Efficient Networks Siemens Sinamics S120 - Manual (Page 157)

Vector control
4.18 Simulation operation
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
157
the motor from the line supply in order to be able to carry out maintenance work on the drive
converter without incurring any down times.
Synchronizing is activated using parameter p3800 and either internal or external actual
voltage sensing is selected. For the internal actual voltage sensing (p3800 = 1), the voltage
setpoints of the electrical motor model are used for synchronizing. For the external actual
voltage sensing (p3800 = 2), the voltage is sensed using a VSM, this is connected between
the Motor Module and Motor. The voltage values must be transferred to the synchronization
via connectors r3661 and r3662.
Prerequisite
● Firmware release 2.4
● Drive object, vector/infeed with connected VSM10
● Induction motor without encoder
● Vector control
Function diagrams (see SINAMICS S List Manual)
● 7020 Synchronization
Overview of key parameters (see SINAMICS S List Manual)
● p3800 Sync-line-drive activation
● p3801 Sync-line-drive object number
● p3802 BI: Sync-line-drive enable
● r3803 CO/BO: Sync-line-drive control word
● r3804 CO: Sync-line-drive target frequency
● r3805 CO: Sync-line-drive frequency difference
● r3819 CO/BO: Status word, synchronizing
4.18 Simulation operation
4.18.1 Description
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.
Simulation mode enables you to test communication with a higher-level automation system.
If the drive is also to return actual values, note that it must be switched over to sensorless
operation during simulation mode. This means that large parts of the SINAMICS software