Setting Of Device Supply Voltage; Units; Unit Group And Unit Selection - Siemens SINAMICS G220 Operating Instructions Manual

14.11.2

Setting of device supply voltage

Overview
The device supply voltage is set using parameter p0210.
The device supply voltage value corresponds to the rms value of the rated phase-to-phase
grid voltage.
Description of function
The device supply voltage value affects the following:
• Switch-on threshold for the braking resistor
• Activation thresholds of the Vdc_max and Vdc_min control
• Selection of the rated values of the power unit
The setting of the parameter determines whether the power unit is operated in the lower or
upper voltage range.
• Power failure monitoring
14.11.3

Units

14.11.3.1

Unit group and unit selection

Overview
Some physical units of the converter depend on the system of units selected (SI or US).
For example, power can be specified in kW or hp and torque in Nm or lbf ft. The system of
units can be selected.
Description of function
Depending on the selection of the standard, a different unit is shown for the performance data
of the converter and motor. Therefore, the unit is switched for some parameters.
The "Unit group" and "Unit selection" information in the parameter list constitutes additional
information of parameters for which a unit changeover is possible.
The "Unit selection" shows for which parameter the unit is changed.
The units for the different standards are stored in unit groups.
Example:
Unit group: 14_6, unit selection: p0100
The parameter belongs to the unit group 14_6 and the unit is switched over via p0100.
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
Functions
14.11 Drive functions
577