Siemens SIMATIC FM 353 Manual page 168

Starting up
Positioning
Use the following flow chart to check axis travel to a target position.
Select
Set
Speed level 1 = 0.5 @ V
Speed level 2 = 0.5 @ V
Set
Set reference point with value 0
Check check-back signal "SYN"
Set
Servo enable = ON
Set
Setpoint for increment
Start axis
Plus or minus direction
(make sure travel area is clear!)
Check position actual value using ex-
ternal measurement device
Additional testing desired?
Select
Fig. 7-9 Positioning verification
7-20
BA = relative incremental
Increment = 254
OVER = 10%
max
max
Direction OK?
Yes
Amount OK?
Yes
Yes
OVER = 1--200 %
254 = Setpoint value for increment
Depending on traversing speed of test move-
ment, select any travel distance increment which
is great enough to ensure that the set speed is
reached within the speed profile of the test move-
ment. (Preliminary computation or evaluation of
the frequency display in the service data).
External measurement device options
include:
S
Laser measurement device
S
Linear scale with position indicator
S
Dial gauge
S
Measurement scale featured on axis
No
No
No
Repeat basic startup, see
END
Figure 7-8
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0