Siemens SINAMICS G120D CU240D-2 DP Manual page 56

2 Parameters
2.2 List of parameters
Note: The setting p0290 = 0, 2 is only practical if the load decreases with decreasing speed (e.g. for applications with
variable torque such as for pumps and fans).
Under overload conditions, the current and torque limit are reduced, and therefore the motor is braked and forbidden
speed ranges (e.g. minimum speed p1080 and suppression [skip] speeds p1091 ... p1094) can be passed through.
For p0290 = 2, 3, 12, 13, the I2t overload detection of the power unit does not influence the response "Reduce pulse
frequency".
When the motor data identification routine is selected, p0290 cannot be changed.
For short-circuit/ground fault detection, when the test pulse evaluation is active via p1901 "Test pulse evaluation
configuration", the pulse frequency at the instant of switch on is briefly reduced.
p0292[0...1] Power unit temperature alarm threshold / PU T_alrm thresh
Access level: 3
Can be changed: U, T
Unit group: -
Min
0 [°C]
Description: Sets the alarm threshold for power unit overtemperatures. The value is set as a difference to the tripping (shutdown)
temperature.
Drive:
If this threshold is exceeded, an overload alarm is generated and the system responds as parameterized in p0290.
Infeed:
When the threshold value is exceeded, only an overload alarm is output.
Index: [0] = Heat sink temperature
[1] = Power semiconductor (chip) temperature
Dependency: Refer to: r0037, p0290
Refer to: A05000
p0294 Power unit alarm with I2t overload / PU I2t alrm thresh
Access level: 4
Can be changed: U, T
Unit group: -
Min
10.0 [%]
Description: Sets the alarm threshold for the I2t power unit overload.
If this threshold is exceeded, an overload alarm is generated and the system responds as parameterized in p0290.
Dependency: Refer to: r0036, p0290
Refer to: A07805
Note: The I2t fault threshold is 100 %. If this value is exceeded, fault F30005 is output.
p0295 Fan run-on time / Fan run-on time
Access level: 3
Can be changed: U, T
Unit group: -
Min
0 [s]
Description: Sets the fan run-on time after the pulses for the power unit have been canceled.
Note: - Under certain circumstances, the fan can continue to run for longer than was set (e.g. as a result of the excessively
high heat sink temperature).
- For values less than 1 s, a 1 s run on time for the fan is active.
56
Calculated: -
Scaling: -
Unit selection: -
Max
25 [°C]
Calculated: -
Scaling: -
Unit selection: -
Max
100.0 [%]
Calculated: -
Scaling: -
Unit selection: -
Max
600 [s]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
[0] 5 [°C]
[1] 15 [°C]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 8021
Factory setting
95.0 [%]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
0 [s]
SINAMICS G120D
List Manual (LH14), 01/2016, A5E33842313