System Of Units - Siemens SINAMICS G115D Operating Instructions Manual

It is only possible to change the motor standard during quick commissioning.
Parameter
r0206
p0219
p0307
p0316
r0333
p0341
p0344
r0394
r1493
Factory setting
1)
6.13.2

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.
Options when selecting the system of units
The following options apply when selecting the system of units:
• p0505 = 1: System of units SI (factory setting)
Torque [Nm], power [kW], temperature [°C or K]
• p0505 = 2: Referred system of units/SI
Represented as [%]
• p0505 = 3: US system of units
Torque [lbf ft], power [hp], temperature [°F]
• p0505 = 4: System of units, referred/US
Represented as [%]
Special features
The values for p0505 = 2 and for p0505 = 4 - represented in the converter - are identical.
However, the reference to SI or US units is required for internal calculations and to output
physical variables.
For variables, which cannot be represented as [%], then the following applies:
p0505 = 1 ≙ p0505 = 2 and p0505 = 3 ≙ p0505 = 4.
In the case of variables whose units are identical in the SI system and US system, and which
can be displayed as a percentage, the following applies:
p0505 = 1 ≙ p0505 = 3 and p0505 = 2 ≙ p0505 = 4.
SINAMICS G115D distributed drive
Operating Instructions, 12/2020, FW V4.7 SP13, A5E48681219B-002
Designation
Power unit rated power
Braking resistor braking power
Rated motor power
Motor torque constant
Rated motor torque
Motor moment of inertia
Motor weight
Rated motor power
Total moment of inertia, scaled
Advanced commissioning
6.13 Selecting physical units
Motor standard IEC/NEMA, p0100 =
0
1)
IEC motor NEMA motor
50 Hz, SI units 60 Hz, US units
kW hp
kW hp
kW hp
Nm/A lbf ft/A
Nm lbf ft
kgm lb ft
2
kg Lb
kW hp
kgm lb ft
2
1 2
NEMA motor
60 Hz, SI units
kW
kW
kW
Nm/A
Nm
kgm
2 2
kg
kW
kgm
2 2
215