ABB ACS880 Firmware Manual page 292

292 Parameters
No. Name/Value
28.73 Freq deceleration
time 1
0.000 ...
1800.000 s
28.74 Freq acceleration
time 2
0.000 ...
1800.000 s
28.75 Freq deceleration
time 2
0.000 ... 1800.000 s Deceleration time 2.
28.76 Freq ramp in zero
source
Active
Inactive
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
DIO2
Other [bit]
28.77 Freq ramp hold
Active
Inactive
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
Description
Defines deceleration time 1 as the time required for the
frequency to change from the frequency defined by
parameter 46.02 Frequency scaling
30.14 Maximum frequency) to zero.
If there is any doubt about the deceleration time being too
short, ensure that DC overvoltage control
Overvoltage control) is on.
Note: If a short deceleration time is needed for a high inertia
application, the drive should be equipped with braking
equipment such as a brake chopper and brake resistor.
Deceleration time 1.
Defines acceleration time 2. See parameter
acceleration time 1.
Acceleration time 2.
Defines deceleration time 2. See parameter
deceleration time 1.
Selects a source that forces the frequency reference to zero.
0 = Force frequency reference to zero
1 = Normal operation
0.
1.
Digital input DI1 (10.02 DI delayed
Digital input DI2 (10.02 DI delayed
Digital input DI3 (10.02 DI delayed
Digital input DI4 (10.02 DI delayed
Digital input DI5 (10.02 DI delayed
Digital input DI6 (10.02 DI delayed
Digital input/output DIO1
Digital input/output DIO2
Source selection (see Terms and abbreviations
page 152).
Selects a source that forces the output of the frequency
ramp generator to actual frequency value.
0 = Force ramp output to actual frequency
1 = Normal operation
0.
1.
Digital input DI1 (10.02 DI delayed
Digital input DI2 (10.02 DI delayed
Digital input DI3 (10.02 DI delayed
Digital input DI4 (10.02 DI delayed
Digital input DI5 (10.02 DI delayed
Digital input DI6 (10.02 DI delayed
Digital input/output DIO1
(not from parameter
(30.30
28.72 Freq
28.73 Freq
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
(11.02 DIO delayed status, bit 0).
(11.02 DIO delayed status, bit 1).
on
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
(11.02 DIO delayed status, bit 0).
Def/FbEq16
20.000 s
10 = 1 s
60.000 s
10 = 1 s
60.000 s
10 = 1 s
Inactive
0
1
2
3
4
5
6
7
10
11
-
Inactive
0
1
2
3
4
5
6
7
10