Lust SMARTDRIVE VF1000 M Series - Motor Connection; Braking Chopper (BR1)

2-5
W2
U1
U2
V1
V2
W1
Delta
W2
U1
U2
V1
V2
W1
Star-form
2.3.2 Motor connection
In general:
Standard phase motors are designed in the power range up to 4 kW
according to IEC34 for various mains supplies in delta- (3∗230 V) and in
star-form (3∗400 V).
When using special phase motors not in accordance with IEC34,
information in relation to the connection type should be obtained from the
manufacturer.
VF1205M, VF1207M connection
The motor connection is via terminals
,U,V, W.
The motor must be connected to (3∗230 V).
VF1404M... VF1410M connection
The motor connection is via terminals ,U,V,W.
The motor must be connected to (3∗400 V).
2.3.3 Braking chopper (BR1)
In general:
If the rotor speed is greater than the corresponding stator speed (rotary
field of the inverter), the motor feeds energy back into the inverter. In this
braking mode, the inverter brakes the motor, by means of the DC-link
capacitors absorbing the braking energy.
BR1 design:
In this design, a braking resistance is built into the device's heat sink
which is connected via the standard braking chopper electronics installed.
Peak braking power P
BrSp
= 1650 W
Switching duration t
on
= 12 s max.
switch-on duration - = 6 %
Cyclical braking mode P
BrD
= 90 W
Example:
Braking time: Pause time:
t
on
= 12 s (6 %) ⇒ t
off
= 200 s (94 %)
t
on
= 3 s (6 %) ⇒ t
off
= 50 s (94 %)
t
on
= 1 s (6 %) ⇒ t
off
= 17 s (94 %)
wait 2 minutes
after mains off
W
V
U
PE
PE
L3
N/L2
L1
-
RB
RB
+
41
42
43
44
45
46
n.c.
23
29
36
21
22
23
24
25
26
33
34
35
26
47
48
49
50
51
52
+
+
+
+