AddFEM
Commissioning / Operation / Maintenance
5-5
AddFEM
C79000–G8076–C900–03
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
o
C ambient tem-
perature the temperature in the area of the supply terminal can reach 70
o
C (appro-
val of the cable insulation required for 75
o
C).
M: Reference potential
L+: +24 V power supply
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.
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