GE AF-650 GP Programming Manual page 80

General purpose drive
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Parameter Descriptions
H-97 KTY Threshold level
Range:
Function:
80 °C
[-40 - 140 °C] Select the KTY sensor threshold level for
*
motor thermal protection.
H-98 ATEX overload interpol. points freq.
Range:
Function:
NOTICE
0.0 Hz
[0 - 1000.0
*
Hz]
Valid for AF-650 GP only.
Only visible if parameter F-10 Electronic
Overload is set to [20].
Enter the 4 frequency points [Hz] from the motor
nameplate into this array. Together with
parameter H-99 ATEX overload interpol points current, these
can be presented in Table 3.15.
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
Illustration 3.34 Example of ATEX ETR Thermal Limitation
Curve.
x-axis: f
[Hz]
m
y-axis: I
/I
x 100 [%]
m
m,n
Parameter H-98 ATEX overload
interpol. points freq.
[0]=5 Hz
[1]=15 Hz
[2]=25 Hz
[3]=50 Hz
Table 3.15 Interpolation Points
All operating points underneath the curve are allowed
continuously. Above the line, however, these are only
allowed for a limited time calculated as a function of the
overload. In the event of a machine current greater than
1.5 times the rated current, shut-down is immediate.
DET-618D
AF-650 GP™ Programming Guide
50 Hz
Parameter H-99 ATEX
overload interpol points
current
[0]=40%
[1]=80%
[2]=100%
[3]=100%
02/2016 All rights reserved.
H-99 ATEX overload interpol points current
Only visible if parameter F-10 Electronic Overload is set to [20] or
[21].
Range:
Function:
NOTICE
0 %
[0 - 100 %]
*
Valid for AF-650 GP only.
Definition of thermal limitation curve. For
example, see parameter H-98 ATEX overload
interpol. points freq.
Use the 4 current points [A] from the motor nameplate.
Calculate the values as percentage of nominal motor
current, I
/I
x 100 [%], and enter into this array.
m
m,n
Together with parameter H-98 ATEX overload interpol. points
freq., these constitute a table (f [Hz],I [%]).
NOTICE
All frequency/current limit points from the motor
nameplate or motor datasheet must be programmed.
3
3
79

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