Thermistor Resource - Danfoss VLT FC 51 Series Programming Manual

4. Parameter Descriptions
[2]
[3]
[4]
4

1-93 Thermistor Resource

Option:
[0]
[1]
[6]
26
Thermistor Trip
ETR Warning
ETR Trip
* None
Analog Input 53
Digital input 29
MG.02.C2.02 - VLT
A thermistor connected to either digital or analog input gives an
alarm and makes the frequency converter trip if upper limit of
motor temperature range is exceeded, (see par. 1-93,
tor Resource .
If calculated upper limit of motor temperature range is excee-
ded, a warning occurs.
If calculated upper limit of motor temperature range is excee-
ded, an alarm occurs and frequency converter trips.
Function:
Select the thermistor input terminal.
No thermistor is connected.
Connect thermistor to analog input terminal 53.
NB!
Analog input 53 cannot be selected for other pur-
poses when selected as thermistor resource.
Connect thermistor to digital input terminal 29.
While this input functions as thermistor input, it will not respond
to the function chosen in par. 5-13,
of par. 5-13 remains however unchanged in parameter database
while function is inactive.
Input Digital/ Supply Voltage
Analog
Digital 10 V
Analog 10 V
® is a registered Danfoss trademark
VLT Micro Drive FC 51
Thermis-
Digital Input 29
. The value
Threshold Cut-out
Values
<800 ohm - >2.9k ohm
<800 ohm - >2.9k ohm