Extended Smart Mode; Smart Infeed Open-Loop Control - Siemens SINAMICS S120 Function Manual

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3.3 Smart Infeed

Extended Smart Mode

● The Smart Mode is active (p3400.0 = 1).

Function description

The operating mode "Extended Smart Mode" represents and extension of the Smart Mode, and

facilitates a higher efficiency no-load operation and partial load operation as well as a more

rugged operating behavior.

The function is characterized by the following features:

● Significantly reduced reactive power drawn in no-load operation and partial load operation.

At rated load or overload, the operating behavior is equivalent to the normal Smart Mode.

● More stable DC link voltage in no-load operation and partial load operation.

At rated load or overload, the operating behavior is equivalent to the normal Smart Mode.

● Increased degree of ruggedness with respect to brief line disturbances.

● After each POWER ON, automatic adaptation to the actual line parameters.

Restrictions

The function is not available for Smart Line Modules with 5 and 10 kW.

Activating the function

Activate the Extended Smart Mode with p3440.1 = 1.

All other adjustable parameters (p3441 and following) are appropriately preset for standard

applications, or are automatically optimized with the first operating enable (p3440.2 = 0).

The Smart Line Module can be controlled via the BICO interconnection, e.g. using terminals or

the fieldbus. The operating status is indicated on the operating display r0002. The missing

enable signals for operation (r0002 = 00) are mapped in parameter r0046. The EP terminals

(enable pulses) must be connected in accordance with the manual of the corresponding power

units. The drive unit must have been commissioned for the first time.

Acknowledging faults

Faults that are still present but the causes of which have been rectified can be acknowledged

using a 0/1 edge at the "1st acknowledge faults" signal (p2103).

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

Drive functions