NB!
To achieve the highest accuracy with the slip compensation, an Automatic Motor Adaptation (AMA) should be performed. To be enabled
in parameter 1-29.
NB!
Trip will not be active when using a normal stop- or coast command.
1-86 Trip Speed [RPM]
Range: Function:
Set the desired motor speed for trip limit.
0
*
[0 to Motor Speed High limit (par.
4-13)]
If the Trip Speed is set to 0, the function is not active.
NB!
This parameter is only available if
par. 0-02 Motor Speed Unit
is set to [RPM].
Set the desired motor speed for trip limit.
1-87 Trip Speed [Hz]
Range: Function:
0
*
[0 to Motor Speed High limit (par.
4-14)]
If the Trip Speed is set to 0, the function is not active.
NB!
This parameter is only available if
par. 0-02 Motor Speed Unit
is set to [Hz].
3.3.9. 1-9* Motor Temperature
Parameters for setting the temperature protection features for the motor.
1-90 Motor Thermal Protection
Option: Function:
The frequency converter determines the motor temperature for motor protection in two different ways:
• Via a thermistor sensor connected to one of the analog or digital inputs (par. 1-93
Thermistor
Source
).
• Via calculation (ETR = Electronic Thermal Relay) of the thermal load, based on the actual load and
time. The calculated thermal load is compared with the rated motor current I
M,N
and the rated motor
frequency f
M,N
. The calculations estimate the need for a lower load at lower speed due to less cool-
ing from the fan incorporated in the motor.
[0] No protection If the motor is continuously overloaded and no warning or trip of frequency converter is wanted.
[1] Thermistor warning Activates a warning when the connected thermistor in the motor reacts in the event of motor over-temperature.
[2] Thermistor trip Stops (trips) the frequency converter when the connected thermistor in the motor reacts in the event of motor
over-temperature.
3. Parameter Description VLT
®
HVAC Drive Programming Guide
46
MG.11.C5.02 - VLT
®
is a registered Danfoss trademark
3
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