Changing Over The Unit System - Siemens Sinamics G120P Operating Instructions Manual

Functions
7.7 Application-specific functions
The parameters listed below are affected by the switchover.
Table 7- 25
P no.
r0206
p0219
p0307
p0316
r0333
p0341
p0344
r1493
r1969
*) Factory setting
7.7.1.2

Changing over the unit system

You change over the unit system using p0505. The following selection options are available:
● p0505 = 1: SI units (factory setting)
● p0505 = 2: SI units or % relative to SI units
● p0505 = 3: US units
● p0505 = 4: US units or % relative to US units
Note
Special features
The percentage values for p0505 = 2 and for p0505 = 4 are identical. For internal calculation
and for the output of physical variables, it is, however, important whether the conversion is
made to SI or US units.
In the case of variables for which switchover to % is not possible, 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.
Note
Parameters affected by switchover
The parameters affected by switching over the unit system are grouped according to unit. An
overview of the unit groups and the possible units can be found in the List Manual in the
Section "Unit group and unit selection".
376
Variables affected by switching over the motor standard
Designation
Rated power module power
Braking resistor braking power
Rated motor power
Motor torque constant
Rated motor torque
Motor moment of inertia
Motor weight (for thermal motor type)
CO: Total moment of inertia, scaled
Speed_cont_opt moment of inertia determined
Unit for p0100 =
0 * 1
)
kW hp
kW hp
kW hp
Nm/A lbf ft/A
Nm lbf ft
kg m lb ft
2 2
kg lb
kg m lb ft
2 2
kg m lb ft
2 2
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
2
kW
kW
kW
Nm/A
Nm
kg m
2
kg
kg m
2
kg m
2