Mitsubishi Electric 800 Series Instruction Manual page 371

 Trigger setting (Pr.1025, Pr.1035 to Pr.1037, Pr.1046, Pr.1047)
• Set the trigger generating conditions and the trigger target channels.
Pr.1025
setting
0 Tracing starts when inverter enters a fault status (protective function activated)
1 Tracing starts when analog monitor satisfies trigger conditions
2 Tracing starts when digital monitor satisfies trigger conditions
3 Tracing starts when either of analog or digital monitor satisfies trigger conditions (OR)
4 Tracing starts when both of analog or digital monitor satisfies trigger conditions (AND)
• Set the trigger generation conditions for the analog monitor.
Pr.1036
setting
Sampling starts when the analog data targeted for the trigger exceeds the value specified
0
at the trigger level
Sampling starts when the analog data targeted for the trigger falls below the value specified
1
at the trigger level
*1 In Pr.1037, set the number obtained by adding 1,000 to the trigger level.
• Set the trigger generation conditions for the digital monitor.
Pr.1047
setting
0 Tracing starts when the digital data targeted for the trigger turns ON
1 Tracing starts when the digital data targeted for the trigger turns OFF
 Start of sampling (Pr.1020, Pr.1024)
• Set the trace operation. The trace operation is set in Pr.1020 Trace operation selection.
• When "1" is set in Pr.1020, sampling starts.
• When "2" is set in Pr.1020, it is regarded that a trigger occurs (forced trigger), and the sampling stops and the tracing starts.
• When "3" is set in Pr.1020, sampling stops.
• To start sampling automatically when the power supply at power-ON or at a recovery after an inverter reset, set "1" in
Pr.1024 Sampling auto start.
Pr.1020 setting
0
1
2
3
 Selection of trace operation by input terminal (TRG signal, TRC signal)
• Trace operation can be selected by signal inputs.
• A forced trigger can be applied when the Trace trigger input (TRG) signal is ON.
• Sampling is started and stopped by the Trace sampling start/end (TRC) signal turning ON and OFF, respectively.
• To input the TRG signal, set "46" in any of Pr.178 to Pr.189 (Input terminal function selection), and to input the TRC
signal, set "47" to assign the function to a terminal.
NOTE
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.
 Sampling retry
• If any error is found in the trace data, the sampling stops and then restarts (sampling retry).
• If another error is found within a minute from when an error is found, the sampling stops (sampling retry count excess).
• The sampling retry status can be checked by monitoring the trace status.
370
14. (A) Application Parameters
14.12 Trace function
Trigger generating conditions
Trigger generation conditions
Trigger generation conditions
Operation
Sampling standby
Sampling start
Forced trigger (sampling stop)
Sampling stop
Selection of trigger
target channel
—
Pr.1035
Pr.1046
Pr.1035, Pr.1046
Pr.1035, Pr.1046
Trigger level setting
Set the trigger level from 600 to
*1
1400 (-400% to 400% ) in
Pr.1037.