Siemens SIMATIC FM 353 Manual page 220

Description of Functions
With reference point switch (RPS)
It is necessary to connect the reference point switch (RPS) to a digital input and
parameterize it in MD34.
Triggering of move-
ment, direction for
synchronization (R)
R+ ("edge-con-
trolled") or Start
R− ("edge-con-
trolled") or Start
9-20
Type of reference- (reference point offset = 0)
point approach
1st situation
Current-sourcing
pattern zero or
zero pulse exter-
nal, to right of
−
RPS
2nd situation
Current-sourcing
pattern zero or
zero pulse exter-
nal, to left of RPS
−
3rd situation
RPS centered
(no zero pulse
necessary)
−
4th situation
RPS edge
(no zero pulse
necessary)
−
1st situation equals R+ 2nd situation
see above mirrored
2nd situation equals R+ 1st situation mir-
see above rored
3rd situation equals R+ 3rd situation
RPS centered mirrored
(no zero pulse
necessary)
4th situation equals R+ 4th situation
RPS centered mirrored
(no zero pulse
necessary)
Sequence of motions
V − referencing velocity
A
V − reducing velocity
R
V V
A R
RPS
Ref. pt.
V
V
A
R
RPS
V
A
V
R
RPS
V
A
V
R
RPS
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
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+
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