Danfoss VLT AutomationDrive FC 302 Programming Guide

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5.2.10.1 PTC Thermistor Connection
1330
550
250
-20°C
e75ha183.11
4000
3000
R
(W)
nominal
nominal -5°C
nominal + 5°C
[°C ]
Illustration 39: PTC Profile
Using a digital input and 10 V as supply: Example: The drive trips when the motor temperature is too high.
Parameter setup:
Set parameter 1-90 Motor Thermal Protection to [2] Thermistor Trip.
Set parameter 1-93 Thermistor Source to [6] Digital Input.
PTC / Thermistor
R
OFF
ON
<800 #
+10V
e30ba152.11
>2.7 k#
12
13
18
37
32
27
19 29
3320
55
50
39
42 53 54
Illustration 40: PTC Thermistor Connection - Digital Input
Using an analog input and 10 V as supply: Example: The drive trips when the motor temperature is too high.
Parameter setup:
Set parameter 1-90 Motor Thermal Protection to [2] Thermistor Trip.
Set parameter 1-93 Thermistor Source to [2] Analog Input 54.
AU275636650261en-000101 / 130R0334 | 107Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss VLT AutomationDrive FC 302 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 302
Category	DC Drives
Language	English