Siemens SIMATIC ET 200S - Figure 2-9 Defective Reference Cam, Start before REF; Figure 2-10 Defective Reference Cam, Start at LIMIT_P

1STEP 5V/204kHz
2.6 Functions of the 1STEP 5V/204kHz
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
35
Behavior: Defective Reference Cam with Limit Switch (Interruption of Search)
/,0,7B0 5() /,0,7B3


',5B3
3
)
D
)
VV
'HIHFWLYH
Figure 2-9 Defective Reference Cam, Start before REF
/,0,7B0 5()
/,0,7B3

',5B3
3
)
D
)
VV
'HIHFWLYH
Figure 2-10 Defective Reference Cam, start at LIMIT_P
Behavior in the Case of a Constantly Set Reference Cam without Limit Switch
At the end of the first section, after 1048575 pulses have been output, the search is
terminated with a cleared SYNC and POS_RCD status bit.
Behavior in the Case of Failure of the Reference Cam without Limit Switch
All three sections of the search are executed, each with output of 1048575 pulses.
Afterwards, the search is interrupted with a cleared SYNC and POS_RCD status bit.
See also
Search for Reference (Page 31)
Assignment of the Feedback and Control Interfaces (Page 44)