Simulation Mode - Siemens SINAMICS S120 Function Manual

4.23

Simulation mode

Simulation mode allows you to simulate the drive without a connected motor and without the
DC-link voltage. In this case, it should be noted that the simulation mode can only be
activated under an actual DC-link voltage of 40 V. If the voltage is higher, simulation mode is
reset and fault message F07826 is output.
With the simulation mode, you can test the communication with a higher-level controller. If
the drive is also to return actual values, note that it must be switched over to encoderless
operation during simulation mode. This means that large parts of the SINAMICS software
(e.g. software channel, sequence control, communications, technology function, etc.) can be
tested in advance without requiring a motor.
For units with outputs of > 75 W it is recommended to test the activation of the power
semiconductors after repairs. To do so, a DC voltage < 40 V is applied to the DC link, and
the possible pulse patterns must be tested by the control software.
The simulation mode can be activated via p1272 =1.
Note
Simulation mode cannot be activated without a power unit. A power unit must be connected
via DRIVE-CLiQ.
Requirements
The following requirements must be satisfied to do this:
● Initial commissioning must be complete (default: Standard induction motors).
● The DC-link voltage must be < 40 V (observe the tolerance of the DC-link voltage
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 semiconductor with low DC-link voltage and with motor (for test
● Power unit and closed-loop control can be simulated without a connected motor.
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
sensing).
± 4 V) with fault F07826 and immediate pulse inhibit (OFF2)
purposes).
Vector control
4.23 Simulation mode
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