Appendix

13. Function Code List
Type [34]: Communication error codes
15 8 7 0
Description of alarms in the communication through the link (RS-485, T-Link, field bus). The
following data is set to the monitor data M26 according to the communication status. The codes
listed in the column "KEYPAD panel display" is displayed on the KEYPAD panel as a
communication error .
Code
KEYPAD panel
display
Communication error name Description
0 - No communication error 1 Normal communication
2 A data is written to an unused address of the function code (writing
to address out of the specified range is defined separately).
3 Data is read from missing function code address in the middle of
continuous read. The data will be "0000".
4 Writing to the S area while link operation is disabled. The data will
not be reflected and cause no error.
5 A data out of range is written to the S area. The data is written after
adjusted to the upper or the lower limit.
6 Access from another link or the KEYPAD panel occurs during data
writing (EEPROM other than the S area is accessed).
7 Writing to operation data (such as tuning or initialization) during
multiple function codes are being written once through the link. The
inverter decides that the procedure is canceled and continues the
writing.
8 Writing to/reading from option function codes that are not displayed
on the KEYPAD panel.
9 Writing/reading a special function code for the lifting machine in the
standard mode
10 Writing/reading a function code for the standard mode in the lifting
machine mode
1 to 32 - Alarm codes specific to the
VG7S
Alarm codes specific to models other than communication errors.
33 to 70 - Not used
71 04 Checksum error, CRC error Software error Checksum value or CRC value does not
match.
72 05 Parity error Hardware error Parity does not match.
73 06 Others (such as overrun,
framing)
Physical (reception) errors other than above.
74 01 Format error Incorrect format.
75 01 Command error
Characters requesting transmission are incorrect. Characters
terminating transmission are not in the specified order.
Codes other than the specified commands are transmitted.
76 07 Link priority error 1 Writing to the S area through RS485 while a link option is installed.
2 Writing to the S area through a link with lower priority while multiple
link options are installed.
77 07 No right to write function
code data
Not used for VG7S
78 02 Function code error 1 Access to a data out of the address range of the function codes
(such as access to a data over F80).
2 Writing data over 16 words.
79 07 Error on writing to writedisabled
data
1 Write-disabled function codes (Read-only data or the M area).
2 Function codes write-disabled during operation.
3 Writing through the link to data out of the S area in "write-disabled
through link" mode. Note that F00 or "Write enable for KEYPAD"
cannot protect from writing through the link.
4 Function codes that cannot be written through the link (link function
codes: H31 to 40).
5 Writing to M1 function code (P) area when motor parameters are
protected.
6 Writing through the link in the copy mode operation of the KEYPAD
panel.
80 03 Data error Written data is out of the setting range in the area other than the S
area.
81 07 Error during writing Another writing request comes from the same source while writing
function code data (EEPROM other than the S area is accessed).
Note: The alarm codes 1 to 32 constitute a code system specific to the VG7S different from the
assignment for the general-purpose inverters.
The communication error codes 71 to 81 are common to the different models. Note that some
causes of alarm are specific to models.
The KEYPAD panel does not display raw communication error codes but the values in the
"KEYPAD panel display" column in the table above.
The KEYPAD panel displays "∗∗" when it receives data that does not have a corresponding
"KEYPAD panel display" in the table above.
13-33