Engineering Guide CDA3000
4-57
4 Software functions
DE
EN
1
2
3
4
5
6
7
A
Characteristics of the control methods in comparison
Figure 4.46 Master-/Slave coupling via two control cables
Note: The motors run speed-synchronously, not angle-synchro-
nously. In primary frequency coupling a dead time of
max. 2 ms is created between two axles.
A maximum of five slave drives can be connected.
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 nominal speed
typically 1 to 5 % typically 0.5 % quartz-accurate
Frequency resolution 0.01 Hz 0.065 Hz
2
-16
Hz
Table 4.18 Comparison of motor control methods
M3
3~
M2
3~
M1
3~
16
17
X2
Master
Reference
3000 U/min
14
10
X2
i = 2
Slave 1
14
10
X2
i = 3
Slave 2
n = 3000 rpm
n = 1500 rpm
n = 1000 rpm
M6
3~
14
10
X2
i = 5
Slave 5
n = 600 rpm
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