Lenze EVS93xx CrossCutter - Manual (Page 255)

Cross Cutter
Appendix
 Prepared Solution Servo PLC / ECSxA 1.1 EN 6-87
Variable name
Inputs (Variable type: VAR_INPUT)
Name Data type Value/Meaning
nIn_v INT Material speed in [incr./ms]: This provides the basis for the opening/closing of the tolerance
window (16384 = 15000[rpm]).
When the print-mark pulses are evaluated, system variable DFIN_nIn_v is typically evaluated at
this input.
bTpReceivedIn_b BOOL Input bit for the print-mark signal: A FALSE => TRUE edge tells the Tp_Window function block
that a print-mark signal has been detected.
When the print-mark pulses are evaluated, system variable DFIN_bTPReceived_b is typically
evaluated at this input.
dnActIncLastScan_p DINT Last-scan information: This value is made available by the touch-probe interface and indicates
the material feed in [incr.] between the point at which the print-mark signal occurred and the
start of the calling task.
When the print-mark pulses are evaluated, system variable DFIN_dnIncLastScan_p is typically
evaluated at this input.
dnCycleLength_p DINT Entry indicating the setpoint distance between two valid print marks in [incr.]:
On the basis of the setpoint distance, the TP_Window function block can open the tolerance
window in advance, before the next valid print mark (touch probe) is detected at input
bTpReceivedIn_b (see also model connection).
dnTpWindowSize_p DINT Width of the tolerance window in [incr.]: Only enter positive values between 2 and ...
(dnCycleLength_p – 1) at this input. You will find an example connection in the next section.
Note: If the width of the tolerance window is outside the permissible range, status output
nStatus will be set to = -2. Furthermore, all incoming print-mark pulses at input
bTpReceivedIn_b will be connected to output bTpReceivedOut_b. Status signal
bTpWindowOpen_b is set statically to TRUE, status signal bTpWindowActive_b is set statically
to FALSE.
Input to delete the position of the tolerance window:
FALSE The first print-mark pulse detected at input bTpReceivedIn_b defines the centre
of the tolerance window and sets its position. All subsequent print-mark signals at
bTpReceivedIn_b will be checked in respect of their position inside the tolerance
window and, if they are located inside the tolerance window, output to output
bTpReceivedOut_b.
bReset_b BOOL
TRUE Resets the tolerance window:
• All print-mark signals detected are blocked (output bTpReceivedOut_b is
set statically to FALSE).
• The status is set to nStatus = -4.
• Status signal bTpWindowOpen_b is set statically to TRUE.
• Status signal bTpWindowActive_b is set statically to FALSE.