ABB ACS880 Firmware Manual page 312

312 Parameters
No. Name / Range /
Selection
0.000 ... 1800.000 s
23.13 Deceleration time 1
0.000 ... 1800.000 s
23.14 Acceleration time 2
0.000 ... 1800.000 s
23.15 Deceleration time 2
0.000 ... 1800.000 s
Description
Acceleration time 1.
Defines deceleration time 1 as the time required for
the speed to change from the speed defined by
parameter 46.1 Speed scaling
30.12 Maximum speed) to zero.
If the speed reference decreases slower than the set
deceleration rate, the motor speed will follow the
reference.
If the reference changes faster than the set
deceleration rate, the motor speed will follow the
deceleration rate.
If the deceleration rate is set too short, the drive will
automatically prolong the deceleration in order not to
exceed drive torque limits (or not to exceed a safe DC
link voltage). If there is any doubt about the
deceleration time being too short, ensure that DC
overvoltage control is on (parameter
control).
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.
Deceleration time 2.
(not from parameter
30.30 Overvoltage
23.12
23.13
Def / Type
FbEq 16b / 32b
10 = 1 s / 1000 = 1 s
20.000 s / real32
10 = 1 s / 1000 = 1 s
60.000 s / real32
10 = 1 s / 1000 = 1 s
60.000 s / real32
10 = 1 s / 1000 = 1 s