Mitsubishi Electric FR-A820-00046 Instruction Manual page 356

Position control under vector control and PM sensorless vector control
Cumulative pulse storage
● The cumulative pulse monitor value can be retained when the power is turned OFF or the inverter
is reset.
Pr. 638
0
1
2
3
Tab. 5-67:
NOTES When the power is turned OFF during the reset process, the cumulative pulse monitor value and
the cumulative pulse carrying overflow times are not stored in the EEPROM.
For storing the cumulative pulse monitor value and the cumulative pulse overflow times, in the
EEPROM at power OFF, connect R1/L11 with P/+, and S1/L21 with N/- so that the control power is
retained. When connecting the high power factor converter (FR-HC2) or the converter unit
(FR-CC2), assign the instantaneous power failure detection (X11) signal to an input terminal to
input the IPF signal from the FR-HC2/FR-CC2 to the terminal for X11 signal.
Parameters referred to
Pr. 52
5 - 176
Cumulative pulse monitor
At power-OFF
Not stored in the EEPROM
Stored in the EEPROM
Not stored in the EEPROM
Stored in the EEPROM
Pr. 638 settings
Operation panel main monitor selection
Cumulative pulse monitor
(control terminal option)
At reset At power-OFF
Cleared Not stored in the EEPROM
Retained Not stored in the EEPROM
Cleared Stored in the EEPROM
Retained Stored in the EEPROM
Parameters
At reset
Cleared
Cleared
Retained
Retained
=> page 5-327