1-81 Min Speed for Function at Stop [RPM]
Range:
Function:
3. RPM*
[0 - 600 RPM]
Set the speed at which to activate par.1-80
1-82 Min Speed for Function at Stop [Hz]
Range:
Function:
0.1 Hz*
[0.0 - 20.0 Hz]
Set the output frequency at which to activate par.1-80
1-86 Compressor Min. Speed for Trip [rpm]
Range:
Function:
0 rpm*
[0.0 - par. 1-77 minus 100 rpm]
When “High Starting Torque” is activated by setting of par. 1-77 then a protection functionality is
also enabled to prevent the application from running below minimum motor speed e.g. when in
current limit.
If the speed at any time after the start (or during a stop) falls below the value in the parameter,
the drive will trip with an alarm [A49] Speed Limit.
Function at stop
.
1-87 Compressor Min. Speed for Trip [Hz]
Range:
Function:
0 Hz*
[0.0 - par. 1-78 minus ??? Hz]
When “High Starting Torque” is activated by setting of par. 1-77 then a protection functionality is
also enabled to prevent the application from running below minimum motor speed e.g. when in
current limit.
If the speed at any time after the start (or during a stop) falls below the value in the parameter,
the drive will trip with an alarm [A49] Speed Limit.
Function at stop
.
3.3.8 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
•
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 cooling 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]
ETR warning 1
[4] *
ETR trip 1
[5]
ETR warning 2
[6]
ETR trip 2
[7]
ETR warning 3
[8]
ETR trip 3
[9]
ETR warning 4
[10]
ETR trip 4
3 Parameter Description
ADAP-KOOL
®
Drive Programming Guide
54
MG.11.N1.02 - VLT
®
is a registered Danfoss trademark
3