In order to maintain PELV, all connections made to the control terminals must be PELV, e.g., thermistor must be reinforced/ double-
insulated.
NOTE!
Danfoss recommends using 24 VDC as thermistor supply voltage.
1-93 Thermistor Source
Option:
Function:
Select the input to which the thermistor (PTC sensor) should be connected. An analog input option
[1] or [2] cannot be selected if the analog input is already in use as a reference source (selected in
par. 3-15
or ).
When using MCB112, choice [0]
None
must always be selected.
[0] *
None
[1]
Analog input 53
[2]
Analog input 54
[3]
Digital input 18
[4]
Digital input 19
[5]
Digital input 32
[6]
Digital input 33
NOTE!
This parameter cannot be adjusted while the motor is running.
6 How to Program the Low Harmonic Drive
VLT HVAC Low Harmonic Drive Instruction
Manual
6-18
MG.16.A1.22 - VLT
®
is a registered Danfoss trademark
6