6 Positioning mode
128 Festo – GDCP-CMMS/D-FW-EN – 1404NH – English
Ex ample for parameters: Mode “A/RA/RN”
This example describes the activation of a linear axis in four individual cases. The c ourse of the posi-
tioning curve is dependent on the parameterised parameters “Mode: A/RA/RN” and “Start c ondition:
Ignore/interrupt”.
Case
Positioning record Positioning record list Positioning profile
Mode Position ... Start condition ...
1 1 A 150 mm ... Ignore ...
2 1 A 150 mm ... Interrupt ...
2 A 120 mm ... Ignore ...
3 1 A 150 mm ... Interrupt ...
2 RN –70 mm ... Ignore ...
4 1 A 150 mm ... Interrupt ...
2 RA –40 mm ... Ignore ...
Tab. 6.8 Parameters: Mode “A/RA/RN”
Timing diagram: Parameters: Mode “A/RA/RN”
150 mm (A)
–70 mm (RN)
Case 1
Current position
50
0
100
t
s [ mm]
150
Start
(DIN8)[X1.23]
Case 234:
Start “Positioning record 2” via the start condition
“Interrupt”
–40 mm ( RA)
120 mm (A)
Case 2
12
Case 3
Case 4
Setpoint position
Start “Positioning
record 1”
A = Absolute positioning related to a fixed zero
point (e.g. projec t zero point)
RA = Relative positioning related to the current
actual position
RN = Relative positioning related to the current
setpoint position
Fig. 6.9 Timing diagram: Parameters: Mode “A/RA/RN”