4-161
4-4 Communication Function
4
Func
tions
<Abnormal Response>
Field Configuration
• If an error (aside from a communication error) is found in the query content, the Inverter returns
exception responses without performing any operation.
• To determine the cause of an error, check the function code of the response. The function code of
the exception response is the value of the query function code to which 80h is added.
• Check the details of the error with the exception code.
Exception code
<No Response>
The Inverter ignores the query and does not respond if:
• The broadcast is received.
• A communication error is detected in receiving a query.
• The query slave address does not correspond with the slave address set for the Inverter.
• The time interval between 2 pieces of data that configure the message is less than a 3.5-character
length.
• Query data length is inappropriate.
Note: If the timer is set in the master to monitor response, but no response is returned within the set
time period, send the same query again.
Slave address
Function code
Exception code
CRC-16
Code
Description
01h
An unsupported function has been specified.
02h
Specified address does not exist.
03h
Specified data has an unacceptable format.
21h
Data is out of the Inverter's range for writing into the holding register.
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)
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
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Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
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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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