Siemens SINAMICS S120 Function Manual page 36

Hide thumbs Also See for SINAMICS S120:

Table of Contents

3.1 Active Infeed

The DC link voltage setpoint (p3510) is preset depending on the supply voltage (p0210) using

the equation p3510 = 1.5 · p0210.

Commission an ALM Chassis

The device supply voltage (p0210) must be parameterized during commissioning. The

necessary line filter (p0220) is preset.

When it is first switched on with a new or modified network, an automatic controller setting

should be implemented using the supply/DC-link identification routine (p3410).

While the identification routine is running, it is not permissible that other loads are switched-in/

switched-out.

In a supply system without regenerative feedback capability (e.g. generators), regenerative

operation must be inhibited via the binector input p3533.

Special features of Active Interface Modules the format Chassis-2

Active Line Modules of the Chassis-2 format (ALM Chassis-2) works in a way comparable to the

ALMs of the Chassis format with a higher and adjustable pulse frequency. To further minimize

phase effects on the system, the upstream Active Interface Module of the Chassis-2 format

(AIM Chassis-2) has been redesigned.

The pre-charging and main contactor must be provided externally for Chassis-2 AIMs. The

control and feedback of the switches required for operation are implemented and monitored

using the software of the Chassis-2 ALM. The necessary signal interconnections are described

in the following manual:

● SINAMICS S120 Device manual for air-cooled Chassis power unit

Opening and closing times of the contacts being used can be adjusted in parameter p0255

(power unit contactor monitoring time). In the case of parallel connection of Chassis-2 ALMs,

the following constraints apply:

● The signals must be connected to each Chassis-2 ALM. This is the only way to achieve a

valid operating mode for the parallel connection.

Setting the DC link voltage

Overheating of the components

An excessively high step-up factor for Active Line Modules can overheat and destroy

● In parameter p3508 (step-up factor), enter the value "2.00" at a maximum.

Function Manual, 06/2019, 6SL3097-5AB00-0BP2

Drive functions