ASDA Series Application Note Introduction of PR Operation H Y=0, Return to Z E S1 H Y=1, Ahead to Z E S1 S2 E H Y=2, Do not search for Z S1 Z Pulse PL Signal high low Figure 1.18 Homing Path when Reference to Limit Signal In Figure 1.18, take Y=1 and look for Z for example, no matter the starting position is S1 or S2, it will stop at position E after homing is completed. When starting position is S1, the motor will operate at higher speed until reaching the rising signal of positive limit (PL) and then turn to lower speed to look for Z pulse. When Z pulse is found, the motor will decelerate to stop.
When starting position is S2, as the PL is triggered, ASDA-A2 servo drive will have sensed that the current position has gone beyond the PL signal; motor will return and look for the rising signal of PL at low speed; upon finding, motor moves backward to look for Z pulse and then stop. March, 2015 1-15 L L L L E L