Mitsubishi Electric FR-F720-0.75K to 110K Instruction Manual page 228

Faults history
Register
40501 Fault history 1
40502 Fault history 2
40503 Fault history 3
40504 Fault history 4
40505 Fault history 5
40506 Fault history 6
40507 Fault history 7
40508 Fault history 8
Data Description
H00 No fault
H10 OC1
H11 OC2
H12 OC3
H20 OV1
H21 OV2
H22 OV3
H30 THT
H31 THM
H40 FIN
H50 IPF
H51 UVT
(7) Pr. 343 Communication error count
You can check the cumulative number of communication errors.
Parameters
343
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.
(8) Output signal LF "alarm output (communication error warnings)"
During a communication error, the alarm signal (LF signal) is output by open collector output. The LF signal
can be assigned to the output terminal using any of Pr. 190 to Pr. 196 (output terminal function selection).
Master
Alarm data
Slave
Communication
Error count
(Pr.343)
OFF
Signal LF
CAUTION
Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions. Make
setting after confirming the function of each terminal.
Definition
Fault code list
Data Description
H52 ILF
H60 OLT
H70 BE
H80 GF
H81 LF
H90 OHT
H91 PTC
HA0 OPT
HA1 OP1
HB0 PE
HB1 PUE
HB2 RET
Setting Range
(Read only)
Alarm data Normal data
Not increased
0
ON
Communication error count is increased in
synchronization with leading edge of LF signal
Communication operation and setting
Read/Write
Read/write
Read
Being 2 bytes in length, the data is stored as
Read
"H00 ". Refer to the lowest 1 byte for the fault
Read
code.
Read
Performing write using the register 40501 batch-
Read
clears the faults history. Set any value as data.
Read
Read
Data Description Data
HB3 PE2 HF7
HC0 CPU HFD
HC1 CTE
HC2 P24
HC4 CDO
HC5 IOH
HC6 SER
HC7 AIE
HE6 PID
HF1 E.1
HF5 E.5
HF6 E.6
Minimum Setting Range
1
Alarm data
Reply data
1
OFF
Turns off when normal data is received
Alarm data :
Remarks
Description
E.7
E.13
Initial Value
0
Normal data
Reply data
2
OFF
ON
Data resulting in
communication error.
4
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