Bosch Rexroth IndraDrive MPH-02 Functional Description page 89

MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
SERCOS
master
X8 X4
X7
X31 X32
X10
X20 TX
X21 RX
X2
H20
Esc Enter
controller 3
Fig. 4-19: Connecting the fiber optic cables (example)
The fiber optic cable ring starts and ends at the SERCOS master (control
unit).
The optical output of the master is connected with the optical input of the
first drive (X21). The output of this drive (X20) is connected with the input
of the next drive etc.
The output of the last drive is connected with the optical input of the
master.
Setting the Drive Address
The drive address is set in the P-0-4025, Drive address of master
communication parameter (instead of using the address selector switch
as so far). A drive address set or changed in this parameter is only
activated at the next change of communication phase from "0" to "1".
The drive address is independent of the order of drive connections via the
fiber optic cables.
Setting the Transmission Length (Transmitting Power) of
the SERCOS interface
The length of the fiber optic cable connected to X20 (TX) is entered in the
P-0-4027, Transmission length SERCOS interface parameter.
Depending on the entered fiber optic cable length the required optical
transmitting power of the light source is automatically set. The controller
classifies the entered length in one of four ranges.
Master Communication
TX
RX
X8 X4
X7 X7
X31 X32
X10 X10
X20 TX
X21 RX
X2 X2
H20
Esc Enter
controller 2 controller 1
4-35
X8 X4
X31 X32
X20 TX
X21 RX
H20
Esc Enter
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