Siemens SINAMICS S120 Manual page 57

Table 4- 1 Electrical installation: Checklist
Item Activity
General information
1 For strain relief, the cables must be clamped on the cable propping bar (C-type
mounting bar).
2 When EMC-shielded cables are used, screwed glands that connect the shield to
ground with the greatest possible surface area must be provided on the motor terminal
box. In the cabinet, the cable shields must be secured to the shield buses/plates with
the fixing accessories provided to ensure proper EMC.
3 PE busbar
4 DC busbar
5 Auxiliary power supply
system
6 For Cabinet Modules not used as a transport unit, connections on the plant side must
be made according to the circuit diagram.
The open connections that are correspondingly marked must be wired up according to
the circuit diagram.
Power connections
7 When the Cabinet Modules are operated on an isolated-neutral supply system (IT
system), the integrated EMC filters must be deactivated by unscrewing a connection
clamp.
(→ See the section titled "Operating Cabinet Modules on an isolated-neutral supply
system (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")
Cabinet Modules
Manual, (GH5), 05/2010, A5E03263538A
The PE busbar between the cabinet units or transport units
must be linked.
A connection with the ground for the entire system must also
be established.
(→ See the section titled "PE busbar")
When several cabinet units or transport units are installed
side-by-side, the DC busbars must be connected to each
other by means of the jumpers provided.
(→ See the section titled "DC busbar")
The auxiliary power modules must be interconnected
between the cabinet units or transport units and supplied
with the correct voltages.
Make sure that the correct voltage is applied.
(→ See the following section titled "Auxiliary voltage supply
system")
Electrical installation
4.2 Electrical installation: Checklist
Applicable?/Completed?
57