Features - Siemens Sinamics S120 Function Manual

4.23.2

Features

● Automatic deactivation with a DC link voltage greater than 40 V (measurement tolerance
● Can be activated via parameter p1272
● Deactivation of line contactor activation during simulation mode
● Activation of power semi-conductor with low DC link voltage and with motor (for test
● Power unit and closed-loop control can be simulated without a connected motor.
4.23.3 Commissioning
The simulation mode can be activated via p1272 =1. The following preconditions must be
satisfied to do this:
● Initial commissioning must be complete (default: Standard induction motors).
● The DC link voltage must be below 40 V (observe the tolerance of the DC link voltage
4.24 Redundance operation power units
Features
● Redundancy for up to 4 chassis power units
● Power unit can be deactivated via parameter (p0125)
● Power unit can be deactivated via binector input (p0895)
Description
Redundancy mode can be used so that operation can be continued in spite of the failure of
one power unit connected in parallel.
Note
Despite this redundancy circuit, the entire plant may shut down when defects develop in one
power unit (feedback effects due to absence of electrical isolation).
In order that the failed power unit can be replaced, DRIVE-CLiQ cables must be connected
in a star-type configuration - it may be necessary to use a DRIVE-CLiQ HUB Module
(DMC20 or DME20). The failed power unit must be deactivated via p0125 or via the binector
input p0895, before it is removed. When a replacement power unit has been installed it must
be activated accordingly.
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
± 4 V) with fault F07826 and immediate pulse inhibit (OFF2)
purposes).
sensing).
4.24 Redundance operation power units
Vector control
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