Selecting The System Of Units - Siemens SIMATIC ET 200pro Series Operating Instructions Manual

Advanced commissioning
7.6 Selecting physical units
Setting the motor standard using p0100 is part of quick commissioning.
Table 7- 12
Parame-
ter
r0206
p0219
p0307
p0316
r0333
p0341
p0344
r0394
r1493
Factory setting
1)
7.6.2

Selecting the 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.
108
Parameters involved when selecting the motor standard
Designation
Power Module 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
Motor standard IEC/NEMA, p0100 =
0
1)
IEC motor NEMA motor
50 Hz, SI units 60 Hz, US units
kW
kW
kW
Nm/A
Nm
kgm
2
kg
kW
kgm
2
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257324B AE
1 2
NEMA motor
60 Hz, SI units
hp kW
hp kW
hp kW
lbf ft/A Nm/A
lbf ft Nm
lb ft kgm
2 2
Lb kg
hp kW
lb ft kgm
2 2
SIMATIC ET 200pro FC-2 converter