Enable Logic; Line Contactor Control - Siemens SINAMICS S120 Getting Started

Selecting the operating mode for ALM
The operating mode depends on the motor voltage.
Example: The DC-link voltage must be lower in the USA. For this reason, you can switch the
mode of an Active Line Module in order to be able to use it as a Smart Line Module (Smart
Mode). You can set the operating mode in this screen form for operating voltages greater
than 415 V
1. Set one of the two operating modes:
– "Vdc non-regulated (Smart Mode)"
– "Vdc regulated (Active Mode)"
6.2.4

Enable logic

☐
You can connect several signal sources for the enables in the function view of the "Enable
logic" screen form.
Procedure
1. Interconnect the signal source via "p0840" for "OFF1 (low active)".
2. Connect the 1st signal source via "p0844" for "Instantaneous OFF (OFF2) signal source
1".
3. Connect the 2nd signal source via "p0845" for "Instantaneous OFF (OFF2) signal source
2".
4. Interconnect the signal source via "p0852" for "Enable operation".
6.2.5

Line contactor control

☐
This function allows an external line contactor to be controlled. The closing and opening of
the line contactor can be monitored by evaluating the feedback contact of the line contactor.
Getting Started, 12/2018, 6SL3097-5AG30-0BP0
(ALM).
rms
In Smart Mode, the regenerative capability is maintained, but this results in a lower
DC-link voltage compared to Active Mode. The DC-link voltage depends on the
current supply voltage.
In Active Mode, the DC-link voltage is regulated to a settable setpoint (p3510) to
produce a sinusoidal supply current (cos φ = 1). The size of the reactive current is also
regulated and can be set specifically.
"Infeed unit > Parameters > Basic parameterization > Enable logic"
"Infeed unit > Parameters > Basic parameterization > Line contactor control"
Performing basic parameterization
6.2 Infeed unit
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