Connecting
3.4 Power supply
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 02/2012
51
Protection against external electrical interference
The table below shows how you must protect your system against electrical interference or
faults.
Table 3- 2 External electrical phenomena
For ... Requirement
All plant or systems in which the
component is installed
The plant or system is connected to a protective
conductor for the discharge of electromagnetic
interference.
Supply, signal, and bus lines The wiring arrangement and installation complies with
EMC regulations.
Signal and bus lines A cable or wire break cannot lead to undefined states in
the plant or system.
Additional references
The same installation instructions apply for the SIMOTION D4x5-2/CX32-2 control units as
for the SINAMICS S120 CU320-2 control units with regard to EMC.
See the SINAMICS manuals.
3.4.4 Connecting the power supply
Wiring the screw-type terminal block
The required 24 VDC load power supply is connected to the screw-type terminal block. The
terminal block must be screwed on tightly using a flat-bladed screwdriver.
DANGER
The 24 VDC should be configured as functional extra-low voltage with safe isolation.
Supply system lines
Use flexible cables with a cross section of 0.25 to 2.5 mm
2
(or AWG 23 to AWG 13) for wiring
the power supply.
If you only use one wire per connection, a ferrule is not required.
You can use ferrules without an insulating collar in accordance with DIN 46228, Form A long
version.
Pin assignments
For the pin assignment of the screw-type terminal block, see the
SIMOTION D4x5-2
Manual.
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