Bosch Rexroth IndraDrive MPH-02 Functional Description page 236

Firmware for drive controllers

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Drive Control

Calculating P-0-0523,

Commutation setting measured

The input value in P-0-0523 required for determining the commutation

offset must be calculated from the measured relative position of primary

part with regard to secondary part (see fig. "Measuring the relative

position between primary and secondary part", distance d, e, f or g,

according to possibility of access), as well as a motor-dependent constant

(see "Calculation formulas for P-0-0523" and table "Motor constant

for commutation setting").

commutation setting measured value in mm

distance reference point 1 – front side of primary part in mm

distance reference point 2 – front side of primary part in mm

distance reference point 3 – front side of primary part in mm

distance reference point 4 – front side of primary part in mm

motor constant for commutation setting in mm

length of primary part in mm

see fig. above "Measuring the relative position between primary and

secondary part"

Fig. 6-19: Calculation formulas for P-0-0523

measured value you have to make sure the preceding sign is

If P-0-0523 is determined with a negative sign, this has to be

DOK-INDRV*-MP*-02VRS**-FK01-EN-P

MPH-02, MPB-02, MPD-02

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