Advanced commissioning
6.10 Selecting physical units
Converter with the control units CU240D-2
146
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
6.9.2
Further information
Application description for the free function blocks
Further information is provided on the Internet:
FAQ (
http://support.automation.siemens.com/WW/view/en/85168215
6.10
Selecting physical units
6.10.1
Motor standard
Selection options and parameters involved
The inverter represents the motor data corresponding to motor standard IEC or NEMA in
different system units: SI units or US units.
Table 6- 15 Parameters involved when selecting the motor standard
Parame-
ter
Designation
Motor standard IEC/NEMA, p0100 =
0
1)
IEC motor
50 Hz, SI units
1
NEMA motor
60 Hz, US units
2
NEMA motor
60 Hz, SI units
r0206
Power Module rated power
kW
hp
kW
p0219
Braking resistor braking power
kW
hp
kW
p0307
Rated motor power
kW
hp
kW
p0316
Motor torque constant
Nm/A
lbf ft/A
Nm/A
r0333
Rated motor torque
Nm
lbf ft
Nm
p0341
Motor moment of inertia
kgm
2
lb ft
2
kgm
2
p0344
Motor weight
kg
Lb
kg
r0394
Rated motor power
kW
hp
kW
r1493
Total moment of inertia, scaled
kgm
2
lb ft
2
kgm
2
1)
Factory setting
It is only possible to change the motor standard during quick commissioning.
6.10.2
System of units
Some physical units depend on the system of units selected (SI or US), for example the
power [kW or hp] or the torque [Nm or lbf ft]. You can select in which system of units the
converter represents its physical values.