VFD68 Variable Frequency Drives
106
P.343 Communication Error Count
You can check the cumulative number of communication errors.
Note:
The number of communication errors is temporarily stored in RAM. It is not stored in EEPROM, so
performing a power supply reset or a VFD reset clears the value to 0.
Output Terminal LF: Alarm Output (Communication Error Warnings)
During a communication error, the alarm signal (LF signal) is output by the open collector output. Assign the
used terminal using P.190, P.192, or P.197 (output terminal function selection).
Note:
The LF signal can be assigned to the output terminal using P.190, P.192, or P.197. Changing the
terminal assignment may affect the other functions. Make the setting after confirming the function of
each terminal.
H22
E.OV3
H90
E.OHT
HC9
E.SAF
H30
E.THT
H91
E.PTC
HF5
E.5
Table 129: P.343 Communication Error Count
Parameter
Setting Range
Minimum Setting
Range
Initial Value
P.343
(Reading Only)
1
0
Table 128: Faults Code List
Data
Definition
Data
Definition
Data
Definition
OFF
2
Normal Data
ON
Alarm Data
OFF
Reply Data
Reply Data
1
Normal Data
ON
OFF
Alarm Data
Alarm Data
0
Master
Slave
Communication
Error Count
(P.343)
LF Signal
Communication error count
increases in synchronization
with the leading edge of the LF signal.
Turns OFF when
normal data is received.
Alarm data: data that results
in a communication error
Not Increased
Figure 58: Alarm Output (Communication Error Warnings)
