Technical data

Technology objects
CPU 317T: Technology Functions
A5E00251798-03
3-9
Homing modes
• Active homing
A special traversing motion is executed for this type of homing. A currently
busy motion command is first canceled. The following homing modes can be
set in S7T Config:
- Homing with BERO (homing output cam) and zero mark
- Homing with BERO only
- Homing with zero mark only.
• Passive homing
The homing function does not trigger an axis motion in this case. Any busy
motion commands are not affected. Configurable homing modes:
- Homing with BERO (homing output cam) and zero mark
- Homing with BERO only
- Homing with zero mark only.
• Direct homing
The axis position is set regardless of homing cams (zero marks or BEROs).
When the axis is to be homed at a precise mechanical position, the axis must
be at a zero velocity during the process.
• Adjusting the position value
An offset value is deducted from the current axis position value. Current
motions and homing are not influenced by this setting.
• Correcting the internal axis coordinate system
An offset value is deducted from the actual position value of the base or
superimposing coordinate system. Current motions and homing are not
influenced by this setting.
Note
Device-specific properties
When homing with BERO and zero mark, the BERO can be connected to the
integrated inputs of the CPU or to a DP slave connected to DP(DRIVE).
When homing with BERO only, the BERO must be connected to the input device,
e.g. at the drive, at ADI4.
For further information on device-specific, marginal conditions and additional
parameter settings, refer to the supplementary information on SIMODRIVE 611U,
MASTERDRIVE-MC or ADI4 on the CD-ROM for your product and to the
equipment manuals.