Mitsubishi Electric MELSEC Q Series, User Manual

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Chapter 14 Common Functions
Item
Performance specifications
QD77GF4 QD77GF8 QD77GF16
Number of mark detection settings Up to 16
Input signal
Axis 1 to Axis 4
External input signal (DI1 to DI4)
Axis 1 to Axis 8
External input signal (DI1 to DI4)
Axis 1 to Axis 16
External input signal (DI1 to DI4)
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 32767µs
Detection accuracy 10µs
Latch data
11 types + Optional buffer memory data (2 word)
(Feed current value, Feed machine 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
The details shown below explain about the "Mark detection function".
[1] Operation for mark detection function
[2] How to use mark detection function
[3] List of buffer memory
[4] Precautions