Signal Connections - Siemens SINAMICS G150 Operating Instructions Manual

Danger to life due to dangerous electrical voltage from an external auxiliary supply
When the external auxiliary supply is connected, dangerous voltages are present in the
cabinet unit even when the main switch is open. Death or serious injury can result when live
parts are touched.
• Observe the general safety rules when working on the device.
Note
External auxiliary supply for automatic restart
An external auxiliary supply (infeed) must always be used if the automatic restart (WEA)
function is to be used with integrated EMERGENCY OFF option (L57) or EMERGENCY
STOP option (L59, L60).
Otherwise, the automatic restart function does not work.
Auxiliary infeed 230 V
The fuse must not exceed 16 A.
The connection is protected inside the cabinet with 3 A or 5 A.
Connecting
● On terminal block -X40, remove the jumpers between terminals 1 and 2 as well as 5 and 6.
● Connect the external 230 V AV supply to terminals 2 (L1) and 6 (N).
4.9

Signal connections

4.9.1 Control Unit CU320-2 DP
In the standard version, the cabinet unit contains a CU320-2 DP control unit, which handles
the communication and open-loop/closed-loop control functions.
A PROFIBUS interface is available for higher-level communication.
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
WARNING
Electrical installation
4.9 Signal connections
93