Siemens SINAMICS Series Operating Instructions Manual page 585

Adaptation
Table 10- 69 Parameter settings for I
Parameter
p50114 Thermal time constant
p50100 Rated armature current
p50113 Continuous-current factor
p50140 Motor I t monitoring, response
2
when starting
Advance-alarm characteristic/Shutdown characteristic
If, for example, the motor load is continuously at approximately 125% of the permissible
continuous current for the motor, alarm A60037 responds after a time constant (p50114) has
elapsed. If there is no reduction in the load, the drive is shut down when the shutdown
characteristic is reached, and error message F60137 is displayed.
Advance-alarm/shutdown times for other loads may be taken from the diagram below.
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
10.20 Thermal overload protection for the DC motor (I2t monitoring of the motor)
t monitoring
2
Data
Time constant [s] with which I
Determination of permissible continuous current for motor:
Permissible continuous current = p50100 × p50113
Sets the response when starting for the motor I
2: Start I t at zero
2
12: Start I
2
t monitoring is to operate
2
t with the saved value (factory setting)
Descriptions of functions
t monitoring:
2
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