430 Parameters
79.02 Load curve speed
point 2
Defines speed point 2 for the load curve. 0.00
0.00...1200.00 % Load curve speed point 2. 10 = 1%
79.03 Load curve speed
point 3
Defines speed point 3 for the load curve. 0.00
0.00...1200.00 % Load curve speed point 3. 10 = 1%
79.04 Load curve speed
point 4
Defines speed point 4 for the load curve. 0.00
0.00...1200.00 % Load curve speed point 4. 10 = 1%
79.05 Load curve speed
point 5
Defines speed point 5 for the load curve. 0.00
0.00...1200.00 % Load curve speed point 5. 10 = 1%
79.09 Load limit speed
scale
Defines speed scale value for the corresponding underload
and overload limit calculation in case user chooses to use
Linear or Quadratic predefined load curve shape.
This can be used together with parameter 79.13 Underload
limit and 79.43 Overload limit.
100.00
0.00...1200.00 % Load limit speed scale. 10 = 1%
79.10 Underload
protection enable
Defines source for underload protection enable signal.
For further information, see section Underload ride through
recovery sequence (page 54).
ESP CW bit 7
Not selected Underload protection enable signal is inactive. 0
Selected Underload protection enable signal is active. 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 3
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 4
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 5
DI5 Digital input DI5 (10.02 DI delayed status, bit 4). 6
DI6 Digital input DI6 (10.02 DI delayed status, bit 5). 7
DIO1 Digital input/output DIO1 (11.02 DIO delayed status, bit 0). 8
DIO2 Digital input/output DIO2 (11.02 DIO delayed status, bit 1). 9
ESP CW bit 7 Parameter 74.01 ESP control word, bit-7 status controls
enable/disable status of the function.
10
Other Source selection (see Terms and abbreviations on page 148). -
79.11 Underload limit type Selects the type of limit used for underload supervision.
The user has option to choose either a fixed limit, a curve of a
predefined shape or plot a custom curve as a function of
motor speed.
Fixed limit
Fixed limit Fixed limit is a constant value for all the speeds.
Linear Underload limit is calculating by formula.
I
lim
= I
set
* (F
act
/ F
max
)
Where,
I
lim
= 79.80 Underload actual limit
I
set
= 79.13 Underload limit
F
max
= 79.09 Load limit speed scale
F
act
= Actual speed
No. Name/Value Description Def/FbEq16
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