Lenze DDS Global Drive PLC Developer Studio Manuel d'utilisateur télécharger pdf (Page 27)

Function block library LenzeElectricalShaft.lib

Special functions

2.1.4 Homing function (L_REF)

2−17

LenzeElectricalShaft.lib EN 1.2

2.1.4 Homing function (L_REF)

This FB is used to bring the drive shaft to a specific position.

L _ R E F

d n A c t P o s _ I n _ p

C T R L

b P o s L o a d _ b

b M a r k _ b

b O n _ b

n N I n _ a

d n P o s I n _ p

b R e f O k _ b

b R e f B u s y _ b

n N S e t _ a

b y H o m i n g M o d e

d n R e f O f f s e t

d n H o m i n g S p e e d

w T i T i m e H o m i n g

d n T a r g e t P o s

b A c t T P R e c e i v e d _ b

d n A c t T P L a s t S c a n _ p

T P / M P

C T R L

n N A c t _ v

d n A c t P o s

d n P o s O u t _ p

d n P o w D o w n A c t I n t e R e t a i n

Abb. 2−10 Homing function (L_REF)

VariableName

DataType SignalType VariableType Note

bActTPReceived_b Bool binary VAR_INPUT TouchProbe received

dnActTPLastScan_p Double Integer position VAR_INPUT Phase−angle difference between TouchProbe and start

of task

dnActPos_In_p Double Integer position VAR_INPUT Loading value for the current position

bPosLoad_b Bool binary VAR_INPUT FALSE−TRUE edge = phase−angle at input

dnActPosIn_p is loaded into REF−ACTPOS (start value)

bMark_b Bool binary VAR_INPUT Home position switch

bOn_b Bool binary VAR_INPUT TRUE = start homing

nNAct_v Integer velocity VAR_INPUT Actual speed, for calculating the actual position

(16384 º 15000 rpm)

nNIn_a Integer analog VAR_INPUT Speed setpoint in [%] of n

max

(C0011)

(C0011 º 100 % º 16384)

dnPosIn_p Double Integer position VAR_INPUT dnPosIn_p is switched through to dnPosOut_p after

homing

dnActPos Double Integer position VAR_OUTPUT Actual position of the calculated position profile

dnTargetPos Double Integer position VAR_OUTPUT Target position of the calculated position profile

bRefOk_b Bool binary VAR_OUTPUT TRUE = homing completed/reference point known

bRefBusy_b Bool binary VAR_OUTPUT TRUE = homing function active

nNSet_a Integer analog VAR_OUTPUT Speed setpoint for n−controller

dnPosOut_p Double Integer position VAR_OUTPUT Phase setpoint (contouring error for phase controller in

FB MCTRL)

dnPowDownActInte

Retain

Double Integer − VAR_IN_OUT For Mode 21, to save the position after switching off

the supply power

byHomingMode Byte − VAR CONSTANT RETAIN Setting for homing modes

dnRefOffset Double Integer − VAR CONSTANT RETAIN Setting for homing offset (1 º 1 incr.)

dnHomingSpeed Double Integer − VAR CONSTANT RETAIN Setting for homing speed

(286331153 º 16000 rpm)

wTiTimeHoming Word − VAR CONSTANT RETAIN Setting for ramp time (100 º 1 s)

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 44 45

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Lenze DDS Global Drive PLC Developer Studio Manuel d'utilisateur Page 27

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