SDRIVE 700
POWER ELECTRONICS
76
DESCRIPTION OF PROGRAMMING PARAMETERS
10.18.
10.18.1.
Subgroup 19.1 – S19.1: IGBT Control
Parameter
Name /
Description
Range
Default
value
Function
Set on
RUN
1 TYPE CRTL=V/Hz
G19.1.1
/
Selection of
control type
V/Hz
PEVE
V/Hz
This selection defines the drive control type.
OPT
FUNCTION
V/Hz
Scalar control mode. Drive carries out the control
applying a voltage / frequency ramp to the motor.
PEVE
Automatic compensation of stator voltage using
the PEVE algorithm to improve the torque
delivery.
NO
2 FRQ=4000
MODULAT FREQUENC
G19.1.2
/
Commutation
frequency
4000 – 8000
Hz
4000Hz It allows modification of the drive switching frequency. This function
can be used to reduce audible motor noise.
YES
3 PEWAVE=Y
G19.1.3
/
Pewave control
N
Y
Y
This control mode improves motor noise tone.
OPT
FUNCTION
N=NO
Pewave control deactivated.
Y=YES
Pewave control activated.
Commutation frequency (G19.1.2) is slightly
modified on a random basis to improve the noise
tone generated by the motor.
YES
10.18.2.
Subgroup 19.2 – S19.2: Motor Load
Parameter
Name /
Description
Range
Default
value
Function
Set on
RUN
1 MIN FLUX = 100%
MINIMUM FLUX
G19.2.1
/
Minimum Flux
40 – 150%
100%
Allows setting of the minimum flux level used by the motor during
low load conditions. With this dynamic system of flux optimization,
noise and power losses are reduced. Adaptation of the flux level
during low load conditions occurs automatically. The algorithm will
be disabled when this parameter is set to 100%.
YES
2 V BOOST = 0.0%
BOOST VOLTAGE
G19.2.2
/ Initial
voltage
0.0 – 100%
0.0%
Sets an initial voltage value applied to the motor during the starting.
Using this function it is possible to improve breakaway torque when
starting heavy loads. This parameter is used in association with
parameter 'G19.2.3 BW BOOST'.
Note:
Set a low value first. Increase the value gradually until the
load starts easily.
YES
3 BW BOOST=0.0%
BOOST BAND
G19.2.3
/ Torque
boost band
0.0 – 100%
0.0%
It sets a frequency band or range on which torque set in previous
parameter will be applied during the start.
YES
4 SLIP COMPENS=N G19.2.4
/ Slip
compensation
N
Y
N
If this function is active, it helps to compensate the slip on the motor.
In case of heavy load able of provoking a high slip during the
starting, set this parameter to YES.
YES
5 DAMPING=0.0%
G19.2.5
/ Drive
damping
0.0 – 20.0%
0.0%
It allows setting a damping value for the drive when it operates with
no loaded motors. If the motor is operating with no load and a high
oscillation in the current measurement is detected, then it is
recommended to increase this value. Nevertheless, avoid operating
with very high values (higher than 1.5%).
YES
6 TTP BAND=0.0%
G19.2.6
/
Compensating
bandwidth of
Torque transitory
0.0 – 10.0%
0.0%
It allows setting an initial value for a band of frequencies, where the
torque transitory will be compensated. This function helps in the
starting when the load is heavy and a high boost is required. This
value can be increased when strikes and oscillations are observed
during the motor starting. Nevertheless, do not modify this value
unnecessarily since the motor operation will be affected.
YES
