ABB ACS880 - Page 527

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
0 / real32Defines custom scaling for the parameter 75.16 Ext2
pump speed ref src.
Ext2 speed ref scaler75.17
1 = 1 / 1 = 1Speed reference scalar.0...30000
0.00 Hz / real32Defines minimum production speed reference in
absolute value.
Minimum
production speed
75.18
10 = 1 Hz / 100 = 1 HzMinimum production speed.0.00 ... 598.00 Hz
50.00 Hz / real32Defines maximum production speed reference in
absolute value.
Maximum
production speed
75.19
10 = 1 Hz / 100 = 1 HzMaximum production speed.0.00 ... 598.00 Hz
30.0 s / real32Defines the time for the pump-motor to accelerate
from 0 up to the speed set in parameter 46.2 Frequency
scaling.
Note: If parameter 75.23 Ramp switch speed is set to
greater than 0, then this parameter ramp time setting
is used while speed reference is in lower speed region.
Acceleration time75.21
1 = 1 s / 10 = 1 sAcceleration time in seconds.0.0 ... 1800.0 s
30.0 s / real32Defines the time for the pump-motor to decelerate
from the speed set in parameter 46.2 Frequency scaling
down to 0.
Note: If parameter 75.23 Ramp switch speed is set to
greater than 0, then this parameter ramp time setting
is used while speed reference is in lower speed region.
Deceleration time75.22
1 = 1 s / 10 = 1 sDeceleration time in seconds.0.0 ... 1800.0 s
0.00 Hz / real32Defines the speed at which ramp time should switch
from ramp set 1 to ramp set 2.
• Ramp set 1 (75.21 Acceleration time and 75.22
Deceleration time) is used in speed range from
75.15 Starting speed up to 75.23 Ramp switch
speed.
• When speed reference gets higher than 75.23
Ramp switch speed, then ramp set 2 is used (75.24
Acceleration time 2 and 75.25 Deceleration time
2).
• If parameter value is "0", then only ramp set 1 is
used for the complete production speed range.
Ramp switch speed75.23
10 = 1 Hz / 100 = 1 HzRamp switch speed.0.00 ... 598.00 Hz
30.0 s / real32Defines the time for the pump-motor to accelerate
from 0 up to the speed set in parameter 46.2 Frequency
scaling.
Note: If parameter 75.23 Ramp switch speed is set to
greater than 0, then this parameter ramp time setting
is used while speed reference is in lower speed region.
Acceleration time 275.24
1 = 1 s / 10 = 1 sAcceleration time 2 in seconds.0.0 ... 1800.0 s
Parameters 527