Siemens 440 - 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