Operating instructions

38 Application manual Positioning 04/08
4.2.4 Home offset
With parameter Home Offset 1131, the point of reference for positioning can be
adjusted to the mechanical system.
The value adjusted for parameter
Home Offset 1131 is added to the home position.
Positive values will cause a shift of the point of reference in positive direction
(clockwise), negative values will cause a shift in negative direction (anticlockwise).
Point of reference for positioning = home position + home offset
In the factory settings, the point of reference for positioning corresponds to the
home position.
Home position
Home-Offset
Reference point for positioning
Home switch
Parameter Settings
No. Description Min. Max. Fact. sett.
1131 Home-Offset -(2
31
-1) u 2
31
-1 u 0 u
4.2.5 Speed and acceleration of homing operation
Homing is started at fast speed. As soon as a certain point is reached, operation is
continued at creep speed. The point at which the speed is changed depends on the
homing mode selected.
The factory setting of parameter Fast Speed 1132 corresponds to a rotary fre-
quency of 5 Hz for a four-pole machine with the reference system set to factory
settings,
Creep Speed 1133 corresponds to 1 Hz.
The direction is defined by the homing mode.
Parameter Settings
No. Description Min. Max. Fact. sett.
1132 Fast Speed 1 u/s 2
31
-1 u/s 163 840 u/s
1133 Creep Speed 1 u/s 2
31
-1 u/s 32 768 u/s
Application manual Positioning 04/0838