Mitsubishi Electric 800 Series Instruction Manual page 469

 Selection of trace mode (Pr.1021)
• Select how to save the trace data which results from sampling the inverter status.
• There are two trace data save methods, memory mode and recorder mode.
Pr.1021 Mode
setting
0 Memory mode
1 Memory mode
(automatic
transfer)
2 Recorder mode
*1 For details on Pr.1020, refer to
NOTE
• When the trace function is used in the recorder mode, use a USB memory device having at least 1 GB of free space.
• Data transferred to USB is saved in the "TRC" folder under the "FR_INV" folder.
• Up to 99 sets of trace data can be stored in the USB memory device in the memory mode. When a data set is transferred
to the USB memory that contains 99 sets of data, its "MEM001.tr1" file will be overwritten. REC001.tr1 is the only data file
stored in the recorder mode.
• The data sampled in the recorder mode will be corrupted by resetting or turning OFF the inverter during sampling.
• By using FR Configurator2, the trace data of the internal RAM can be directly transmitted to the personal computer via the
USB cable. For details, refer to the Instruction Manual of FR Configurator2.
 Selection of sampling time (Pr.1022, Pr.1023)
• The sampling time is determined by the sampling cycle and the number of data acquisition points. The number of data
acquisition points differs between the memory mode and the recorder mode.
Memory mode
The sampling time varies depending on the setting in Pr.1022 Sampling cycle and Pr.1023 Number of analog channels.
Pr.1023 Number of analog
channels
1
2
3
4
5
6
7
8
Recorder mode
The sampling time varies depending on the setting in Pr.1023 Number of analog channels.
Analog channel number
Fixed to 8ch (analog source
selection)
*1 Sampling is performed at a sampling cycle of 1 ms even if "0 or 1" is set to Pr.1022 Sampling cycle.
468
5. PARAMETERS
5.11 (A) Application parameters
Description
Trace data is stored sequentially to the internal RAM
in the inverter.
Trace data is stored sequentially to the internal RAM
in the inverter, and automatically transferred to the
USB memory device.
Trace data is stored directly on the USB memory
device. Sampling data is fixed at 8 analog channels
and 8 digital channels. The sampling cycle in this
mode is longer than in the memory mode. (1 ms or
longer)
page 471.
Memory mode sampling time
Minimum (Pr.1022 = "0")
213 ms
160 ms
128 ms
106.5 ms
91 ms
80 ms
71 ms
64 ms
Recorder mode sampling time
*1
Minimum (Pr.1022 = "2")
Approx. 14 hours
To store trace data on a USB memory device, set
Pr.1020 Trace operation selection = "4" after the
sampling and tracing is completed.
Trace data is automatically stored on the USB
memory device after tracing is completed.
To stop sampling and complete storing trace data
after the sampling is started, set "2" (forced trigger)
or "3" (sampling stop) in Pr.1020 Trace operation
selection.
Maximum (Pr.1022 = "9")
1704 s
1280 s
1024 s
852 s
728 s
640 s
568 s
512 s
Maximum (Pr.1022 = "9")
Approx. 621 days
Storing trace data
*1
Number of data
acquisition points
1704
1280
1024
852
728
640
568
512
Number of data
acquisition points
53687091