Lenze EVS93xx CrossCutter - Manual (Page 258)

Cross Cutter
Appendix
Prepared Solution Servo PLC / ECSxA 1.1 EN 6-90
6.6.4 XPositionTrimming function block
The XPositionTrimming function block can be used to move the x position in a negative or
positive direction by means of inching. Furthermore, a position value can be defined for an
absolute positioning operation to which the function block is to move the x position. To move the
x position, the function block generates a speed value at the output to move the x axis directly.
A print-mark-sensor distance is also defined at the output by the block.
Task information
Can be called in: Cyclic task Time-controlled task
(INTERVAL)
Event-controlled task
(EVENT)
Interrupt task
Variable names
Inputs (Variable type: VAR_INPUT)
Name Data type Value/Meaning
dnActXLength_p DINT
Cycle of the x axis. Connect this input to output dnActXLength_p of the L_CamData
FB.
dnSetPositionTrimming_p DINT Setpoint for absolute positioning. Connect this variable to the position value you
wish to use for correction. As soon as this value changes, absolute positioning will
be performed to the specified value.
bTrimPosDirection BOOL Setting this variable to TRUE will cause a positive trimming speed
(nXTrimmingFactor_v ) to be output to output nxVelTrimmingFactorOut_v and a
corresponding position value to be output to output dnOutTpPos_p.
bTrimNegDirection BOOL Setting this value to TRUE will cause a negative trimming speed to be output to
output nxVelTrimmingFactorOut_v and a corresponding position value to be output
to output dnOutTpPos_p.
nXTrimmingFactor_v INT Entry indicating the trimming speed for trimming in a positive and negative direction
(bTrimPosDirection and bTrimNegDirection)
Reset Variable dnOutTpPos_p to zero.
TRUE Set the value of variable dnOutTpPos_p to zero.
bSetToZero BOOL
FALSE Value of variable dnOutTpPos_p will remain its value.
Perform absolute positioning.
TRUE Perform absolute positioning in accordance with the value of
variable dnSetPositionTrimming_p.
bExecuteSetPositionTrimming BOOL
FALSE Abort absolute positioning.