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Function library

Function blocks

3.2.56 Homing function (REF)

3−163

EDSVS9332S−EXT EN 2.0

3.2.56.4 Output of status signals

l REF−BUSY = HIGH: the homing function is active:

– The profile generator is switched to the outputs REF−PSET and REF−N−SET.

l REF−BUSY = LOW: the homing function is not active nor is it completed:

– The inputs REF−N−IN and REF−PHI−IN are switched to the outputs REF−N−SET and

REF−PSET.

l 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 3.2.56.5), provided that the drive is not operated within the torque limitation.

l REF−OK = LOW:

– Homing is currently being executed or

– the home position is no longer known, e.g. due to a failure, or

– homing has been interrupted.

3.2.56.5 Function block interconnection

l REF−PSET provides the angle setpoint belonging to REF−N−SET (following error) for the angle

controller in the function block MCTRL.

– Faultless homing requires a processing of both signals (REF−PSET and REF−N−SET).

l The homing function must be connected to the function block DFSET (see signal flow diagram

for the configurations 5000, 6000 and 7000).

– Otherwise accumulating angle errors may occur.

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