Lenze 8400 HighLine - Manual (Page 580)

8 Basic drive functions (MCK)
8.8 Positioning
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Lenze · 8400 HighLine · Referenzhandbuch · DMS 10.0 EN · 06/2014 · TD05/TD14
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Position ( C01301/1...15 )
Target position or distance to be traversed.
When the position is indicated, a distinction is made between absolute position and relative position:
• An absolute position always indicates the distance to the defined zero position:
Absolute position = Target position
• A relative position indicates the distance to the starting position (current position):
Relative position = Target position - Starting position
Speed ( C01302/1...15 )
Maximum speed during the positioning process.
• Depending on the profile parameters of position, acceleration and deceleration , it is possible that
the drive will not even reach the maximum speed. In this case, the graphic representation will be a
trapezium instead of a triangle:
 Acceleration
 Travelling speed (is not reached in this case)
 Deceleration
 Target position (or traversing distance)
Acceleration ( C01303/1...15 )
Maximum acceleration during the positioning process.
• Two types of acceleration are distinguished:
• Constant acceleration: the speed increases linearly.
• Linearly increasing acceleration: Speed increases in S-shape.
A linearly increasing acceleration (S-profile) results from the setting of an S-ramp time (see more
below).
 Constant acceleration (L-profile)
 Linearly increasing acceleration (S-profile)
Deceleration ( C01304/1...15 )
Maximum deceleration during the positioning process.
Icon Profile parameter
A
10 20 30 40 50 60 70 80 90 100
10
30
80
P1
P2
P3
0
10 20 30 40 50 60 70 80 90 100
10 20 50
P3 P2 P1
0
B
Ž Œ


v
pos
v [unit/s]
t [s]
C
Œ

v
pos
v
pos
v [unit/s]
v [unit/s]
t [s]
t [s]
D