ABB ACS880 Firmware Manual page 353

No. Name / Range /
Selection
-598.00 ... 598.00 Hz
28.56 Critical frequency 3
low
-598.00 ... 598.00 Hz
28.57 Critical frequency 3
high
-598.00 ... 598.00 Hz
28.71 Freq ramp set
selection
Acc/Dec time 1
Acc/Dec time 2
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
DIO2
Other [bit]
28.72 Freq acceleration
time 1
Description
High limit for critical frequency 2. For scaling, see
parameter 46.2.
Defines the low limit for critical frequency 3.
Note: This value must be less than or equal to the value
of 28.57 Critical frequency 3
Low limit for critical frequency 3. For scaling, see
parameter 46.2.
Defines the high limit for critical frequency 3.
Note: This value must be greater than or equal to the
value of 28.56 Critical frequency 3
High limit for critical frequency 3. For scaling, see
parameter 46.2.
Selects a source that switches between the two sets
of acceleration/deceleration times defined by
parameters 28.72...28.75.
0 = Acceleration time 1 and deceleration time 1 are in
force
1 = Acceleration time 2 and deceleration time 2 are in
force
0.
1.
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).
See Terms and abbreviations (page
Defines acceleration time 1 as the time required for the
frequency to change from zero to the frequency defined
by parameter 46.2 Frequency scaling
30.14 Maximum frequency).
If the reference increases faster than the set
acceleration rate, the motor will follow the acceleration
rate.
If the reference increases slower than the set
acceleration rate, the motor frequency will follow the
reference.
If the acceleration time is set too short, the drive will
automatically prolong the acceleration in order not to
exceed the drive torque limits.
high.
low.
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
169).
(not to parameter
Parameters 353
Def / Type
FbEq 16b / 32b
- / -
0.00 Hz / real32
- / -
0.00 Hz / real32
- / -
Acc/Dec time 1 /
uint32
0
1
2
3
4
5
6
7
10
11
20.000 s / real32