SDRIVE 700
POWER ELECTRONICS
56
DESCRIPTION OF PROGRAMMING PARAMETERS
10.5.
Group 5 – G5: Acceleration and Deceleration Ramps
Parameter
Name /
Description
Range
Default
value
Function
Set on
RUN
1 ACC1=3.0%/s
INITIAL ACCEL
G5.1
/
Acceleration
ramp 1
0.01 – 650%
/ sec
3.0%/s
Allows user to set acceleration ramp 1. The setting is in acceleration
units (increase in percentage of speed per second). For example, a
10%/s ramp means that the drive increases its speed by 10% of
motor rated speed for each second. This ramp will be set according
to the requirements of each process.
YES
2 DECEL1=3.0%/s
INITIAL DECEL
G5.2
/
Deceleration
ramp 1
0.01 – 650%
/ sec
3.0%/s
Allows user to set deceleration ramp 1. The setting is in deceleration
units (decrease in percentage of speed per second). For example, a
10%/s ramp means that the drive decreases its speed by 10% of
motor rated speed for each second. This ramp will be set according
to the requirements of each process.
YES
3 ACC2=1.0%/s
SECOND ACCELE
G5.3
/
Acceleration
ramp 2
0.01 – 650%
/ sec
1.0%/s
Allows user to set the alternative acceleration ramp. The setting is
based in acceleration units (increase in percentage of speed per
second), like the main ramp setting. The drive will apply acceleration
ramp 1 until motor speed exceeds the value set in 'G5.5 BRK ACC'.
From here on it will apply the alternative ramp value. If 'G5.5 BRK
ACC = OFF' no ramp change will occur.
YES
4 DECEL2=1.0%/s
SECOND DECELE
G5.4
/
Deceleration
ramp 2
0.01 – 650%
/ sec
1.0%/s
Allows user to set the alternative deceleration ramp. The setting is in
deceleration units (decrease in percentage of speed per second),
like the main ramp setting. The drive will apply deceleration ramp 2
until motor speed is below the value set in 'G5.6 BRK DEC'. From
here on it will apply the alternative ramp value. If 'G5.6 BRK DEC =
OFF' no ramp change will occur.
YES
5 BRK ACC=OFF
BREAKPOINT ACL
G5.5
/ Speed for
acceleration
ramp change
OFF,
0 to 250%
OFF
This parameter sets the break frequency for the alternative
acceleration ramp. This parameter should be set at to the speed at
which a change in the acceleration profile is required. If this value is
exceeded the drive will start to apply the value of the alternative
acceleration ramp.
Note:
Alternative acceleration and deceleration can be selected
through the digital inputs or comparator output functions. This
functionality is independent of the drive speed (for example, if the
magnitude of the comparator is the drive rated current, when the
drive output current exceeds a defined level, calculated as % of In, a
ramp change occurs).
YES
6 BRK DEC=OFF
BREAKPOINT DCL
G5.6
/ Speed for
deceleration
ramp change
OFF,
0 to 250%
OFF
This parameter sets the break frequency for the alternative
deceleration ramp. This parameter should be set at to the speed at
which a change in the deceleration profile is required. If this value is
exceeded, the drive will start to apply the value of the alternative
deceleration ramp.
Note:
Alternative acceleration and deceleration can be selected as
needed through the digital inputs or comparator output functions.
This functionality is independent of the drive speed (for example, if
the magnitude of the comparator is the drive rated current, when the
drive output current is below a defined level, calculated as % of In, a
ramp change occurs).
YES
7 MPT INC1=1.0%/s
MOTO POT INC1
G5.7
/ Ramp 1 of
reference
increase for
motorized pot.
0.01 – 650%
/ sec
1.0%/s
Allows adjustment of ramp 1 reference increase when using the
motorized potentiometer function.
YES
8 MPT DEC1=3.0%/s
MOTO POT DEC1
G5.8
/ Ramp 1 of
reference
decrease for
motorized pot.
0.01 – 650%
/ sec
3.0%/s
Allows adjustment of ramp 1 reference decrease when using the
motorized potentiometer function.
YES
9 MPT INC2=1.0%/s
MOTO POT INC2
G5.9
/ Ramp 2 of
reference
increase for
motorized
potentiometer
0.01 – 650%
/ sec
1.0%/s
Allows user to set the ramp 2 reference increase for the motorized
potentiometer function. The drive will apply the ramp 1 rate until the
value set in 'G5.11 PMOT BRK' is exceeded. From here on it will
apply the alternative ramp value. If 'G5.11 PMOT BRK = OFF', no
ramp change will occur.
YES
10 MPT DEC2=3.0%/s
MOTO POT DEC2
G5.10
/ Ramp 2
of reference
decrease for
motorized
potentiometer
0.01 – 650%
/ sec
3.0%/s
Allows user to set the ramp 2 reference decrease for the motorized
potentiometer function. The drive will apply the ramp 1 rate until
below the value set in 'G5.11 PMOT BRK'. From here on it will apply
the alternative ramp value. If 'G5.11 PMOT BRK = OFF', no ramp
change will occur.
YES
