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Danfoss vlt aqua - Step 3. Activate the Automatic Motor Adaptation (AMA); Step 4. Set speed limit and ramp time

Danfoss vlt aqua
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[2] Thermistor trip Stops (trips) the frequency converter when the connected ther-
mistor in the motor reacts in the event of motor over-tempera-
ture.
The thermistor cut-out value is > 3 k.
Integrate a thermistor (PTC sensor) in the motor for winding
protection.
Motor protection can be implemented using a range of techni-
ques: PTC sensor in motor windings; mechanical thermal switch
(Klixon type); or Electronic Thermal Relay (ETR).
Using a digital input and 24 V as power supply:
Example: The frequency converter trips when the motor tem-
perature is too high.
Parameter set-up:
Set Par. 1-90
Motor Thermal Protection
to
Thermistor Trip
[2]
Set Par. 1-93
Thermistor Source
to
Digital Input 33
[6]
Using a digital input and 10 V as power supply:
Example: The frequency converter trips when the motor tem-
perature is too high.
Parameter set-up:
Set Par. 1-90
Motor Thermal Protection
to
Thermistor Trip
[2]
Set Par. 1-93
Thermistor Source
to
Digital Input 33
[6]
2. Parameter Description VLT
®
AQUA Drive Programming Guide
54
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2

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