Device Rated Direct Current Field / Device If_Rated; Device Rated Line-Side Voltage Field / V_Rated Field; Power Unit I2T Monitoring Response / Pu I2T Mon Resp - Siemens SINAMICS DCM List Manual

r50073[0...1]

Device rated direct current field / Device If_rated

DC_CTRL Can be changed: -
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
- [A]
Description: Displays the device rated direct current (field).
Index: [0] = Device rated direct current field
[1] = Reduced rated direct current field
Note: When using an external field device (p50084 > 20) the rated device DC field current is taken from the value set in
p51838.
Re index 0:
Device rated direct current (field) as indicated on the device's nameplate (output direct current at power connections
3C and 3D).
Re index 1:
Actual device rated direct current (field) according to the setting in parameter p50076[1].
r50074

Device rated line-side voltage field / V_rated field

DC_CTRL Can be changed: -
Data type: FloatingPoint32
P-Group: -
Not for motor type: -
Min
- [Vrms]
Description: Displays the device rated line-side voltage for the field as indicated on the device's nameplate.
p50075

Power unit I2t monitoring response / PU I2t mon resp

DC_CTRL Can be changed: U, T
Data type: Integer16
P-Group: -
Not for motor type: -
Min
0
Description: Sets the response for I2t monitoring of the power unit.
Value: 0:
1:
2:
Note: If value = 0:
Dynamic overload capability is not permissible. The armature current setpoint (r52133) is limited to p50077 *
r50072[1].
A value of 0 can only be set, if p50067 = 1.
If value = 1:
Dynamic overload capability is permissible. As long as the calculated temperature rise of the thyristors does not
exceed the permissible value, the armature current setpoint is limited to the value p50077 * r50072[1] * 180%.
If the permissible value is exceeded, the device will protect itself by reducing the current limit to p50077 * r50072[1].
Alarm A60039 is triggered at the same time.
The armature current setpoint limit will only be increased back to the value p50077 * r50072[1] * 180% and alarm
A60039 will only disappear once the calculated temperature rise of the thyristors falls back below the permissible
value and the armature current setpoint is less than the device rated current r50072[1].
If value = 2:
Dynamic overload capability is permissible. If the calculated temperature rise of the thyristors exceeds the
permissible value, the drive will be shut down with fault F60139.
SINAMICS DCM
List Manual (LH8), 02/2015, 6RX1800-0ED76
Dynamic overload not permitted
Dynamic overload possible, A60039
Dynamic overload possible, F60139
Calculated: -
Dyn. index: -
Unit group: -
Scaling: -
Max
- [A]
Calculated: -
Dyn. index: -
Unit group: -
Scaling: -
Max
- [Vrms]
Calculated: -
Dyn. index: -
Unit group: -
Scaling: -
Max
2
2 Parameters
2.2 List of parameters
Access level: 1
Func. diagram: 6900, 6905,
6910, 6912, 6960, 8044
Unit selection: -
Expert list: 1
Factory setting
- [A]
Access level: 1
Func. diagram: 6960
Unit selection: -
Expert list: 1
Factory setting
- [Vrms]
Access level: 2
Func. diagram: 8042
Unit selection: -
Expert list: 1
Factory setting
0
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