Mitsubishi Electric 800 Series Instruction Manual page 368

Pr. Name
1038
Digital source selection (1ch)
A930
1039
Digital source selection (2ch)
A931
1040
Digital source selection (3ch)
A932
1041
Digital source selection (4ch)
A933
1042
Digital source selection (5ch)
A934
1043
Digital source selection (6ch)
A935
1044
Digital source selection (7ch)
A936
1045
Digital source selection (8ch)
A937
1046
Digital trigger channel
A938
1047 Digital trigger operation
A939 selection
*1 The setting range differs depending on the model. For more information, refer to the monitor item list.
 Operation outline
• This function is used to sample the status data (analog monitor and digital monitor) of the inverter, trace the sampling data
when a trigger (trace start condition) occurs, and stores 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 a trigger occurs in the trigger standby status, tracing is started and the trace data is stored.
Sampling start
Sampling data
0%
Sampling start
Sampling data
0%
Sampling start
Sampling data
 Tracing procedure
1.
Prior setting for tracing
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.
Initial value Setting range
0
0
0
0
0 to 255
0
0
0
0
1 1 to 8
0
0
1
If the data is short for the pre-trigger sampling,
the inverter goes into the pre-trigger state.
Pre-trigger sampling number
Data in the period
is discarded.
Data in the period
is discarded.
Trace start
0%
Description
Select the digital data (I/O signal) for sampling on each
channel.
Select the digital channel to be the trigger.
Tracing starts when the signal turns ON
Tracing starts when the signal turns OFF
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.
A trigger occurs
100%
Trace completed
90% 100%
14. (A) Application Parameters
14.12 Trace function
11
12
13
14
15
16
17
18
19
20
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