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8 Communications Functions
8 - 20
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
In a query, the master requests a response, except for broadcast or simultaneous broadcast by group.
Although the inverter normally returns a response to the query, it returns an exception response if the
query has an error.
An exception response has the field configuration shown in the table below.
The details of the field configuration are as shown below. An exception response has a function code,
which is the sum of the function code value of the query and 80 hex. An exception code shows the fac-
tor of the exception response.
* The MSB is 1.
8-5-9
Exception Response
Field configuration
Slave address
Function code
Exception code
Error check
Function code
Query
Exception Response
01 hex
81 hex
03 hex
83 hex
05 hex
85 hex
06 hex
86 hex
0F hex
8F hex
10 hex
90 hex
17 hex
97 hex
Exception code
Description
01 hex
An unsupported function is specified.
02 hex
The specified address does not exist.
03 hex
The specified data is in an unacceptable format.
21 hex
The Write to Holding Register function is specified, but the data is out of
the setting range.
22 hex
The inverter does not allow this function because:
• Function attempts to change a register that cannot be changed during
RUN.
• Function attempts to issue the Enter command during RUN (UV
*1
).
• Function attempts to write data to a register during trip (UV
*1
).
• Function attempts to write data to a register on which the soft lock func-
tion is enabled.
• Function attempts to change an I/O terminal that cannot be changed.
• Function attempts to change the contact type of the terminal to which
the RS (Reset) is allocated.
• Function attempts to write data to a register when the auto-tuning func-
tion is enabled.
• Function attempts to write data to a password-locked register when the
password function is enabled.
*1. UV: Undervoltage
23 hex
Function attempts to write data to a read-only register (coil).
Summary of Contents for SYSDRIVE MX2 SERIES
Page 1: ...Multi function Compact Inverter MX2 Series Type V1 User s Manual I585 E1 01 3G3MX2 A V1 ...
Page 32: ...CONTENTS 29 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 108: ...2 Design 2 48 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 176: ...4 Parameter List 4 42 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 538: ...10 Troubleshooting 10 22 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 598: ...12 Options 12 50 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 614: ...Appendices A 16 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 615: ...I 1 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 I Index ...