Payload Adjustment Influence On Displacement; Dl Stage Acceleration - Newport DL225 User Manual

DL Stage Series
EDH0391En1031 — 03/18
3.5.3

Payload Adjustment Influence on Displacement

DL linear motor stages are sensitive to load variations and system
stiffness. The charts below show the behavior of the displacement an
underestimated/overestimated moving mass.
The driving force requires a good adjustment of the "Forces and Masses"
(FM) and the payload (FMP) parameters. Refer to the "FM" and "FMP"
commands in the DL Controller manual.
Payload mass too high vs adjustment
X
0
-X
0 t
Time
3.5.4

DL Stage Acceleration

Below is a chart illustrating the allowable operating area of the stage
based on the load.
Total load = Pay Load + Carriage Mass (0.85 kg)
8000
7000
6000
5000
4000
3000
2000
1000
High-Performance Delay Line Stages
CAUTION
FREQUENCY
OF THE PAYLOAD
300 Hz
LOAD
1 kg
DL STAGE
Payload mass good vs adjustment
2t 0 t
Time
0
0 2 4 6 8
Centered Load (N)
6
MOTION AFTER EXCITATION
Payload mass too low vs adjustment
2t 0 t
Time
10 12 14 16 18 20
2t