Technical data

Configuration
CPU 317T: Technology Functions
A5E00251798-03
4-47
Parameter Value Description
Approach velocity Velocity at which the axis approaches the
BERO.
Entry velocity Velocity at which the axis approaches the
(shifted) homing position after detection of the
zero mark.
Shutdown velocity Velocity at which the axis approaches the zero
mark after detection of the BERO.
Homing position offset A homing position offset shifts the homing
position by the configured distance. The axis
moves along the configured distance at a
velocity defined in Approach Velocity, starting
at the synchronization position with zero mark.
Modulo axes always take the shortest
distance.
Max. distance to BERO Disabled Distance up to BERO detection not monitored
Enabled Monitoring of the distance between the start of
the reference point approach and BERO
detection. If the difference in this distance
exceeds the configured distance, the
corresponding technology DB indicates error
801D. The reference point approach is
canceled.
Max. distance to zero mark Disabled Distance to go to the zero mark is not
monitored
Enabled Monitors the distance an axis travels between
the BERO and the zero mark. If the difference
in this distance exceeds the configured
distance, the corresponding technology DB
indicates error 801D. The reference point
approach is canceled.
Time-based execution of the reference point approach
• Phase 1: Approach to BERO (homing cam)
The axis starts its reference point approach at the configured approach velocity
and in the direction set in "Direction of reference point approach." The
approach to BERO (Phase 1) ends when the BERO (homing cam) is reached.
In addition, the distance between start position of the reference point approach
and the BERO position can be monitored by setting "Max. distance to BERO"
check box.The homing operation is canceled with error if the BERO is not
detected within the configured distance after the start of the reference point
approach.