1-91 Motor External Fan
Option:
Function:
[0] *
No
No external fan is required, i.e. the motor is derated at low speed.
[1]
Yes
Applies an external motor fan (external ventilation), so no derating of the motor is required at low
speed. The graph below is followed if the motor current is lower than nominal motor current (see
par. 1-24
Motor Current
). If the motor current exceeds nominal current, the operation time still
decreases as if no fan were installed.
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
Reference 1 Source
, par. 3-16
Reference 2 Source
or par. 3-17
Reference 3 Source
).
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
NB!
This parameter cannot be adjusted while the motor is running.
NB!
Digital inputs should be set to “No operation” - see par. 5-1*.
VLT
p
Automation VT Drive FC322
Programming Guide
2 Parameter Description
MG.20.W1.22 - VLT
p
is a registered Danfoss trademark
51
2
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