Power Electronics SD300 Series - Page 316

SD300
POWER ELECTRONICS
314
COMMONLY USED CONFIGURATIONS
Parameter
Default value
Description
Set value
bA.15
0V
Motor-rated voltage
220 / 380 / 440 / 480
bA.16
-
Motor efficiency
Depends on the motor capacity
bA.19
380V
Motor input voltage
220 / 380
After introducing the basic parameters motor/drive, it is necessary to
perform an autotuning to calculate the internal parameters of the motor:
Parameter
Default value
Description
Set value
bA.20
0
Autoajuste
7 Todo PM
After that, check if the motor turns correctly. If the motor turns in the lower
speed irregularly, try to increase the parameter of Back EMF:
Parameter
Default value
Description
Set value
Cn.33
100.0%
PM D-axis back-EMF estimated gain (%)
100.0%
The following parameters are used for the starting as well. If the
acceleration ramp is too slow and the motor works irregularly these
parameter must be decreased. If the ramp is very fast, increase the
parameters to provide stability.
If for high speed operation the speed is unstable, the speed loops
regulators could be modified:
Parameter
Default value
Description
Set value
Cn.12
100
PM speed controller P gain 1
100
Cn.13
150
PM speed controller I gain 1
150
Cn.15
100
PM speed controller P gain 2
100
Cn.16
150
PM speed controller I gain 2
150