Lenze 931E/K Small Drives Control - Manual (Page 82)

Commissioning
Course program
Type of command − Position branch
5
l
82 SW−HB 13.0002−EN 4.1
If neither Evaluate NEXT1 nor Evaluate NEXT2 is set, the target selected under NEXT1 will
be approached. Thus, you can carry out a linear positioning process (e.g.
POS1
WPOS2WPOS3).
Figure 19 assumes that positioning will be started in program step 10. With the start of
positioning (10), the course program will change to the next line, program step 11.
Assuming that NEXT1/2 has been set to "Complete position, then target", the NEXT1/2
inputs will be polled in the second half of the program step when the message "Target
reached" has been activated. All signal transitions detected since the start of positioning
are evaluated. If the signal "Target reached" has been set without detection of a rising
signal of NEXT1/2, the program will remain in program step 11 until at least one signal of
NEXT1/2 has been detected.
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
931E_112
Fig. 8 Time chart − position branch
 Program step 10
‚ Program step 11
0 Positioning
1 Target reached
2 NEXT1/2 edge found
3 DOUT1/2=HIGH/LOW
4 DOUT1/2=Target reached/remaining path
5 Course program activities
t
1
Approach position (program step 10)
t
2
New position
t
3
DOUT1/2=HIGH/LOW program step 10
t
4
DOUT1/2=HIGH/LOW program step 11
t
5
Target reached/remaining path (positioning program step 10)
t
6
Approach new position
t
7
Evaluate NEXT1/2
t
8
Calculate new jump destination/new positioning