Parameters 163
Defines deceleration time 1 as the time required for the speed
to change from the speed defined by parameter
not
from parameter
) 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
).
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.
5.000 s
0.000…1800.000 s
Deceleration time 1.
10 = 1 s
Defines the time inside which the drive is stopped if an
emergency stop Off3 is activated (ie. the time required for the
speed to change from the speed value defined by parameter
to zero).
Emergency stop mode and activation source are selected by
parameters
and
respectively. Emergency stop can
also be activated through fieldbus.
Note:
• Emergency stop Off1 uses the standard deceleration ramp
.
• The same parameter value is also used in frequency
control mode (ramp parameters
3.000 s
0.000…1800.000 s
Emergency stop Off3 deceleration time.
10 = 1 s
Defines the shape of acceleration ramp at the beginning of
acceleration.
0.000
0.000...1800.000 s
Shape time 1.
24
24 Speed reference
conditioning
Speed error calculation; speed error window control
configuration; speed error step.
See the control chain diagram on page
Displays the ramped and corrected speed reference (before
speed error calculation). See the control chain diagram on
page
This parameter is read-only.
-
-30000.00…
30000.00 rpm
Speed reference used for speed error calculation.
See par.
Displays the speed feedback used for speed error calculation.
See the control chain diagram on page
This parameter is read-only.
-
-30000.00…
30000.00 rpm
Speed feedback used for speed error calculation.
See par.
Displays the filtered speed error. See the control chain
diagram on page
.
This parameter is read-only.
-
-30000.0…
30000.0 rpm
Filtered speed error.
See par.
No.
Name/Value
Description
Def/FbEq16
Summary of Contents for ACQ580
Page 1: ...ABB drives for water Firmware manual ACQ580 pump control program ...
Page 4: ... 2017 ABB Oy All Rights Reserved 3AXD50000035867 Rev C EN EFFECTIVE 2017 06 21 ...
Page 30: ...26 Start up control with I O and ID run ...
Page 40: ...36 Default configuration ...
Page 304: ...300 Parameters ...
Page 340: ...336 Additional parameter data ...