SINAMICS DCM
List Manual (LH8), 02/2015, 6RX1800-0ED76
387
2 Parameters
2.2 List of parameters
Description: Sets the limit value for derating factor K1 (thermal power reduction factor).
This limit value is necessary for devices with option L99.
If this limit value is fallen below, then an appropriate alarm is output.
Dependency: Refer to: A60082
Note: The derating factor K1 should be taken from the following reference:
SINAMICS DCM Operating Instructions - Chapter "Sensor for ambient or air intake temperature"
Description: Load class setting.
Dependent upon the selected load class, the device's rated direct current is reduced to a value which will vary
according to power unit and load class.
The current value of the device's rated direct current is displayed via r50072[1].
Value: 1: DC I
2: DC II
3: DC III
4: DC IV
5: US rating
Note: If the device's rated direct current is also reduced via p50076[0], the smaller of the two values will be applied.
If p50067 is set to a value > 1, you must ensure that the "dynamic overload capability of the power unit" is enabled (in
other words, a value > 0 must be set in p50075).
The device does not check for compliance with the load class set in p50067. If the power unit is able to tolerate it, the
device can run at overload for longer than is permitted by the load class.
The actual permissible overload duration for each power unit is always longer than the overload duration permitted by
the load class. The device checks for compliance with the overload duration actually permitted by the power unit.
Description: Displays the options according to the power unit's nameplate.
Note: The individual digits of the number are displayed in ASCII code in the indices.
An ASCII table (excerpt) can be found, for example, in the appendix to the List Manual.
p50066 Power unit I2t monitoring derating factor K1 limit value / PU fact K1 lim val
DC_CTRL Can be changed: T Calculated: - Access level: 2
Data type: FloatingPoint32 Dyn. index: - Func. diagram: 8042
P-Group: - Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
0.50 1.00 0.50
p50067 Load class / Load class
DC_CTRL Can be changed: C2(1), T Calculated: - Access level: 1
Data type: Integer16 Dyn. index: - Func. diagram: 6960
P-Group: - Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
1 5 1
r50068[0...95] Power unit nameplate options / PU options
DC_CTRL Can be changed: - Calculated: - Access level: 1
Data type: Unsigned8 Dyn. index: - Func. diagram: 6960
P-Group: - Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
- - -
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