Delem
V1204, 2.17
System 1 is the standard reference search system. For this system the motor drive must be
equipped with a direction sensitive enable/disable input.
System 2 Now the motordrive does not need any direction sensitive enable/disable input
anymore. Also you are free where you place the reference search direction switch (RSD). It
may be the same switch; EOT-switch.The advantage of the reference search cycle with system
2 is that in case the RSD switch is mounted in the middle of the X-axes stroke, the DA-control
senses the status of this switch. In case the X-axis is between the zero-position and RSD
switch a normal reference search cycle is initiated.
In case the X-axis is between the RSD and EOT+ switch the status of the RSD switch
indicates that reference search can start in the direction of the RSD switch (forward). Overall
you will have shorter reference search cycle time. Another advantage is the fact that it is not
needed to mount the limit switches for ref.-search.
Note:
Reference switch activated means RSD input is low. Reference switch not activated means
input is high (+24V).
Parameter 17:
Reference search direction
Range : 0 - 1
Unit : -
Default : 1
Function
Controls the direction of the reference search if Indexing (07) is programmed to 1.
0 = Downcounting direction.
1 = Upcounting direction.
Parameter 20:
Enable retract
Range : 0 - 1
Unit : -
Default : 0
Function
When set to 1, retraction is enabled.
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