Mitsubishi Electric RD77MS16, Руководство пользователя

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9 COMMON FUNCTIONS
9.9 Mark Detection Function
Operation for mark detection function
Operations done at mark detection are shown below.
• Calculations for the mark detection data are estimated at leading edge/trailing edge of the mark detection signal. However,
when the specified number of detections mode is set, the current number of mark detection is checked, and then it is
judged whether to execute the mark detection.
• When a mark detection data range is set, it is first confirmed whether the mark detection data is within the range or not.
Data outside the range are not detected.
• The mark detection data is stored in the mark detection data storage area according to the mark detection mode, and then
the number of mark detection is updated.
■
Continuous detection mode
Item Performance specifications
RD77MS2 RD77MS4 RD77MS8 RD77MS16
Number of mark detection
settings Up to 16
Input signal External input signal (DI1 to
DI10)
External input signal (DI1 to DI20)
Input signal detection
direction
Selectable for leading edge or trailing edge in logic setting of external input signal
Input signal compensation
time Correctable within the range of -32768 to 32767

s
Detection accuracy 10

s
Latch data 11 types + Optional buffer memory data (2 words)
(Current feed value, Machine feed value, Real current value, Servo input axis current value, Synchronous encoder axis current
value, Synchronous encoder axis current value per cycle, Current value after composite main shaft gear, Current value per
cycle after main shaft gear, Current value per cycle after auxiliary shaft gear, Cam axis current value per cycle, Cam axis
current value per cycle (real position) )
Number of continuous latch
data storage
Up to 32
Latched data range Settable in the range of -2147483648 to 2147483647
Mark detection signal
(Leading edge detection setting)
**
0 1 2
Detected real current value
Real current value
(Continuous update)
Detected real current value
Mark detection data value
Confirmation of mark detection data range
(Upper/lower limit value setting: Valid)
Data outside range are not latched.
[Md.800] Number of mark detection
[Md.801] Mark detection data storage area
(1 to 32)
"0" clear by setting "1" in "[Cd.800] Number of mark detection clear request".
[Pr.42] External command function selection
0 1 [Cd.8] External command valid
4: High speed input request
Set "1" before mark detection start.