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358
Communication operation and setting
Faults history
Fault code list
(7) Pr. 343 Communication error count
You can check the cumulative number of communication errors.
(8) Output signal LF "alarm output (communication error warnings)"
During a communication error, the alarm signal (LF signal) is output by open collector output. Assign the used
terminal using any of Pr. 190 to Pr. 196 (output terminal function selection).
Register Definition Read/Write Remarks
40501 Fault history 1 Read/write
Being 2 bytes in length, the data is stored as
"H00". Refer to the lowest 1 byte for the fault
code.
Performing write using the register 40501 batch-
clears the faults history. Set any value as data.
40502 Fault history 2 Read
40503 Fault history 3 Read
40504 Fault history 4 Read
40505 Fault history 5 Read
40506 Fault history 6 Read
40507 Fault history 7 Read
40508 Fault history 8 Read
Parameters Setting Range Minimum Setting Range Initial Value
343 (Read only) 1 0
CAUTION
The number of communication errors is temporarily stored into the RAM. As it is not stored into the EEPROM, performing
a power supply reset or inverter reset clears the value to 0.
CAUTION
The LF signal can be assigned to the output terminal using any of Pr. 190 to Pr. 196. When terminal assignment is changed, the
other functions may be affected. Set parameters after confirming the function of each terminal.
* Refer to page 403 for details of fault description.
Data
Description
H00 No alarm
H10 E.OC1
H11 E.OC2
H12 E.OC3
H20 E.OV1
H21 E.OV2
H22 E.OV3
H30 E.THT
H31 E.THM
H40 E.FIN
H50 E.IPF
H51 E.UVT
H52 E.ILF
H60 E.OLT
H70 E.BE
H80 E.GF
H81 E.LF
H90 E.OHT
H91 E.PTC
HA0 E.OPT
HA3 E.OP3
HB0 E.PE
HB1 E.PUE
HB2 E.RET
HB3 E.PE2
HC0 E.CPU
HC1 E.CTE
HC2 E.P24
Data
Description
HC4 E.CDO
HC5 E.IOH
HC6 E.SER
HC7 E.AIE
HC8 E.USB
HD0 E.OS
HD1 E.OSD
HD2 E.ECT
HD3 E.OD
HD5 E.MB1
HD6 E.MB2
HD7 E.MB3
HD8 E.MB4
HD9 E.MB5
Data
Description
HDA E.MB6
HDB E.MB7
HDC E.EP
HF1 E.1
HF2 E.2
HF3 E.3
HF6 E.6
HF7 E.7
HFB E.11
HFD E.13
Data
Description
Alarm data
Reply data
Master
Slave
0
Signal LF
Normal dataAlarm data Alarm data
12
OFF
ON
OFF OFF
ON
Not increased
Turns off when normal data is received
Alarm data :
Normal data
Reply data
Communication error count is increased in
synchronization with leading edge of LF signal
Data resulting in
communication error.
Communication
Error count
(Pr. 343)