Parameters
(H) Protective function parameter
FR-A800
5 - 335
Automatic measurement of the load characteristics reference
(Load characteristics measurement mode) (Pr. 1480)
●
Setting Pr. 1480 "Load characteristics measurement mode" = "1" enables automatic measurement
of the load characteristics reference. (Load characteristics measurement mode)
●
Use Pr. 1486 and Pr. 1487 to set the frequency band for the measurement, and set Pr. 1480 = "1".
After setting, when the inverter is started, the measurement starts.
●
The automatically measured load characteristics reference is written in Pr. 1481 to Pr. 1485.
●
After the measurement is started, read Pr. 1480 to display the status of the measurement. If "8"
appears in the tens place, the measurement has not properly completed.
●
While measuring automatically, the During load characteristics measurement signal (Y213) is
output. For the Y213 signal, assign the function by setting "213 (positive logic)" or "313 (negative
logic)" in any of Pr. 190 to Pr. 196 (output terminal function selection).
●
Setting "8888" in Pr. 1481 to Pr. 1485 enables fine adjustment of load characteristics. When setting
Pr. 1481 to Pr. 1485 = "8888" during operation, the load status at that point is set in the parameter.
(Only when the set frequency is within ±2 Hz of the frequency of the measurement point, and SU
signal is in the ON state).
NOTES
Perform measurement under actual environment with the motor connected.
Set the Pr. 1487 "Load characteristics minimum frequency" higher than the Pr. 13 "Starting fre-
quency".
Read value of Pr. 1480
Status
Tens place
Ones place
—
1
During measurement from the starting point to Point 1
—
2
During measurement from Point 1 to Point 2
—
3
During measurement from Point 2 to Point 3
—
4
During measurement from Point 3 to Point 4
—
5
During measurement from Point 4 to Point 5
—
0
Normal completion
8
1 to 5
Termination of measurement by an activation of a protective function, inverter
reset, turning ON of MRS signal, turning OFF of the start command, or timeout.
(The value in the ones place represents the above-mentioned measurement
point.)
Tab. 5-127:
Display of the status of the measurement (Pr. 1480)
Summary of Contents for FR-A820-00046 (0.4K)
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Page 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Page 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 1090: ...Check first when you have a trouble Protective functions 6 50 ...
Page 1189: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
Page 1190: ...EC Declarations of Conformity Appendix A 50 ...
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