Mitsubishi Electric 800 Series Instruction Manual page 230

Clearing condition
Servo-OFF (LX-OFF)
×
(output shutoff)
Clear signal input  ○
Home position return
×
completed
When position control is
switched to other control ○
mode
Clear signal input
(When position control is
×
switched to other control
mode)
: Cleared, : Not cleared
○ ×

The droop pulses are not cleared.

The CLR/CLRN signal is input when a value other than "1" is set in Pr.419, and the signal is input through terminal CR of the FR-A8AL when
Pr.419 = "1".

Pulses are cleared when a clear signal is input. (The home position information is not retained.)

Pulses are cleared only when the home position return is completed. Once the pulses are cleared, they are not cleared even if the LX signal is
turned ON.

The data is cleared when absolute position control is disabled.

The home position return is not available.

The following shows the example of the clearing the value of the current position 2 monitor under the control mode other than the position
control mode.
MC ON
STF
Monitoring of
current position 2
0
Position
control
Not cleared to 0 at
the control switchover
Pulse monitoring on the operation panel
• 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.
Display data
Lower monitor
-10000
Upper monitor
Lower monitor
-100
Upper monitor
NOTE
• The pulse count starts at servo on.
0 10 100 110
× × ×
○  ○ ○ 
× ○ ○
○ ○ ○
× × ×
OFF ON
ON
Monitor value
updated
Other than position Position
control (speed) control
Not cleared to 0 at
the control switchover
Monitor display without signs
Position control under vector control
Current position 2
Pr.419 setting
1, 2 1110 200
× × ×
○ ×  ○
—  ○ ×
○ ○ × 
× × ○ 
STF ON
CLR OFF
Monitoring of
current position 2
0
Other than position control (speed)
Monitor display with signs
210 300 310 1310
× × × ×
○ ○ ○ ×
× ○ ○ ○
×  ×  ×  ×
○  ○  ○  ○
OFF
ON
Cleared to 0
by turning ON
of the CLR signal
PARAMETERS



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