Speed Ctrl - ABB ACS850 Firmware Manual

128 Parameters
No. Name/Value
22.09 Shape time dec2
0.000 ... 1800.000
s
22.10 Acc time jogging
0.000 ... 1800.000
s
22.11 Dec time jogging
0.000 ... 1800.000
s
22.12 Em stop time
0.000 ... 1800.000
s
23

23 Speed ctrl

23.01 Proport gain
Controller
output = K
p
0.00 ... 200.00
Description
Defines the shape of the deceleration ramp at the end of the
deceleration. See parameter
Ramp shape at end of deceleration.
Defines the acceleration time for the jogging function i.e. the
time required for the speed to change from zero to the speed
value defined by parameter
Acceleration time for jogging.
Defines the deceleration time for the jogging function i.e. the
time required for the speed to change from the speed value
defined by parameter
Deceleration time for jogging.
Defines the time inside which the drive is stopped if an
emergency stop OFF3 is activated (i.e. the time required for
the speed to change from the speed value defined by
parameter 19.01 Speed scaling
activation source is selected by parameter
off3. Emergency stop can also be activated through fieldbus
(02.22 FBA main
Note: Emergency stop OFF1 uses the active ramp time.
Emergency stop OFF3 deceleration time.
Speed controller settings.
Defines the proportional gain (K
great a gain may cause speed oscillation. The figure below
shows the speed controller output after an error step when
the error remains constant.
%
Error value
Controller output
× e
If gain is set to 1, a 10% change in error value (reference -
actual value) causes the speed controller output to change by
10%.
Proportional gain for speed controller.
22.06 Shape time
19.01 Speed scaling.
19.01 Speed scaling
to zero). Emergency stop
cw).
) of the speed controller. Too
p
Gain = K = 1
p
T = Integration time = 0
I
T = Derivation time = 0
D
FbEq
acc1.
1000 = 1 s
1000 = 1 s
to zero.
1000 = 1 s
10.13 Em stop
1000 = 1 s
e = Error value
Time
100 = 1