Lenze EVS93xx CrossCutter - Manual (Page 109)

Cross Cutter
Features of the "Cross Cutter" prepared solution
Prepared Solution Servo PLC / ECSxA 1.1 EN 2-95
2.5.17 Evaluation of the master value signal
The incoming master value is expected at the DFIN Input (X9 for Servo PLC or X8 for ECS).The
user can invert and even simulate the incoming master value. The simulation mode can be
helpful during installation and start-up, in order to test the system. However, the set value in
simulation mode is given directly to the system, there is no acceleration or deceleration ramp
included. For this reason big jumps in the set value should be avoided because otherwise there
is the risk of a following error.
Caution!
The master value applied on the drive controller via the DFIN input must not be
negative! If the master value is negative, it must be inverted. The user can check code
C0426 to determine whether or not the master value is negative. This code displays the
input value of the DFIN input.
Caution!
If you use the ECS Sytem: With the Parameterisable variant it is not possible to use an
absolute encoder because this encoder type uses the same input X8 as the frequency
cuppling via DFIN. If an absolute encoder is necessary in the application the user has to
use the programmable version of the prepared solution Cross Cutter and have to handle
the line feedback for example via CAN on its own.
Variable names
Inputs
Global variables (Variable type: VAR_GLOBAL)
Name Data type Value/Meaning
Activates master value simulation.
This value is written in code C4135/000 bit 10.
This value is displayed in code C4136/000 bit 10.
TRUE Master value is simulated via code C3681/000
(g_nTestsignalDFIN_v).
g_bUseTestsignal BOOL
FALSE Master value is used by DFIN input.
Inversion of DFIN signal
This value is written in code C3635/000.
TRUE Invert DFIN signal.
g_bInvertDFINSignal BOOL
FALSE No inversion.
g_nTestsignalDFIN_v INT Selection of the simulation value for DFIN simulation.
This value is displayed in code C3681/000; this variable can be written to this code.