LSIS XBE-DC08A, User Manual

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Po
sit
io
n
in
g
Chapter 8 Functions
8-3
NOTE
1. While DOG signal maintains “On”, the origin will not be determined by HOME signal.
That is, when DOG signal changes from “Off” to “On”(acceleration section -> homing high speed) , from “On” to
“Off” (deceleration section -> homing low speed) and then when the HOME changes from “Off” to “On”, the origin
will be determined.
DOG signal
HOME signal
The origin is not determined while the DOG “ON”.
Speed
Time
2. While the homing speed acts to the deceleration section by homing high speed after the DOG signal is changed
from “Off” to “On”, from “On” to “Off”, the origin will not be determined even if encounters the HOME input.
The origin is not determined in the deceleration section.
Speed
Time
DOG signal
HOME signal
3. If the DOG signal is changed from “Off” to “On”, from “On” to “Off” and encounters external upper/lower limit while
waiting the HOME input, the action is as follow.
시간
Forward
DOG signal
Lower Limit
As the PLC changes the direction promptly without deceleration when
encounters upper/Lower limit during homing, cares should be taken in using
the stepping motor as it may cause “motor trip” .
Homing
command
HOME signal
Reverse
4. If “On” time of the origin is too short, the positioning module can not recognize it.
HOME
signal
≥ 1ms