Bosch Rexroth IndraControl L40 - Fig. 7-3: Pin Assignment of the Voltage Module; Fig. 7-4: Diagnostic LED of the Power Terminal; Fig. 7-5: Diagnostic LED of Segment Terminal; Fig. 7-6: Diagnostic LED of Supply Voltage

IndraControl L40 Connections and Interfaces 7-3
DOK-CONTRL-IC*L40*****-PR02-EN-P
This voltage module (PWR IN) is used to feed the following three
voltages: U
LS
(24-V logic voltage), US (24-V segment voltage) and UM (24-
V main voltage):
Terminal Signal
1.1 + 24 V DC segment voltage (U
S
)
1.2 + 24 V DC supply voltage (U
LS
)
1.3 LGND (ground supply voltage)
1.4 and 2.4 FE (functional earth ground)
2.1 and 2.2 + 24 V DC main voltage (U
M
)
2.3 PGND (ground main and segment voltage)
Fig. 7-3: Pin assignment of the voltage module
Five light-emitting diodes are arranged at the upper edge. They have the
following meaning:
"UM" LED Meaning
Off Main circuit supply is missing.
Green 24-V supply U
M
of main circuit is present.
Fig. 7-4: Diagnostic LED of the power terminal
"US" LED Meaning
Off Segment circuit supply is missing.
Green 24-V supply U
S
of segment circuit is present.
Fig. 7-5: Diagnostic LED of segment terminal
"UL" LED Meaning
Off Supply voltage U
LS
is missing.
Green 24-V supply voltage U
LS
is present.
Fig. 7-6: Diagnostic LED of supply voltage
"FS" and
"FN" LEDs
Meaning
No function at present.
Fig. 7-7: "FS" and "FN" LEDs
The 7.5-V inline voltage and the +24-V analog voltage UANA are derived
from the external +24-V voltage U
LS
.
24-V Supply Voltage U
LS
The internal voltages required in the IndraControl L40 are generated from
the 24-V supply voltage U
LS
(terminal 1.2).
Note: U
LS
is electrically isolated from the voltages U
M
and U
S
.
Requirements: 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.
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