Danfoss iC2 - Page 138

Selection number Selection name Selection description
3 ETR Warning 1 Calculates the load and activates a warning in the display when
the motor is overloaded. Program a warning signal via 1 of the
digital outputs.
4 ETR Trip 1 Calculates the load and stops (trips) the frequency converter
when the motor is overloaded. Program a warning signal via 1 of
the digital outputs. The signal appears in the event of a warning
and if the frequency converter trips (thermal warning)
22 ETR Trip - Extended Detection
1330
550
250
-20°C
e75ha183.11
4000
3000
R
(W)
nominal
nominal -5°C
nominal + 5°C
[°C]
Figure 72: PTC Profile
Using a digital input and 10 V as supply: Example: The frequency converter trips when the motor temperature is too high. Parameter
setup:
l Set P 4.6.7 Motor Thermal Protection to [2] Thermistor Trip.
l Set P 4.6.8 Thermistor Source to [6] Digital Input 18.
+24 V OUT
+10 V OUT
DI1
DI2
DIO DI3 DI4 AO1 AI1 AI2
GND
GND
12
13
14
15
17
18 20 31
32 33 34 35
e30bk176.10
R
OFF
ON
<800 Ω >2.9 kΩ
Figure 73: PTC Thermistor Connection - Digital Input
138 | Danfoss A/S © 2024.03 AB413939445838en-000301 / 130R1254
Application Guide | iC2-Micro Frequency Converters