Activity Available/performed?
DC busbar When several cabinet units or transport units are installed
side-by-side,
the DC busbars must be connected to each oth‐
er by means of the jumpers provided.
(Chapter Installation / connect cabinet units / Connect DC
busbars").
Power connections
A yellow warning label is attached to the basic interference suppression module at each
connection clip.
● If
you operate the unit on a grounded line supply, remove the warning label by simply
pulling it off the connection clip.
● If you operate the unit on an ungrounded line supply (IT supply system), remove the
warning label together with the connection clip.
(Chapter "Electrical connection/Operation on an isolated line supply (IT supply system)")
The cables are properly connected with the required torque to the connections provided.
The maximum permissible cable lengths between the Motor Module and the motor are
complied with depending on the type of cable used.
When connecting the braking resistor, the maximum permissible cable lengths between
the Central Braking Module and the associated braking resistor is complied with.
The
thermo contact of the braking resistor is wired and its signal evaluated by the Control
Unit or by the control system.
("SINAMICS S120 Cabinet Modules" Manual, Chapter "Cabinet Modules/Central Braking
Modules").
When Motor Modules in the chassis format are connected in parallel and connected to a
motor with a single-winding system, either the specified minimum cable lengths are com‐
plied with or a motor reactor is installed.
(Manual "SINAMICS S120 Chassis Power Units, Liquid-Cooled/Motor Modules).
The cable shields must be properly connected.
The circuit breaker tripping current is set in accordance with the specific plant conditions.
("SINAMICS S120 Cabinet Modules" Manual, Chapter "Cabinet Modules/Line Connec‐
tion Modules").
The correct internal power supply is set in the Line Connection Module and the Auxiliary
Power Supply Module.
("SINAMICS S120 Cabinet Modules / Cabinet Modules / Line Connection Modules" Man‐
ual)
("SINAMICS S120 Cabinet Modules / Cabinet Modules / Auxiliary Power Supply Module"
Manual).
The fuses for the transformer in the Auxiliary Power Supply Module are adapted for a line
supply in the 3 AC 380 to 480 V voltage range.
("SINAMICS
S120 Cabinet Modules" Manual, Chapter "Cabinet Modules/Auxiliary Power
Supply Module").
The DC link capacitors are formed.
("SINAMICS S120 Cabinet Modules / Maintenance and service" Manual).
Signal connections
Checklists and forms
C.2 Electrical installation: Checklist
Applications for Cabinet Modules, liquid cooled
Operating Instructions, 04/2015, A5E35974555A 147
Siemens Drives & PLCs
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