Program features 49
Pump control features
Note:
ABB recommends reading the pump manufacturer’s instructions for optimal
performance.
Reference ramping
Acceleration and deceleration ramping times can be set individually for speed and
frequency reference (
Menu - Primary settings - Ramps
).
With a speed or frequency reference, the ramps are defined as the time it takes for
the drive to accelerate or decelerate between zero speed or frequency and the value
defined by parameter
. For speed
and frequency reference, also the shape of the ramp can be controlled.
Special acceleration/deceleration ramps
The change rate of the motor potentiometer function (page
) is adjustable. The
same rate applies in both directions.
A deceleration ramp can be defined for emergency stop (“Off3” mode).
Pump protections - Quick ramps
The quick ramp function allows you to use two additional ramp sets to accelerate or
decelerate the pump. The following figure illustrates the acceleration in a quick ramp
mode when both additional ramp sets are used.
In submersible (a.k.a borehole) pumps, the mechanical wearing of bearings can be
reduced by ramping the pump quickly to a certain speed.
a First stage of acceleration
b Second stage of acceleration
c Third stage of acceleration
a
b
c
Time
Speed reference [rpm]
1
2
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 ...