Lust CDA3000 - Page 102

4-50
Application Manual CDA3000
4 Application data sets
Characteristics of the control methods in comparison
Figure 4.34 Master/-Slave coupling via two control cables
Note: In primary frequency coupling a dead time of max. 2 ms is
created between the axles.
Characteristics
VFC
Voltage
Frequency
Control
SFC
Sensorless
Flux Control
FOR
Field-Oriented
Regulation
Speed manipulating range M=M
Nom
1 : 20 1 : 50 > 1 : 10000
Static speed accuracy referred to the
rated speed
typically 1 to
5%
typically 0.5% quartz-accurate
Frequency resolution 0.01 Hz 0.0625 Hz
2
-16
Table 4.24 Comparison of motor control methods
M3
3~
M2
3~
M1
3~
17
16
X2
Master
Reference
3000 rpm
14
10
X2
i = 0.5
Slave 1
14
10
X2
i = 0.3333
Slave 2
n = 3000 rpm
n = 1500 rpm
n = 1000 rpm
M6
3~
14
10
X2
i = 0.2
Slave 5
n = 600 rpm