Dc Link Adapter; Description; Safety Instructions For The Dc Link Adapter - Siemens SINAMICS S120 System Manual

DC link adapter

10.1

Description

The DC link adapter is used to directly feed the DC link voltage in the drive line-up. It is required
for the High Frequency Drive if the infeed is realized via an Active Line Module in the chassis
format. The supply is established at the side through the HF Damping Module. The connecting
cable cross-section should be selected based on the total current required for all of the
connected components. Shielded individual cores are recommended.
The connection cables must be fused accordingly.
10.2

Safety instructions for the DC link adapter

Electric shock when the protective cover of the DC link is open
Contact with live parts can result in death or serious injury.
• Only operate the components with closed protective cover.
Electric shock due to the residual charge of the DC link capacitors
Because of the DC-link capacitors, a hazardous voltage is present for up to 5 minutes after the
power supply has been switched off.
Contact with live parts can result in death or serious injury.
• Do not open the protective cover of the DC link until 5 minutes have elapsed.
• Measure the voltage before starting work on the DCP and DCN DC-link terminals.
Fire and device damage as a result of ground fault/short-circuit
The DC link connecting cables must be routed so that a ground fault or short circuit can be ruled
out. A ground fault can result in fire with associated smoke.
• Ensure that the total length of the DC link including the connecting cables does not exceed
• Protect the cables from mechanical damage.
In addition, apply one of the following measures:
• Using cables with double insulation.
• Observe adequate clearances, e.g. through the use of spacers.
• Route the cables in separate cable ducts or pipes.
High Frequency Drive
System Manual, 10/2020, 6SL3097-5AH10-0BP0
WARNING
WARNING
WARNING
10 m.
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