Connection; Description - Siemens Sinamics S120 Manual

6.5.3 24 V connection
6.5.3.1

Description

The electronic circuitry of the components is supplied with 24 V via the 24 V busbar system.
The 24 V connections between modules are established using jumper plugs from the
terminal kit.
The 24 V jumper plugs must be inserted before the drive line-up is commissioned.
Danger to life due to electric shock when connecting and disconnecting 24 V jumper plugs
during operation
If you attempt to connect or disconnect the 24 V jumper plugs when the system is in
operation, you might touch the DC link busbars. Contact with these busbars when they are
live can lead to death or serious injury.
• Only connect or disconnect the 24 V jumper plugs when the system is deenergized.
Fire hazard posed by 24 jumper plugs when DC link busbars are not connected
The 24 V jumper plugs may only be used when the DC link busbars of the components are
also connected. The 24 V jumper plugs can otherwise burn and cause severe injury or
death as result of fire or smoke.
• If the DC link busbars of the components are not connected, each component must be
Note
Malfunction because 24 V supply voltage is too low
Malfunctions can occur if the 24 V supply voltage to a component in the drive line-up drops
below the minimum value.
• Select an input voltage that is high enough to ensure a sufficient voltage supply to all
devices in the drive line-up. Do not exceed the maximum value for the supply voltage. For
information about the minimum and maximum values of the 24 V supply voltage, please
refer to Chapter "System data" (Page 35).
If required, connect the 24 V voltage supply via Control Supply Modules or 24 V terminal
adapters at various points in the line-up.
Ordering spare parts
24 V jumper plug
Power Units in Booksize C/D-Type Format
Manual, 01/2017, 6SL3097-4AC20-0BP1
WARNING
WARNING
supplied with 24 V separately via a 24 V terminal adapter.
6.5 Electrical connection
Article No.
6SL3162-2AA01-0AA0
Cabinet design
99