Advantech PCI-1241, User Manual

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83 Appendix C
C.6 Home Mode4
In Home mode4, the motor will start up at low speed FL, and accelerate
to high speed FH towards the home sensor. Once the home sensor is
reached, the motor will decelerate, and go backward while the velocity
reaches FL. After changing direction, the motor will search for the index
signal then stop. Meanwhile you can configure how many index counts
will be ignored before stopping with parameter “EIC”. When EIC is ‘1’,
it means one index will be ignored and the motor will stop at the second
index after turning around. Like case 1 in the following diagram.
If the home sensor was active at start up, or the limit switch was met first,
the motor will go in the opposite direction when reaching the limit switch.
Then it will keep moving until it crosses the home sensor, and finally
search the home signal again. Like case 3 and case 4 in figure 4-5.
Figure C.5: Velocity Profile of Home Mode4
HOME
LMT
ECZ
Case 2
(EIC=0)
FA
Case 1
(EIC=1)
FA
Case 4
Case 3
(EIC=0)
(EIC=0)