REXROTH IndraControl L25 CML...3N Series, Project Planning Manual

Page: 36 / 72

U
LS
is electrically isolated from the voltages U
M
and U
S
.
Requirement: A power supply unit that is electrically isolated from
the power supply units for U
M
and U
S
is used for U
LS
.
U
M
and U
S
are not electrically isolated from each other.
24 V Voltage Supply of the Main Circuit U
M
The 24 V voltage for the main circuit supply U
M
on terminal 2.2 is not used for
IndraControl L25.
A main circuit U
M
begins at a power terminal at the IndraControl L25 and is lead
to the next power terminal through all following terminals. At the next power
terminal, a new circuit is started; its potential is isolated from the previous one.
Several power terminals can be used within one station.
Function Several segments, independent from each other, can be created within the
main circuit. The main circuit provides the voltage potential, from which the
segment voltages (U
S
) are derived. The splitting into segments permits to pro‐
tect or switch e. g. the supply of several actuators separately.
Current carrying capacity The maximum current carrying capacity is 8 A (total current with the segment
circuit). If the limit value has been reached, a new power terminal must be used.
U
M
U
S
U
L
U
ANA
GNDL
U
LS
U
M
U
M
IndraControl Rexroth Inline
PWR IN PWR IN SEG/F
PWR IN Voltage terminal at IndraControl L25
R-IL 24
PWR IN
Power terminal
R-IL 24
SEG/F
Segment terminal with fuse
Fig.7-9: Main circuit
Generation of U
M
In the simplest case, the main voltage U
M
can be supplied at the IndraCon‐
trol L25.
U
M
can also be supplied via a power terminal. A power terminal has to be used
in the following cases:
1.
An electrical isolation has to be set up.
2. The maximum current carrying capacity of a voltage jumper (
M
, U
S
or GND,
total current of U
S
and U
M
) is reached.
+24 V Supply of the Segment Circuit U
S
Segment circuit supply U
S
has to be connected to contact 1.1 and is lead
through the following series Rexroth Inline I/O terminals. It forms the segment
circuit or auxiliary circuit (via voltage jumpers) of the Rexroth Inline terminals
and the onboard I/Os.
Bosch Rexroth AG DOK-CONTRL-IC*L25*****-PR03-EN-P
Rexroth IndraControl L25
34/69
Connections and Interfaces