Lenze DSD - Manual (Page 307)

10
Structure of the drive axis
10
.3
Dri
ve con
ce
pt
Lenze ·
Dri
ve
Soluti
on
Desi
gner ·
M
anual
· DM
S
4.
2
EN
·
12/2013 ·
TD23
30
7
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10.3.8 Selection help: Control types for winding drive systems
Tension control (M) Tension control (M) 1) Tension control (n) 1) Dancer position control (n) Velocity control (n)
Winder control mode
Traversing motor control Open-loop torque control Closed-loop torque control Closed-loop speed control Closed-loop speed control Open-loop speed control
Control system
SC
Rewinder/unwinder + + + + +
VFCplus without encoder
Rewinder/unwinder – – – 0 0
SLVC
Rewinder + – – 0 +
Unwinder – – – – –
VFCplus with encoder
Rewinder 0 – – 0 0
Unwinder – – – 0 0
VFCplus eco
Rewinder/unwinder – – – – –
+ Well-suited SC Servo control
0 Suitable with restrictions VFCplus V/f control
– Not suitable VFCplus eco V/f control with energetically optimised field injection in the partial load operational range
1) Comparison of tension-controlled winder control modes ( 214) SLVC Sensorless vector control
v
F
M
3~
Inverter
n, M r
v
F
n, M r
M
3~
Inverter
M = f(F, r)
n = f(v, r)
F
act
v
F
n, M r
M
3~
Inverter
M = f(F, r)
n = f(v, r)
F
act
v
F
F~F
G
F
G
M
3~
n, M
Inverter
Actual
position
v
F
M
3~
n, M r
v
act
Inverter
M = f(F, r)
n = f(v, r)