System manual CECX / SSI Interface module CECX-C-2G1
CECX-II 29-5
29.4 Operating elements and displays
29.4.1 SSI status LEDs
To the left of each respective SSI interface socket (RJ-45) there is one
supply LED (green) and one data status LED (yellow).
Green: Lights up as soon as the power supply is present.
Yellow: Lights up when receiving data.
29.5 Connections and wiring
29.5.1 Power supply
!
WARNING!
Risk to persons by electric shock!
• Supply the device exclusively from power sources that have a safety
extra low voltage (e.g. SELV or PELV according to EN 61131-2)
• Connect only voltages and power circuits to connections, terminals and
interfaces with a rated voltage of up to 50 V that have a safe separation
from hazardous voltages (e.g. with sufficient isolation and voltage-
proof).
!
CAUTION!
Fire danger for component failure!
• Provide suitable fuses for the 24 V DC power supply for the final appli-
cation.
The maximum permitted fuse is 10A.
Section
Refer to the manufacturer-specific data sheet of the female connectors
used for type, cross-section and material.
For further information: See chapter Accessories
The actual p
ermissible wire cross-section is specified by the electrical con-
ditions of the connected equipment and the female connectors used:
z Max. load current and required heat dissipation through the connected
wire at maximum ambient temperature
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