ADLINK PCI-8158 User Manual
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Operation Theory
needs to find a zero point of this machine. Our motion controller
provides a home return mode to make it.
We have many home modes and each mode contents many con-
trol phases. All of these phases are done by the ASIC. No soft-
ware is needed or CPU loading will be taken. After home return is
completed, the target counter will be reset to zero at the desired
condition of home mode, such as a raising edge when ORG input.
Sometimes, the motion controller will still output pulses to make
machine show down after resetting the counter. When the motor
stops, the counter may not be at zero point but the home return
procedure is finished. The counter value you see is a reference
position from machine’s zero point already.
The following figures show the various home modes: R means
counter reset (command and position counter) and E means ERC
signal output.