Siemens SINAMICS S150 NEMA Operating Instructions Manual page 112

Converter cabinet units 15hp-1250hp

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Electrical installation

4.9 Additional connections

Infeed module rated one level lower (option L04)

With this option, an infeed (Active Line Module / Active Interface Module) rated one power

level lower than the Motor Module (inverter) is used.

The option is suitable for the following applications, for example:

● If the Motor Module is operated with pulse frequencies greater than the rated pulse

frequencies, thereby reducing the output power (current derating as a function of the

pulse frequency).

● If the rated power is required in regenerative mode and the system losses are covered by

the Motor Module.

● With motors that have a higher efficiency and/or a lower power factor compared to typical

standard induction motors.

● The maximum current of the Motor Module is required below the maximum power of the

unit, e.g. drives that have a high breakaway torque.

Availability

Option L04 is available for the following cabinet units:

3 AC 380 ... 480

Since the infeed is the element that limits the output power achievable when Option L04 is

used, the following constraints must be observed:

● The rated output current of the Motor Module is available only as long as the infeed

(Active Line Module) is not loaded at rated power.

● The output power is reduced proportional to the line voltage in the event of line supply

undervoltage.

● The unit should be operated with a line power factor cos φ = 1 and should only provide

the active power. An additional compensation of reactive line power is not expedient. This

operating mode with cos φ = 1 corresponds to the factory setting.

6SL3710-7LE33-1AU3

6SL3710-7LE35-0AU3

6SL3710-7LE36-1AU3

6SL3710-7LE37-5AU3

6SL3710-7LE41-0AU3

Rated output current

Operating Instructions, 11/2017, A5E36652151A

Converter cabinet units

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