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Chapter 6 - Pump control application
POWERXL DM1 SERIES VARIABLE FREQUENCY DRIVES
MN040049EN
—September 2021 www.eaton.com
Table 43. Drive control (Cont.).
P4.1.11
b
Ramp 2 shape
ID 248
Minimum value:
0.0 s
Maximum value:
10.0 s
Default value:
0.0 s
Description:
The start and end of the acceleration and deceleration ramps can be smoothed with these parameters. Setting a value of 0.00 gives a
linear ramp shape that causes acceleration and deceleration to react immediately to the changes in the reference signal.
Setting a value from 0.10 to 10.00 seconds for this parameter produces an S-shaped acceleration/deceleration at the start and stop of
the slope.
P4.1.12
b
Accel. time 2
ID 249
Minimum value:
0.1 s
Maximum value:
3000.0 s
Default value:
10.0 s
Description:
These values correspond to the time required for the output frequency to accelerate from the zero frequency to the set maximum
frequency.
These parameters provide the possibility to set two different acceleration/deceleration time sets for one application. The active set can
be selected with the programmable digital input.
P4.1.13
b
Decel. time 2
ID 250
Minimum value:
0.1 s
Maximum value:
3000.0 s
Default value:
10.0 s
Description:
These values correspond to the time required for the output frequency to decelerate from the set maximum frequency to the zero
frequency.
These parameters provide the possibility to set two different acceleration/deceleration time sets for one application. The active set can
be selected with the programmable digital input.
P4.1.14
ab
2nd Stage ramp frequency
ID 2444
Minimum value:
MinFreq.
Maximum value:
MaxFreq.
Default value:
30.00 Hz
Description:
When 2nd stage ramp frequency is the frequency level at which the drive will enable the 2nd stage ramp frequency output function.
This then can be used for other inputs or devices to signal a frequency level.
a
Parameter value can only be changed after the drive has stopped.
b
Parameter value will be set to be default when changing macros.
Table 44. Motor control (Cont.).
P5.1 - Basic settings.
P5.1.1
ab
Motor control mode
ID 287
Minimum value:
N.A.
Maximum value:
N.A.
Default value:
0
Options:
0 = Frequency control - Output frequency is controlled directly by the frequency reference.
1 = Speed control - Output frequency is controlled by giving a frequency reference to it with slip compensation.
Description:
Selects the motor control mode
.
Ramp 2 Shape
Accel. Time 1, Decel. Time 1
(Accel. Time 2, Decel. Time 2)
t
Hz
Ramp 2 Shape
.