Operating instructions

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5-10 Electrical Data Rexroth IndraDrive

DOK-INDRV*-FU*********-IB01-EN-P

Analog Input Type 2

DA000025v01_nn.FH9

GND

R

u

U+

R

u

U-

AD

AD: analog/digital converter

Fig. 5-15: Analog voltage inputs

Data Unit Min. Typ. Max.

allowed input voltage

voltage inputs

V-10 +10

input resistance

voltage input

kOhm 1000

input bandwidth kHz 50

common-mode range V -50 +50

common-mode rejection dB 70

relative measuring error

at 90% U

emax

% -0,3 +0,3

converter width A/D converter

incl. polarity sign

Bit 12

oversampling 8-fold

dynamic converter width with

oversampling

Bit 14

resulting resolution mV/Ink 1,25

cyclic conversion us 500 (depending on firmware)

conversion time us 40

Fig. 5-16: Analog voltage inputs