Danfoss VLT FC 100 Series Programming Manual page 46

3. Parameter Description
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.
3
1-86 Trip Speed [RPM]
Range:
*
0 [0 to Motor Speed High limit (par.
4-13)]
NB!
This parameter is only available if
1-87 Trip Speed [Hz]
Range:
*
0 [0 to Motor Speed High limit (par.
4-14)]
NB!
This parameter is only available if
3.3.9. 1-9* Motor Temperature
Parameters for setting the temperature protection features for the motor.
1-90 Motor Thermal Protection
Option:
[0] No protection
[1] Thermistor warning
[2] Thermistor trip
46
Function:
Set the desired motor speed for trip limit.
If the Trip Speed is set to 0, the function is not active.
par. 0-02 Motor Speed Unit
Function:
If the Trip Speed is set to 0, the function is not active.
par. 0-02 Motor Speed Unit
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
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
frequency f . The calculations estimate the need for a lower load at lower speed due to less cool-
M,N
ing from the fan incorporated in the motor.
If the motor is continuously overloaded and no warning or trip of frequency converter is wanted.
Activates a warning when the connected thermistor in the motor reacts in the event of motor over-temperature.
Stops (trips) the frequency converter when the connected thermistor in the motor reacts in the event of motor
over-temperature.
MG.11.C5.02 - VLT ® is a registered Danfoss trademark
®
VLT HVAC Drive Programming Guide
is set to [RPM].
Set the desired motor speed for trip limit.
is set to [Hz].
Thermistor
and the rated motor
M,N