User manual

PCI-1241/1242 User Manual 82

C.5 Home Mode3

In Home mode3, 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 starts to search for an encoder index signal with high

speed FH. After the index is reached, the motor will decelerate to FL then

stop. Meanwhile, you can configure how many index counts will be

ignored with parameter “EIC”. When EIC is ‘1’, this means one index

will be ignored and the motor will stop at the second index after the home

sensor was triggered. Like case 1 in 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 4-4.

Figure C.4: Velocity Profile of Home Mode3

HOME

LMT

Case 2

(EIC=2)

Case 1

(EIC=1)

ECZ

Case 4

Case 3

(EIC=1)