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1-93 Thermistor Resource
Option:
Function:
[4]
Digital input
19
[5]
Digital input
32
[6]
Digital input
33
1-94 ATEX ETR cur.lim. speed reduction
Range:
Function:
0 %
*
[0 - 100 %]
NOTICE
Valid for FC 302 only.
Only visible if
is set to
[20] ATEX ETR
.
Configure the reaction for operating in Ex-e current limit.
0%: The frequency converter does not change anything
besides issuing
warning 163, ATEX ETR cur.lim.warning.
>0%: The frequency converter issues
warning 163, ATEX ETR
cur.lim.warning
and reduces motor speed following ramp 2
(
parameter group 3-5* Ramp 2
).
Example:
Actual reference = 50 RPM
Parameter 1-94 ATEX ETR cur.lim. speed reduction
= 20%
Resulting reference = 40 RPM
1-95 Thermistor Sensor Type
Option:
Function:
NOTICE
Valid for FC 302 only.
Select the used type of thermistor sensor.
[0]
*
KTY Sensor 1 1 k
Ω
at 100
°
C (212
°
F).
[1]
KTY Sensor 2 1 k
Ω
at 25
°
C (77
°
F).
[2]
KTY Sensor 3 2 k
Ω
at 25
°
C (77
°
F).
[3]
Pt1000
1-96 Thermistor Sensor Resource
Option:
Function:
NOTICE
Valid for FC 302 only.
Selecting analog input terminal 54 to be used
as thermistor sensor input. Terminal 54 cannot
be selected as thermistor source if otherwise
used as reference (see
to
parameter 3-17 Reference Resource
).
1-96 Thermistor Sensor Resource
Option:
Function:
NOTICE
Connection of thermistor sensor between
terminals 54 and 55 (GND). See
[0]
*
None
[2]
Analog
Input 54
1-97 Thermistor Threshold level
Range:
Function:
80 °C
*
[ -40 - 220 °C] Select the thermistor sensor threshold
level for motor thermal protection.
1-98 ATEX ETR interpol. points freq.
Range:
Function:
Size related
*
[ 0 - 1000.0
Hz]
NOTICE
Valid for FC 302 only.
Only visible if
is set to [20].
Enter the 4 frequency points [Hz] from the motor
nameplate into this array.
shows the example of
frequency/current points.
NOTICE
All frequency/current limit points from the motor
nameplate or motor datasheet must be programmed.
1 0 0 %
8 0 %
4 0 %
5 Hz
15 Hz
25 Hz
50 Hz
130BB909.10
Illustration 3.18 Example of ATEX ETR Thermal Limitation
Curve
x-axis: f
m
[Hz]
y-axis: I
m
/I
m,n
x 100 [%]
Parameter Descriptions
VLT
®
AutomationDrive FC 301/302
66
Danfoss A/S © 10/2018 All rights reserved.
MG33MP02
3
3
Содержание VLT AutomationDrive FC 302
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