104
4 AUXILIARY AND APPLIED FUNCTIONS
4.3 Mark Detection Function
Mark detection data
Set the data to latch at mark detection.
■Motion control data
Settable Motion control data is shown in the table below.
*1 Current value per cycle takes into consideration the delay of the servo amplifier.
Since the system-specific delay exists in the current value data of the synchronous encoder axis, there may be a difference
between the actual current value and the current value of mark detection. When the "synchronous encoder current value",
"synchronous encoder axis current value" or "synchronous encoder axis current value per cycle" is used in the mark detection
data, the mark detection process compensation time shown below can be set to compensate the delay. However, when the
"phase compensation advance time" is set in the synchronous control parameter to compensate the delay of the synchronous
encoder, setting of the mark detection process compensation time is not necessary.
■Word device data
•Device
Word devices are set for mark detection data. Refer to device list for the range of word devices that can be set. (Page
75 Device List)
• Data type
Set the data type at word device data setting.
Setting Data Unit Data type Axis No. setting range
R64MTCPU R32MTCPU R16MTCPU
Feed current value 10
-1
[m], 10
-5
[inch],
10
-5
[degree], [pulse]
32-bit integer
type
1 to 64 1 to 32 1 to 16
Real current value
Servo command value [pulse]
Position feed back
Absolute position encoder single revolution position
Absolute position encoder multiple revolution position 16-bit integer
type
Deviation counter value [pulse] 32-bit integer
type
Servo command speed [pulse/s]
Motor speed 0.01[r/min]
Motor current 0.1[%] 16-bit integer
type
Command generation axis feed current value Control unit 32-bit integer
type
Command generation axis cumulative current value
Command generation axis current value per cycle
Synchronous encoder axis current value Encoder axis unit 1 to 12
Synchronous encoder axis current value per cycle
Cam axis current value per cycle Cam axis cycle unit 1 to 64 1 to 32 1 to 16
Cam axis current value per cycle (Actual)
*1
Synchronous encoder type Mark detection process compensation time[s]
Incremental synchronous encoder -614
Q171ENC-W8 (Via servo amplifier) -968
Data type Remarks
16-bit integer type
32-bit integer type Set the device No. as an even No.
64-bit floating-point type
To Next Page
Loading...
