1.2
1.0
1.4
30
10
20
100
60
40
50
1.8
1.6
2.0
2000
500
200
400
300
1000
600
t [s]
175ZA052.11
fOUT = 0.2 x f M,N
fOUT = 2 x f M,N
fOUT = 1 x f M,N
IMN
IM
Figure 6.9
WARNING
In order to maintain PELV, all connections made to the
control terminals must be PELV, e.g., thermistor must be
reinforced/double-insulated.
NOTICE!
Danfoss recommends using 24 V DC as thermistor supply
voltage.
NOTICE!
The ETR timer function does not work when
parameter 1-10 Motor Construction
= [1] PM, non-salient
SPM.
NOTICE!
For correct operation of ETR function, setting in
parameter 1-03 Torque Characteristics
must fit the
application (see description of
).
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
parameter 3-15 Reference 1 Source
parameter 3-16 Reference 2 Source
or
parameter 3-17 Reference 3 Source
).
When using MCB 112, 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
NOTICE!
This parameter cannot be adjusted while the motor is
running.
NOTICE!
Digital input should be set to
[0] PNP - Active at 24 V
in
parameter 5-00 Digital I/O Mode
.
2-00 DC Hold/Preheat Current
Range:
Function:
50 %
*
[ 0 - 160 %]
NOTICE!
Parameter 2-00 DC Hold/Preheat Current
will not have
effect when
parameter 1-10 Motor Construction
= [1] PM,
non-salient SPM.
NOTICE!
The maximum value depends on the rated motor
current.
Avoid 100% current for too long. It may damage the
motor.
How to Program
VLT
®
HVAC Drive FC 102
90
Danfoss A/S © 08/2014 All rights reserved.
MG11F522
6
6
Summary of Contents for VLT HVAC Drive FC 102
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