Mitsubishi Electric 800 Series Instruction Manual page 536

Operation outline
• This function samples the status (analog monitor and digital monitor) of the inverter, traces the sampling data when a
trigger (trace start condition) is generated, and saves the resulting trace data.
• When the trace function is set enabled, samplings are collected and the inverter goes into the pre-trigger status.
• In the pre-trigger status, samples are collected, and the trigger standby status is entered when sufficient samples for the
number of pre-trigger samples have been collected.
• When the trigger is generated in the trigger standby status, the trace is started and the trace data is saved.
Sampling start
Sampling data
0%
Sampling start
Sampling data
Sampling start
Sampling data
Tracing procedure
1
Preparing a USB memory device
Select a USB memory device with ample capacity to store the necessary amount of trace data. When the trace
function is used in the recorder mode, use a USB memory device with at least 1 GB of free space.
2
Prior setting for tracing
Set Pr.1021 to select a trace mode.
Set Pr.1022 Sampling cycle and Pr.1023 Number of analog channels according to the necessary sampling
time.
Use Pr.1027 to Pr.1034 to set analog sources, and Pr.1038 to Pr.1045 to set digital sources.
Set a trigger type in Pr.1025.
3
Tracing
Set Pr.1020 or Pr.1024 to start sampling or store trace data in the USB memory device.
The trace status can be monitored. (Refer to
4
Waveform check
By using FR Configurator2, trace data stored in a USB memory device can be displayed on a computer screen.
For details, refer to the Instruction Manual of FR Configurator2.
If the data is short for the pre-trigger sampling,
the inverter goes into the pre-trigger state.
Data in the period
is discarded.
0%
Data in the period
is discarded.
Trace start
0%
Pre-trigger sampling number
90%
Once the enough data is collected for trigger sampling,
the inverter goes into the trigger-ready state.
Pre-trigger sampling number
90%
At trigger generation, samples equivalent to the 100%
pre-trigger sampling number are collected and saved.
page 540.)
(A) Application parameters
100%
A trigger occurs Trace completed
90% 100%
PARAMETERS
5
GROUP
A
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