Bosch PIN8 N1 Guía para resolver problemas Pagina 488

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8-56 Drive Functions MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
act
corr
act,
x x =
x
act
: uncorrected actual position value 1 or 2
x
act,corr
: corrected actual position value 1 or 2
Fig. 8-33: Actual position value for v(cmd) > standstill window (S-0-0124)
valuecorrectionx x
act
corr
act,
+=
x
act
: uncorrected actual position value 1 or 2
x
act,corr
: corrected actual position value 1 or 2
Fig. 8-34: Actual position value for v(cmd) < (-)standstill window (S-0-0124)
0/+1
S-0-0051/53, Pos. feedb. 1/2
value
S-0-0058, Reversal clear.
pos. cmd. value difference or
velocity command value
S-0-0124, Standstill window
S-0-0051/53, Pos. feedb.
1/2 value (corrected)
Fig. 8-35: Block diagram for backlash on reversal correction
The following procedure is recommended for determining the value for
parameter S-0-0058, Reversal clearance:
by means of jog mode move axis in positive direction
place dial gauge at appropriate spot of mechanical axis system and
set it to zero
jog axis in negative direction until change in pointer deflection of dial
gauge is visible
The reversal clearance then is determined according to the following
calculation:
gaugedialcontrol XXclearancereversal =
X
control
: distance traveled from zero position of dial gauge according to
control display
X
dial gauge
: distance traveled according to dial gauge referring to its zero
position
Fig. 8-36: Determining the input value for S-0-0058
Determining the Reversal
Clearance
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