3 Product Description
C-863.12 Mercury Controller
MS249E
Version: 1.2.1
27
▪
Move to the reference switch (start with
FRF
): current position = 8
▪
Move to the positive limit switch (start with
FPL
): current position = 20
As a result, parameter 0x16, which specifies the position value for the reference switch and is
included in the calculation of the position values for the limit switches during reference moves,
has the value 8.
The travel range is not to be limited by soft limits. As a result, the respective parameters are set
as follows:
▪
Parameter 0x15 = 20
▪
Parameter 0x30 = 0
Figure 8: The travel range of the axis is not limited by soft limits.
After a reference move of the axis to the reference switch (
FRF
command), query commands
return the following responses:
▪
TMN?
returns the value 0
▪
TMX?
returns the value 20
▪
POS?
returns the value 8
Example 2: Travel range limited by soft limits
The zero position should be located at approximately a third of the distance between the
negative limit switch and the reference switch. As a result, parameter 0x16 now has the value
5.4.
A safety distance is to be put in place at both ends of the travel range by establishing soft limits.
As a result, the soft limits are set as follows:
▪
Parameter 0x15 = 16.4