Issue 01/06 parameter description, R0031 co: act. filtered torque, R0032 co: act. filtered power – Siemens 440 User Manual
Page 31
Issue 01/06
Parameter Description
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
31
r0031
CO: Act. filtered torque
Min: -
Datatype: Float Unit:
Nm
Def:
-
P-Group: CONTROL
Max: -
Displays electrical torque.
i
Z
L
L
2
3
m
sq
rd
p
R
m
M
⋅
Ψ
⋅
⋅
⋅
=
:
m
M
:
L
m
:
L
R
:
rd
Ψ
:
Z
p
:
i
sq
:
e
Motor torque
Pole pair number
Rotor flux
Rotor inductance
Magnetizing inductance
Torque-generating current
Motor counter EMF
Valid for V/f-caracteristic:
e
|
i
|
R
cos
|
i
|
u
i
s
s
2
s
sq
⋅
−
ϕ
⋅
⋅
≈
Output value will be zero at low speeds when the current injection is active (r1751.5 = 1).
Note:
The electrical torque is not the same as the mechanical torque, which can be measured on the shaft. Due to
windage and friction a part of the electrical torque is lost in the motor.
r0032
CO: Act. filtered power
Min: -
Datatype: Float Unit:
-
Def:
-
P-Group: CONTROL
Max: -
Displays motor power (power output at the motor shaft).
Motor
ω
, M
M
f
2
M
P
mech
⋅
⋅
π
⋅
=
⋅
ω
=
⇒
[Nm]
r0031
[1/min]
60
r0022
π
2
1000
1
[kW ]
r0032
⋅
⋅
⋅
⋅
=
[kW]
r0032
0.75
[hp]
r0032
⋅
=
Dependency:
Value is displayed in [kW] or [hp] depending on setting for P0100 (operation for Europe / North America).
r0035[3]
CO: Act. motor temperature
Min: -
Datatype: Float Unit:
°C
Def:
-
P-Group: MOTOR
Max: -
Displays measured motor temperature.
Index:
r0035[0] : 1st. Drive data set (DDS)
r0035[1] : 2nd. Drive data set (DDS)
r0035[2] : 3rd. Drive data set (DDS)
Level
2
Level
2
Level
2