Danfoss VLT FC 100 Series Programming Guide

Using an analog input and 10 V as power supply:
Example: The frequency converter trips when the motor temperature is too high.
Parameter set-up:
Set Par. 1-90
Motor Thermal Protection to Thermistor Trip [2]
Set Par. 1-93
Thermistor Source to Analog Input 54 [2]
Do not select a reference source.
Input
Digital/analog
Supply Voltage
Volt
Threshold
Cut-out Values
Digital 24 V < 6.6 kΩ - > 10.8 kΩ
Digital 10 V < 800Ω - > 2.7 kΩ
Analog 10 V < 3.0 kΩ - > 3.0 kΩ
NB!
Check that the chosen supply voltage follows the specification of the used thermistor element.
[3] ETR warning 1 ETR Warning 1-4 , activate a warning on the display when the motor is overloaded.
[4]
*
ETR trip 1 ETR Trip 1-4 trip the frequency converter when the motor is overloaded.
Programme a warning signal via one of the digital outputs. The signal appears in the event of a warning and if
the frequency converter trips (thermal warning).
[5] ETR warning 2 See [3]
[6] ETR trip 2 See [4]
[7] ETR warning 3 See [3]
3. Parameter Description VLT
®
HVAC Drive Programming Guide
48 MG.11.C5.02 - VLT
®
is a registered Danfoss trademark
3

Danfoss VLT FC 100 Series Specifications

General

Brand	Danfoss
Model	VLT FC 100 Series
Category	DC Drives
Language	English