Mitsubishi Electric FR-F820-00077 Instruction Manual page 623

Parameters
Monitoring the trace status
● The trace status can be monitored on the operation panel by setting "38" in Pr. 52 "Operation panel
main monitor selection", Pr. 774 to Pr. 776 (Operation panel monitor selection), or Pr. 992 "Opera-
tion panel setting dial push monitor selection".
Fig. 5-221:
Monitor value
0 or no display
Tab. 5-222: Trace status
The "0(s)" to the left of the leftmost non-zero digit is (are) not shown in the monitor display.
For example, if no trace data is in internal RAM, the USB memory is not accessed, no trigger is
detected, and the trace operation is performed, "1" appears (not "0001").
● When copying the traced data to a USB memory device, the operating status of the USB host can
be checked with the inverter LED. For the overview of the USB communication function, refer to
page 2-68.
LED status
OFF
ON
Flickering rapidly
Flickering slowly
Tab. 5-223: Operating status of the USB host
● During trace operation, the trace status signal (Y40) can be output.
To use the Y40 signal, set "40 (positive logic) or 140 (negative logic)" in any of Pr. 190 to Pr. 196
(output terminal function selection) to assign the function to the output terminal.
NOTE Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection)
may affect the other functions. Set parameters after confirming the function of each terminal.
Parameters referred to
Pr. 52
Pr. 178 to Pr. 189
FR-F800
Indicates internal RAM state.
Indicates USB memory access state.
Monitoring the trace status
1000s place
No trace data in
internal RAM
Trace data in internal
1
RAM
2 —
3 —
Operating status
No USB connection.
The communication is established between the inverter and the USB device.
Traced data is being transmitted. (In the memory mode, transmission command is being issued. In
the recorder mode, sampling is being performed.)
Error in the USB connection.
Operation panel main monitor selection
(input terminal function selection)
1000 s place
1s place
Indicates trace operation.
100 s place 10 s place
Indicates trigger state.
Trace status
100s place 10s place
USB memory not
Trigger not detected
accessed
USB memory being
Trigger detected
accessed
USB memory transfer
—
error
USB buffer overrun —
(A) Application parameters
I002725E
1s place
Trace stopped
Trace operation
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=> page 5-285
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