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Safety function blocks
406
02/16 MN05013001Z EN
The circuit diagram in easySafety now has five rungs:
Figure 206:
Example 2 "light curtain": Circuit diagram in
easySafety
The LC01I1 and LC01I2 input coils are directly associated
with the device terminals IS2 and IS3 and the Reset coil
LC01RE is linked to IS06. The LC01QS enable contact
switches the device outputs QS2 and QS4 directly.
The enable parameter stays at NEN, i.e. no external enable.
The operating mode is changed to CST “Controlled Start”.
The discrepancy time is set to 0.5 seconds.
The test signals for cross-circuit monitoring are assigned to
the corresponding device inputs in the TEST SIGNALSmenu.
The signal diagram of the function block for this application
shows:
• the dependence of the enable contact of LC01QS on the
state of coils LC01I1 and LC01I2.
• the relationship between elapsed discrepancy time
LC01DT and the error output LC01ER.
• the error acknowledgement with coils LC01I1 and LC01I2.
• the controlled re-enabling after the Reset coil LC01RE has
dropped out.
IS02---------------------------
Ä
LC01I1
IS03---------------------------
Ä
LC01I2
IS06---------------------------
Ä
LC01RE
LC01QS------------------------
uÄ
QS02
hÄ
QS04
LC01 NEN CST *
***
>DT
0.5s
IS01 <- -
Æ
IS02 <- T3
IS03 <- T4
...
æ
IS06 <- T2
...
IS14 <- -
Содержание easySafety
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