Lenze EVS93xx CrossCutter - Manual (Page 61)

Cross Cutter
Features of the "Cross Cutter" prepared solution
 Prepared Solution Servo PLC / ECSxA 1.1 EN 2-47
The following homing modes can be selected:
• Homing mode 0:
The drive rotates in a positive direction (clockwise rotation) until the homing switch's negative
edge is detected. The next zero pulse from the motor feedback system determines the home
position (machine zero point).
If you do not wish the home position to be the zero point of the absolute measuring system
used, you can use an offset value (machine zero distance, C3626/000) to set the home
position to the zero point of the measuring system. Once homing is complete the drive will
stop at position 0.000[s_units]:
Figure 12: Graph of homing mode 0
In the example illustrated above, the home position has a negative value with reference to
the measuring system zero point, because once the zero pulse/touch-probe signal has been
detected, the drive continues to move in a positive direction to a position 0.0000[s_units].
If you do not wish homing to end at the measuring system zero point, you can in addition
preset an end position to come after homing (homing target position, C3627/000). This
provides the requisite conditions for setting the measuring system zero point outside the
drive's traversing range.
• Homing mode 1:
(like homing mode 0 but with a negative traversing direction)
Control signal
"Homing"
Zero pulse feedback
or
Touch-probe signal
Homing switch
Status signal
"Home position
detected”
Homing speed
Home position
g_dnMachineZeroDistance (C3626/000)
1. Negative edge of homing switch
2. Zero pulse