Accel/Decel - ABB ACS800 Series Firmware Manual

No. Name/Value
21.10 ZERO SPEED DELAY
0.0...60.0 s
21.11 E-STOP COAST DLY
0...100 s

22 ACCEL/DECEL

22.01 ACC/DEC 1/2 SEL
ACC/DEC 1
ACC/DEC 2
DI2
DI3
DI4
DI5
DI6
DI7
DI8
DI9
DI10
DI11
DI12
Description
Defines the delay for zero speed delay function. The function is useful
in applications where a smooth and quick restarting is essential.
During the delay the drive knows accurately the rotor position.
No Zero Speed Delay
Speed Controller
switched off: Motor
coasts to stop
Zero Speed
Time
No Zero Speed Delay
The drive receives a stop command and decelerates along a ramp.
When the motor actual speed falls below an internal limit (called Zero
Speed), the speed controller is switched off. The inverter modulation is
stopped and the motor coasts to a standstill.
With Zero Speed Delay
The drive receives a stop command and decelerates along a ramp.
When the actual motor speed falls below an internal limit (called Zero
Speed), the zero speed function activates. During the delay the
functions keeps the speed controller live: the inverter modulates,
motor is magnetized, and the drive is ready for a quick start.
Delay Time
Time allowed for the drive to stop after an e-stop command is received
before an internal coast stop is commanded.
Setting range.
Acceleration and deceleration times. See section
deceleration ramps on page 35.
Selects the active acceleration / deceleration time pair.
Acceleration time 1 and deceleration time 1 are used. See
ACCEL TIME 1 and 22.03
Acceleration time 2 and deceleration time 2 are used. See
ACCEL TIME 2 and 22.05
Acceleration/Deceleration time pair selection through digital input DI2.
0 = Acceleration time 1 and deceleration time 1 are in use.
1 = Acceleration time 2 and deceleration time 2 are in use.
See selection DI2.
See selection DI2.
See Selection DI2.
See selection DI2.
See selection DI2.
See selection DI2.
See selection DI2.
See selection DI2.
See selection DI2.
See selection DI2.
With Zero Speed Delay
Speed Controller remains
live. Motor is decelerated
to true 0 speed
Zero Speed
Delay
Acceleration and
DECEL TIME 1.
DECEL TIME 2.
Actual signals and parameters
FbEq
Time
10 = 1 s
10 = 1 s
22.02 1
22.04 2
3
4
5
6
7
8
9
10
11
12
13
83