Goodrive10 Series Mini VFD
Communication protocol
-98-
The parameter data is 0032H, that is, 50, so 5.0 is obtained based on the fieldbus scale
(50/10=5.0). In this case, the master identifies that the "Wake-up-from-sleep delay" is 5.0s.
7.3.6 Error message response
Operation errors may occur in communication-based control. For example, some
parameters can only be read, but a write command is transmitted. In this case, the VFD
returns an error message response. Error message responses are sent from the VFD to the
master. The following table describes the codes and definitions of the error message
responses.
Code
Name
Meaning
01H
Invalid
command
The command code received by the upper computer is not
allowed to be executed. The possible causes are as
follows:
•
The function code is applicable only on new devices and
is not implemented on this device.
•
The slave is in the faulty state when processing this
request.
02H
Invalid data
address.
For the VFD, the data address in the request of the upper
computer is not allowed. In particular, the combination of
the
register
address
and
the
number
of
the
to-be-transmitted bytes is invalid.
03H
Invalid data
value
The received data domain contains a value that is not
allowed. The value indicates the error of the remaining
structure in the combined request.
Note:
It does not mean that the data item submitted for
storage in the register includes a value unexpected by the
program.
04H
Operation
failure
The parameter is set to an invalid value in the write
operation. For example, a function input terminal cannot be
set repeatedly.
05H
Password error
The password entered in the password verification address
is different from that set in P07.00.
06H
Data frame error
The length of the data frame transmitted by the upper
computer is incorrect, or in the RTU format, the value of the
CRC check bit is inconsistent with the CRC value
calculated by the lower computer.
07H
Parameter
read-only
The parameter to be modified in the write operation of the
upper computer is a read-only parameter.
Summary of Contents for GD10-0R2G-2-B
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