Fuji Electric FRENIC-AQUA series User Manual page 156

Data format [20]
Communications error
Table 5.35 Communications error codes (common to both protocols)
Code
71 Checksum error, CRC error
72 Parity error
Table 5.36 Communications error codes (for Fuji general-purpose inverter protocol)
Code
74 Format error
75 Command error
76 Link priority error
77 Function code data write right error
Table 5.37 Communications error codes (for RTU protocol)
Code
1 Improper 'FC'
2 Improper address (function code
error)
(Example) In case of an improper address
2 = 0002 Consequently,
H
Data format [21]
Auto tuning
15 14 13 12
0 0 0 0
Not used
When FWD is 1, this data is the forward rotation command. When REV is 1, this data is the
reverse rotation command. However, if both FWD and REV are 1, the command is not
effective. Both FWD and REV are 0 for reading.
(Ex.) When P04 (motor 1 automatic tuning) = 1 (forward rotation),
0000 0001 0000 0001
Data format [22]
Frequency data
Decimal data (positive): Resolution 0.01 Hz
(Ex.) When C05 (multistep frequency 1) = 50.25 Hz
50.25×100 ＝ 5025 ＝ 13A1
Description
⇒ No response
⇒ No response
Description
Description
11 10 9 8
0 0 REV FWD
= 0101 Consequently,
b H
，consequently
H
5-69
5.2 Data Formats
Code Description
73 Framing error, overrun error, buffer
full ⇒ No response
Code Description
78 Function code error
79 Write disabled
80 Data error
81 Error during writing
Code Description
3 Improper data (range error)
7 NAK (link priority, no right, write
disabled)
⇒
7 6 5 4 3
Data part
⇒
⇒
00 02
H H
2 1 0
01 01
H H
13 A1
H H