
11 Driver Function
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11.3
Other Functions
11.3.1
Limit Operation
Hard ware and software limits can be used to stop drive.
Hardware limit
Install a limit sensor to the machine to monitor system operation directly.
Connect ±Limit (Pin11, 12) at I/O connector (CN3).
Set Instant (instant stop)/Slow (deceleration stop) at Limit Stop Mode of Operation Mode.
Software limit
Unlike the input of hardware limit signal by external sensor, this limit function is set using
internal position data. To operate software limit, set software limit (software limit) as Enable.
High and low limit values can be set each axis separately at ±software limit parameter.
Operation Mode
Setting value
Parameter
Setting value
Software Limit
Enable
+Software Limit
100,000
-Software Limit
-50,000
When the setting value is as above, the position value operates among -50,000 to
100,000 range. When it is out ouf the range, the drive decelerates and stops.
Hardware limit operates independently regardless of the software limit settings, and
only hardware limit except limit home search is operated during home search.