Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 309

• If -99999999 or 99999999 is exceeded on the pulse monitor, the monitor value is reset to 0.
Display data
Lower monitor
-10000
Upper monitor
Lower monitor
-100
Upper monitor
NOTE
• The pulse count starts at servo on.
 Cumulative pulse monitoring
• When the Vector control compatible plug-in option or the control terminal option (FR-A8TP) is used, the accumulated value
of the encoder pulses can be monitored.
• The cumulative pulse monitor is available when "71 to 74" is set in the monitor selection parameters (Pr.52, Pr.774, Pr.775,
Pr.776, and Pr.992).
Monitor item
Cumulative pulse
Cumulative pulse
overflow times
Cumulative pulse
(Control terminal option)
Cumulative pulse
overflow times
(Control terminal option)
*1 Negative values are not displayed on the operation panel. The values "-1 to -32767" are displayed as "65535 to 32769" on the operation panel.
 Cumulative pulse division scaling factor (Pr.636, Pr.637)
• Set the division scaling factor on the cumulative pulse in Pr.636 or Pr.637.
• Cumulative pulse count value calculation method:
Cumulative pulse count value = Cumulative pulse division scaling factor × (Cumulative pulse overflow times × 32768 +
Cumulative pulse monitor value)
Cumulative pulse count value: Number of pulses multiplied by 4
Cumulative pulse division scaling factor: Pr.636, Pr.637
 Cumulative pulse monitor value clear (Pr.635)
• The cumulative pulse monitor and the cumulative pulse overflow times can be cleared by X52 signal or X53 signal.
• To input the X52 or X53 signal, set "52 (X52)" or "53 (X53)" in any of Pr.178 to Pr.189 (input terminal function selection)
to assign the function to a terminal.
• Use Pr.635 Cumulative pulse division scaling factor to select the clearance method for the cumulative pulse monitor
and the cumulative pulse overflow times.
Pr.635 setting
0 Cleared at the edge when the signal is switched to ON.
1 Cleared while the signal is ON.
2 Cleared at the edge when the signal is switched to ON.
3 Cleared while the signal is ON.
308
5. PARAMETERS
5.5 Position control under vector control and PM sensorless vector control
Monitor display without signs
Pr.52, Pr.774 to Display with
Pr.776, Pr.992 minus sign
*1
71
○
*1
72
○
*1
73
○
*1
74
○
X52 signal
Cumulative pulse monitor value clear
Monitor display with signs
The cumulative number of pulses is displayed (monitor range: -32767 to
32767)
(for Vector control compatible plug-in options)
The number of the cumulative pulse overflow times is displayed
(for Vector control compatible plug-in options)
The cumulative number of pulses is displayed (monitor range: -32767 to
32767)
(for FR-A8TP)
The number of the cumulative pulse overflow times is displayed (for FR-A8TP).
Cumulative pulse monitor clear (control terminal option)
Cleared at the edge when the signal is switched to ON.
Cleared at the edge when the signal is switched to ON.
Cleared while the signal is ON.
Cleared while the signal is ON.
Description
X53 signal