Control functions
7.4 Internal position control (IPos)
Note
• During the referencing process, the signals CWL and CCWL are unavaiable. Once the
process is complete, the signals will act as limits signal again.
• For the safety purpose, the maximum distance for searching the cam (p2606) and the
maximum distance for searching the zero mark (p2609) must be set.
Follow the steps below to perform referencing with this mode:
1. Set relevant parameters:
1)
2. Configure the signal SREF and CCWL.
3. Trigger SREF to a rising edge to start referencing.
Note
During the referencing, if SREF is OFF, the referencing stops.
4. If the servo motor reaches the reference point, the signal REFOK (if configured) is output.
5. Switch off the signal SREF, and the referencing finishes successfully.
196
Parameter
Range
p2599
-2147482648 to
2147482647
p2600
-2147482648 to
2147482647
p2604
0 to 1
1)
p2605
1 to 40000000
p2606
0 to 2147482647
p2608
1 to 40000000
p2609
0 to 2147482647
p2611
1 to 40000000
When p29240= 3, the direction for searching the reference cam must be CCW, that is
p2604=1.
Factory
Unit
setting
0
LU
Sets the position value for the refer-
ence point coordinate.
0
LU
Reference point offset
0
-
Sets signal source for start direction
of searching cam:
•
•
5000
1000
Speed for searching the cam
LU/min
2147482647
LU
Maximum distance for searching the
cam
300
1000
Speed for searching zero mark
LU/min
20000
LU
Maximum distance for searching the
zero mark
300
1000
Speed for searching reference point
LU/min
Operating Instructions, 09/2015, A5E36037884
Description
0: start in positive direction (CW)
1: start in negative direction
(CCW)
SINAMICS V90, SIMOTICS S-1FL6