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

Infeed
2.2 Smart Infeed
2.2.2

Extended Smart Mode

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:
● 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.
Note
Restriction
Extended Smart Mode does not work with a Smart Line Module (5 and 10 kW).
Activating the Extended Smart Mode
1. Precondition: The Smart Mode is active (p3400.0 = 1).
2. 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).
2.2.3

Smart Infeed open-loop control

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).
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Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Drive functions