Siemens SINAMICS S120 Manual page 68

Electrical installation
4.2 Electrical installation: Checklist
Item Activity
Power connections
7 A yellow warning label is attached to the basic interference suppression module at
each connection clip.
The warning label must removed from the connection clip (by pulling it off) if the

connection clip is to remain in the unit (operation on a grounded line supply).
The warning label must be removed together with the connection clip if the unit is

operated on a non-grounded line supply (IT system).
(→ See the following section titled "Connecting the Cabinet Modules to ungrounded
line supplies (IT system)"
8 The cables must be properly connected with the required torque to the terminals
provided.
The maximum permissible cable lengths between the Motor Module and the motor
must be observed depending on the type of cable used.
(→ See the following section titled "Connecting the motor cables")
(→ See the chapter titled "Cabinet Modules", section "Motor Modules in booksize
format")
(→ See the chapter titled "Cabinet Modules", section "Motor Modules in chassis
format")
9 When connecting the braking resistor, the maximum permissible cable lengths
between Central Braking Module and the associated braking resistor must be
observed.
The thermal contact of the braking resistor must be wired up and its signal evaluated
by the Control Unit or the control.
(→ See the chapter titled "Cabinet Modules", section "Central Braking Module")
10 When connecting the braking resistor, the maximum permissible cable lengths
between the Braking Module (options L61/L62, L64/L65) and the associated braking
resistor must be observed.
The resistor is connected at terminals R1 and R2 on the Braking Module.
The thermal contact of the braking resistor must be wired up and its signal evaluated
by the controller.
(→ See the chapter titled "Options", section "L61/L62, L64/L65, braking units")
11 With a parallel connection of Motor Modules in chassis format and connection to a
motor with a single-winding system, it is essential either to observe the specified
minimum cable lengths or to install a motor reactor (option L08).
(→ See the chapter titled "Cabinet Modules", section "Motor Modules in chassis
format")
12 The DC coupling – including the pre-charging circuit of the associated DC link
capacitance (Option L37) – must be connected properly and all the fuses must be
checked to ensure that they are secure.
The digital signal for pulse inhibit must be properly wired and parameterized.
(→ See the chapter titled "Options" under "L37, "DC interface including pre-charging
circuit of the associated DC link capacitance" in section "Commissioning the DC
interface")
13 The cable shields must be properly applied.
14 The circuit breaker's tripping current must be set in accordance with the specific plant
conditions.
(→ See the chapter titled "Cabinet Modules", section "Line Connection Modules")
66
Applicable?/Completed?
Cabinet Modules
Manual, 03/2013, A5E03263538A