Lenze EVS9332xS Manual do Utilizador descarregar pdf (Página 214)

Function library

Function blocks

3.2.56 Homing function (REF)

3−162

EDSVS9332S−EXT EN 2.0

Direct homing

The home position is on the home position offset.

l Mode 20 (C0932 = 20):

– Directly after the activation (REF−ON = HIGH), the drive traverses from the actual position

(REF−ACTPOS) to the home position.

– Before that, the actual position (REF−ACTPOS) can be loaded with the input value

REF−ACTPOS−IN (see chapter 3.2.56.3).

– The route and direction of travel results from the actual position (REF−ACTPOS) and the

home position offset (C0934) set.

Referenzpunk

Startpunkt Fahrtrichtung

Fahrtstrecke

Referenzpunktoffset (C0934)

REF-ACTPOS Fahrtstrecke

Fig. 3−152 Direct homing; approaching the home position in CW rotation

Mode 21 (C0932 = 21) is the same as mode 20 but additionally features:

– The actual position value (REF−ACTPOS) is stored when the mains is disconnected and

reloaded when the mains is connected.

3.2.56.3 Control via input signals

l REF−ON = LOW−HIGH edge starts homing:

– The input must remain on HIGH until the end of the homing process. Homing is aborted if

the input is set to LOW before the home position is reached.

l REF−ON = LOW interrupts homing:

– The drive is decelerated to zero speed along the ramp set under C0936.

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

REF−PSET.

– Has no effect if homing is already completed (REF−BUSY = LOW).

l REF−POS−LOAD = LOW−HIGH edge

– The profile generator accepts the angle at the input REF−ACTPOS−IN as starting value in the

actual position value REF−ACTPOS.

– The function is only active if REF−ON = LOW

– The function is only active in the modes 20 and 21.

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