Danfoss VLT HVAC Basic Drive FC 101 Design Manual page 47

Product Overview
BUS TER.
OFF ON
61 68 69 18 19 27 29 42 45 50 53 54
0/4-20mA A OUT / DIG OUT
OFF
ON
<800 Ω
Illustration 3.58 Digital Input/10 V Power Supply
Example with analog input and 10 V power supply
The frequency converter trips when the motor temperature
is too high.
Parameter set-up:
Set parameter 1-90 Motor Thermal Protection to [2]
Thermistor Trip.
Set parameter 1-93 Thermistor Source to [1] Analog Input 53.
NOTICE
Do not set Analog Input 54 as reference source.
MG18C702
Design Guide
0/4-20mA A OUT / DIG OUT
12 20 55
COM A IN
COM DIG IN
R
>2.9 kΩ
Danfoss A/S © 04/2016 All rights reserved.
BUS TER.
OFF ON
61 68 69 18 19 27 29 42 45 50 53 54
0/4-20mA A OUT / DIG OUT
OFF
ON
<3.0 k Ω
>2.9k
Illustration 3.59 Analog Input/10 V Power Supply
Supply voltage
Input
[V]
Digital 10
Analog 10
Table 3.18 Supply Voltage
NOTICE
Make sure that the selected supply voltage follows the
specification of the used thermistor element.
ETR is activated in parameter 1-90 Motor Thermal Protection.
0/4-20mA A OUT / DIG OUT
12 20 55
COM A IN
COM DIG IN
R
Ω
Threshold
cutout values [Ω]
<800⇒2.9 k
<800⇒2.9 k
45
3 3