ABB ACS880 Firmware Manual page 541

No. Name / Range /
Selection
79.35 Recovery acc time
0.00 ... 30000.00 s
79.36 Recovery dec time
0.00 ... 30000.00 s
79.37 Recovery attempt
limit
1...100
79.40 Overload protection
enable
Not selected
Selected
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
DIO2
ESP CW bit 8
Other [bit]
79.41 Overload limit type
Fixed limit
Linear
Description
Defines acceleration time setting used when URT
recovery sequence is active.
Recovery acceleration time.
Defines deceleration time setting used when URT
recovery sequence is active.
Recovery deceleration time.
Defines the number of underload ride through recovery
attempts.
Recovery attempt limit.
Defines source for overload protection enable signal.
For further information, see Overload recovery
sequence.
Overload protection enable function is not selected.
Overload protection enable function is selected.
Digital input DI1 (10.2 DI delayed
Digital input DI2 (10.2 DI delayed
Digital input DI3 (10.2 DI delayed
Digital input DI4 (10.2 DI delayed
Digital input DI5 (10.2 DI delayed
Digital input DI6 (10.2 DI delayed
Digital input/output DIO1
0).
Digital input/output DIO2
1).
Parameter 74.1 ESP control word (page
controls enable/disable status of the function.
See Terms and abbreviations (page
Selects the type of limit used for overload 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 is a constant value for all the speeds.
Overload limit is calculated by formula:
I = I * (F / F )
lim set act max
Where,
I = 79.90 Overload actual limit
lim
I = 79.43 Overload limit
set
F = 79.09 Load limit speed scale
max
F = Actual speed
act
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
(11.2 DIO delayed status, bit
(11.2 DIO delayed status, bit
519), bit 8 status
169).
Parameters 541
Def / Type
FbEq 16b / 32b
30.00 s / real32
1 = 1 s / 100 = 1 s
30.00 s / real32
1 = 1 s / 100 = 1 s
- / real32
1 = 1 / -
ESP CW bit 8 / unit32
0
1
2
3
4
5
6
7
10
11
12
Fixed limit / unit32
0
1