Functions
6.8 Protection functions
Parameters
P0292
Temperature monitoring for the motor
The implementation of thermal protection for the motor is accomplished using the following
types of thermal sensors:
● PTC sensor
● KTY 84 sensor
● ThermoClick sensor
● PT1000 sensor
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Description
P0290 = 0, 2:
Reduction of output frequency is only effective if the load is also reduced. This is
•
for example valid for light overload applications with a quadratic torque character-
istic as pumps or fans.
For settings P0290 = 0 or 2, the I-max controller will act upon the output current
•
limit (r0067) in case of overtemperature.
P0290 = 0:
With pulse frequencies above nominal, pulse frequency will be reduced to nomi-
•
nal immediately in the event of r0027 greater than r0067 (current limit).
P0290 = 2, 3:
The pulse frequency P1800 is reduced only if higher than 2 kHz and if the operat-
•
ing frequency is below 2 Hz.
The actual pulse frequency is displayed in parameter r1801[0] and the minimal
•
pulse frequency for reduction is displayed in r1801[1].
Inverter I
t acts upon output current and output frequency, but not on pulse fre-
•
2
quency.
A trip will always result, if the action taken does not sufficiently reduce internal tem-
peratures.
Parameterizes the alarm threshold for heatsink and module temperature monitoring
Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB
SINAMICS G110D