Siemens CU240B-2 Parameter Manual page 25

r0033 Torque utilization smoothed / M_util smooth
Access level: 4
Can be changed: -
Units group: -
Min
- [%]
Description: Displays the smoothed torque utilization as a percentage.
The torque utilization is obtained from the required smoothed torque in reference to the torque limit, scaled using
p2196.
Dependency: This parameter is only available for vector control. For U/f control r0033 = 0 %.
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The torque utilization is available smoothed (r0033) and unsmoothed (r0081).
For M_set total (r0079) > 0, the following applies:
- Required torque = M_set total
- Actual torque limit = M_max upper effective (r1538)
For M_set total (r0079) <= 0, the following applies:
- Required torque = - M_set total
- Actual torque limit = - M_max lower effective (r1539)
For the actual torque limit = 0, the following applies: r0033 = 100 %
For the actual torque limit < 0, the following applies: r0033 = 0 %
r0034 CO: Motor utilization / Motor utilization
Access level: 2
Can be changed: -
Units group: -
Min
- [%]
Description: Displays the motor utilization from the thermal I2t motor model.
Dependency: The motor utilization is only determined for permanent-magnet synchronous motors and if the I2t motor model is
activated.
The motor utilization is formed from the ratio between the I2t motor model temperature (minus 40 Kelvin) and the
reference value p0605 (motor overtemperature, fault threshold) - 40 Kelvin. If p0605 is reduced, r0034 increases
and the motor temperature remains the same.
Refer to: p0611, p0612, p0615
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
A value of r0034 = -200.0 % indicates an invalid display, for example, because the thermal I2t motor model was not
activated or was incorrectly parameterized.
r0035 CO: Motor temperature / Mot temp
Access level: 2
Can be changed: -
Units group: 21_1
Min
- [°C]
Description: Displays the actual temperature in the motor.
Note: For r0035 not equal to -200.0 °C, the following applies:
- this temperature display is valid.
- a KTY sensor is connected.
- for induction motors, the thermal motor model is activated (p0601 = 0).
For r0035 equal to -200.0 °C, the following applies:
- this temperature display is not valid (temperature sensor error).
- A PTC sensor or bimetallic NC contact is connected.
- for synchronous motors, the thermal motor model is activated (p0601 = 0).
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Calculated: -
Scaling: PERCENT
Unit selection: -
Max
- [%]
Calculated: -
Scaling: PERCENT
Unit selection: -
Max
- [%]
Calculated: -
Scaling: p2006
Unit selection: p0505
Max
- [°C]
Parameters
List of Parameters
Data type: FloatingPoint32
Data set: -
Factory setting
- [%]
Data type: FloatingPoint32
Data set: -
Factory setting
- [%]
Data type: FloatingPoint32
Data set: -
Factory setting
- [°C]
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