Mitsubishi Electric RD77MS2 User Manual page 335

■Specified number of detection mode (Number of detections: 2)
Mark detection signal
(Leading edge detection setting)
Mark detection data value
[Md.801] Mark detection data storage
area (1 to 32) (1st area)
[Md.801] Mark detection data storage
area (1 to 32) (2nd area)
[Md.800] Number of mark detection
[Pr.42] External command function selection
[Cd.8] External command valid
How to use mark detection function
The following shows an example for mark detection by the external command signal (DI2) of axis 2.
The mark detection target is axis 1 real current value, and the all range is detected in continuous detection mode.
• Allocate the input signal (DI2) to the external command signal of axis 2, and set the "high speed input request" for mark
detection.
n: Axis No. - 1
Storage item
[Pr.95] External command signal
selection
[Pr.42] External command function
selection
• Set the following mark detection setting parameters. The optional mark detection setting No. can be set.
k: Mark detection setting No. - 1
Storage item
[Pr.800] Mark detection signal setting
[Pr.801] Mark detection signal
compensation time
[Pr.802] Mark detection data type
[Pr.803] Mark detection data axis No.
[Pr.805] Latch data range upper limit
value
[Pr.806] Latch data range lower limit
value
[Pr.807] Mark detection mode setting
• Turn the power supply OFF or reset of the CPU module to validate the setting parameters.
• The mark detection starts by setting "1: Validates an external command." in "[Cd.8] External command valid" of axis 2 with
the program. Refer to "[Md.800] Number of mark detection" or "[Md.801] Mark detection data storage area (1 to 32)" of the
set detection setting No. for the number of mark detections and mark detection data.
Confirmation of mark detection data range
(Upper/lower limit value setting: Valid)
Real current value
(Continuous update)
Detection real current value (1st)
0 1
**
"0" clear by setting "1" in "[Cd.800] Number of mark detection clear request".
4: High speed input request
0
Set "1" before mark detection start.
Setting Storage details/storage value
value
2 Set "2: DI2" to the external command signal of axis 2.
4 Set "4: High speed input request" as the function used in the external
command signal of axis 2.
Setting Storage details/storage value
value
2 Set "2: Axis 2" to the external input signal for mark detection.
0 Set "0: (No compensation)" to the compensation time such as delay of
sensor.
2 Set "2: Real current value" to the target data for mark detection.
1 Set "1: Axis 1" to the axis No. of target data for mark detection.
0 Set "0" to the valid upper limit value for latch data at mark detection. (Mark
detection for all range is executed by setting the same value as lower limit
value.)
0 Set "0" to the valid lower limit value for latch data at mark detection. (Mark
detection for all range is executed by setting the same value as upper limit
value.)
0 Set "0: Continuous detection mode" to the mark detection mode.
Mark detection is not executed
because the number of mark detections
is already 2 (More than the specified
number of detections).
Detection real current value (2nd)
2
1
9 COMMON FUNCTIONS
9.9 Mark Detection Function
9
Buffer memory
address
219 (69+150n)
212 (62+150n)
Buffer memory
address
54000+20k
54001+20k
54002+20k
54003+20k
54006+20k
54007+20k
54008+20k
54009+20k
54010+20k
333