Figure 5-3 Module Supply 24 V Dc - Siemens Add 7 AddFEM Manual

AddFEM
Module Supply
The AddFEM is supplied with 24 V DC current via a connector with 2 screw termi-
nals from the FEM connector set, Order No. 6DL9900–8AA. At 60
perature the temperature in the area of the supply terminal can reach 70
val of the cable insulation required for 75

Figure 5-3 Module supply 24 V DC

Only full–wire cables or litz wires with wire end ferrules may be used for the mo-
dule supply with 24 V DC (stripping length: 7 mm).
Tightening torque of the screws when connecting the wires to the connector:
0.5 to 0.6 Nm
Warning
!
Only an extra–low voltage separated safely from the power supply may be used
for the 24 V DC module supply. Safety separation can be implemented for exam-
ple in accordance with the requirements in
VDE 0100 Part 410 ¢ HD 384-4-41 ¢ IEC 364-4-41
(as functional extra–low voltage with safety separation PELV) or in
VDE 0805 ¢ EN 60950 ¢ IEC 950
(as safety extra–low voltage SELV) or in
VDE 0106, Part 101.
Load Supply of the Digital Outputs
The 24 V DC load supply for the analog outputs is supplied by the AddFEM. The
24 V DC load supply for the digital outputs must be generated externally and fed
via the X7 connector.
AddFEM
C79000–G8076–C900–03
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Commissioning / Operation / Maintenance
o
C).
M: Reference potential
L+: +24 V power supply
o
C ambient tem-
o
C (appro-
5-5