Danfoss iC2, Инструкция по применению

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Application Guide | iC2-Micro Frequency Converters
Using an analog 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 [2] Analog Input 34 .
+
24
V
O
U
T
+
10
V
O
U
T
D
I1
D
I2
D
IO
D
I3
D
I4
A
O
1
A
I1
A
I2
G
N
D
G
N
D
12 13 14 15 17 18 20 31 32 33 34 35
e3
0b
k1
77
.1
0
R
OFF
ON
<800 Ω >2.9 kΩ
Figure 74: PTC Thermistor Connection - Analog Input
Table 63: Threshold Cut Out Values
Input digital/analog Supply voltage Threshold cut out values
Digital 10 V <800 Ω - 2.9 kΩ
Analog 10 V <800 Ω - 2.9 kΩ
NOTICE
Check that the selected supply voltage follows the specification of the used thermistor element.
P 4.6.8 Thermistor Source
Select the input at which the thermistor (PTC sensor) should be connected. When using an analog input, the same analog input cannot
be used for any other purpose such as reference or feedback source.
Default value:
0 [None]
Parameter type:
Selection
Parameter
number:
193
Unit:
–
Data type:
enum
Access type:
Read/Write
Selection number Selection name
0 None
1 Analog Input 33
2 Analog Input 34
3 Digital Input 13
4 Digital Input 14
6 Digital Input 18
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