Commissioning
4.4 Setting up a STEP 7 project
Connecting the SIMODRIVE 611U to the Technology CPU
46 Product Information, 03/2008, A5E00272066-05
SIMODRIVE 611U
The homing cam on the SIMODRIVE 611U must be placed at the I0.x input (x: drive A or B).
Parameterize the I0.x input with the Equivalent zero mark function. You must enable the
equivalent zero mark via parameter P879 Bit 13.
Follow the procedure outlined in the section below on "Standard commissioning of
SIMODRIVE 611U" for the parameterization of input I0.x.
Comment for the 611U edge detection:
● For travel in the positive direction, only the signal change 1 → 0 is recognized as
equivalent zero mark. For travel in the negative direction, only the 0 → 1 edge is
recognized as equivalent zero mark. As a result, not all of the approach directions that
can be selected in the technology CPU in combination with SIMODRIVE 611U can be
used.
Homing mode "Encoder zero mark only"
Operational sequence
A homing cam signal is not necessary. The position is accepted at the next zero mark of the
encoder.
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