ABB ACS580 Firmware Manual page 323

No. Name/Value
SPFC
76.25 Number of motors
1...4
76.26 Min number of
motors allowed
0...4
76.27 Max number of
motors allowed
1...4
76.30 Start speed 1
Speed
76.30
76.41
Min. speed
ON
OFF
ON
OFF
0...32767 rpm/Hz
Description
SPFC enabled. See section
(SPFC) on page.104
Total number of motors used in the application, including the
motor connected directly to the drive.
Number of motors.
Minimum number of motors running simultaneously.
Minimum number of motors.
Maximum number of motors running simultaneously.
Maximum number of motors.
Defines the start speed (Hz/rpm) for the first auxiliary motor.
As the motor speed or frequency exceeds the limit defined by
this parameter, a new auxiliary motor is started.
To avoid nuisance starts of the second auxiliary motor, the
speed of the variable speed motor should be higher than the
start speed for the duration defined by parameter
delay. If the speed decreases below the start speed, the
auxiliary motor is not started.
To maintain the process conditions during the start of the
second auxiliary motor, a speed hold on time can be defined
with parameter 76.57 Speed hold
not produce significant flow with low frequencies. The speed
hold on time can be used to compensate the time needed to
accelerate the second auxiliary motor to a speed where it
produces flow. The start of the second auxiliary motor is not
aborted if the speed of the first auxiliary motor decreases
Stop
Speed/frequency.
Soft pump and fan control
on. Certain pump types do
76.55
76.57
76.56
76.58
Start
Parameters 319
Def/FbEq16
3
1
1 = 1
1
1 = 1
1
1 = 1
Vector:
1300 rpm;
Scalar 48 Hz;
58 Hz
(95.20 b0)
76.55 Start
Max. speed
Time
Increasing
flow
Decreasing
flow
1 = 1 unit