Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 625

 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 Operation panel setting dial push
monitor selection.
The content depends on the digits on the operation panel.
Monitor value
*1
0 or no display
1
2
3
*1 The value(s) "0" to the left of the leftmost non-zero value 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.
Refer to page page 84
LED display status
OFF
ON
Blinking rapidly
Blinking slowly
• During trace operation, the Trace status (Y40) signal can be output.
To use the Y40 signal, set "40 (positive logic) or 140 (negative logic)" in one of Pr.190 to Pr.196 (Output terminal function
selection) to assign function to an 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 Operation panel main monitor
Pr.178 to Pr.189 (Input terminal function
Pr.190 to Pr.196 (Output terminal function
624
5. PARAMETERS
5.14 (A) Application parameters
1000s place
Indicates internal RAM state.
100s place
Indicates USB memory access state.
Fourth digit
No trace data in internal RAM
Trace data in internal RAM
—
—
for an outline of the USB communication function.
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.
selectionpage 424
selection)page 496
selection)page 450
1s place
Indicates trace operation.
10s place
Indicates trigger state.
Trace status
Third digit
USB memory not accessed Trigger not detected
USB memory being
Trigger detected
accessed
USB memory transfer error —
USB buffer overrun —
Operating status
Second digit First digit
Trace stopped
Trace operation
—
—