
0000
Motor parameter recalculation
0001
Set value storage
Other than the above
Motor parameter recalculation and set value storage
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
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Page 437: ...Index ...
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