Function library
Function blocks
9.2.57 Homing function (REF)
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EDSVS9332S-D11 EN 3.0
9.2.57.4 Output of status signals
z REF-BUSY = HIGH: the homing function is active:
– The profile generator is switched to the outputs REF-PSET and REF-N-SET.
z REF-BUSY = LOW: the homing function is not active nor completed:
– The inputs REF-N-IN and REF-PHI-IN are switched to the outputs REF-N-SET and
REF-PSET.
z REF-OK = HIGH: homing has been completed successfully:
– Homing is completed when the setpoint of the profile generator has reached the home
position.
– If a following error is present, it is transferred into the function block DFSET and corrected
(see chapter 9.2.57.5), provided that the drive is not operated within the torque limitation.
z REF-OK = LOW:
– Homing is just being executed or
– the home position is not known anymore, e.g. due to a fault or
– homing has been aborted.
9.2.57.5 Wiring of the function blocks
z REF-PSET provides the phase setpoint belonging to REF-N-SET (following error) for the phase
controller in the function block MCTRL.
– Faultless homing requires a processing of both signals (REF-PSET and REF-N-SET).
z The homing function must be wired with the function block DFSET (see signal flow diagram for
the configurations 5000, 6000 and 7000).
– Otherwise accumulating phase errors may occur.
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