Mitsubishi Electric FR-A820-00046 Instruction Manual page 354

Position control under vector control and PM sensorless vector control
The pulse monitor of the operation panel (FR-DU08)
● The position command, current position and the status of droop pulses can be displayed on the
operation panel.
● If displayed data has signs, minus signs appear for both upper and lower digits.
● If –99999999 or 99999999 is exceeded on the pulse monitor, the monitor value is reset to 0.
–10000
–100
Tab. 5-64:
NOTE The pulse count starts at servo on.
Cumulative pulse monitor
● When the plug-in option (FR-A8AP) or the control terminal option (FR-A8TP) is used, the accumu-
lated value of the encoder pulses can be monitored.
● The cumulative pulse monitor is available when "71 to 74" is set in the monitor selection param-
eters (Pr.52, Pr.774, Pr.775, Pr.776, and Pr.992).
Types of Monitor
Cumulative pulse
Cumulative pulse
overflow value
Cumulative pulse
(control terminal option)
Cumulative pulse
carrying overflow times
(control terminal option)
Tab. 5-65:
Negative values are not displayed on the operation panel. The values "-1 to -32767" are displayed
as "65535 to 32769" on the operation panel.
5 - 174
Display data
Lower monitor
Upper monitor
Lower monitor
Upper monitor
Pulse monitor
Pr. 52,
Pr. 774 to Pr. 776,
Pr. 992
71
72
73
74
Cumulative pulse monitor
Monitor display without signs
Display with
Description
minus sign
The cumulative number of pulses is displayed
(monitor range: -32767 to 32767) (for FR-A8AP).
The number of the cumulative pulse carrying
overflow times is displayed (for FR-A8AP).
The cumulative number of pulses is displayed
(monitor range: -32767 to 32767) (for FR-A8TP).
The number of the cumulative pulse carrying
overflow times is displayed (for FR-A8TP).
Parameters
Monitor display with signs