Keba ServoOne Series - Connection Diagram and Precharging, BG7

Operation Manual ServoOne Supply Unit
39
ID no.: 1101.21B.6-00 Date:04/2020
Key:
1) Braking resistor with temperature sensor
2) Short circuit proof cables
3) ServoOne supply unit BG7
4) Connection for DC power supply for DC axis controller
5) Connection for DC link precharging
6) Connection for mains synchronisation
7) External 24-V DC control supply
8) Internal relay (active, once DC link precharging com-
pleted)
Caution! Must be connected to SELV or PELV
potential!
9) Fuses F5 or circuit breakers
10) Short circuit proof cables
11) Fuses F1
12) Precharging circuit
13) Mains supply/emergency stop
14) Mains lter
15) Input choke ( including lm capacitor)
16) Power supply, DC axis controller
17) Step-up choke with KTY temperature sensor
18) As short as possible, if necessary lay shielded
19) AC mains connection
20) Ext. 24 V control supply
21) Fuse F3 max. 10 A
22) Fuses F2, for DC fuses see chap.
Figure 4.11 Connection diagram BG7 - shownwithoutDCaxiscontroller
NOTE:
The gure only shows a schematic depiction of the connection diagram.
The position of the terminals may vary depending on the device. Incorrect
wiring can cause irreparable damage to the supply unit.
NOTE:
You will nd a selection of possible mains contactors, circuit breakers and
fuses in chap.A.11, p.85.
The switching over of the DC link precharging to the mains is realised externally on BG7
devices. The connection diagram in Figure 4.11 is only an example. No exceptional
cases are taken into account.
Wire the precharging circuit according to the standards using short circuit proof
cables. The connection ratings for the internal relay for the terminals X44/3, 4 are
U
max
=30VDC, I
max
=6A. For this reason use an auxiliary contactor K3 to switch the
main contactor K1.
4.3.8 Connection diagram and precharging, BG7
K1
L1
L2
L3
K2
N
PE
BG7
Supply unit
RB
− +
ZK-
F2
24 V DC
ZK-
ZK+ZK+
L3L2L1PE
X5
L1
PE PE
X11
P1 P2
P3
X45
X12
PE S1
S2 S3 SN
nc.
L1 L2 L3 PE L1 L2 L3 N
K1
K3
K2
K1
F3
K3
24 V
24 V
S1
GND
GND
GND
1 2
3 4
X44
1
2
3
4
9
22
20
10
11
12
13
14
18
19
17
16
5 6 7 8
ϑ
F1
F5
L2 L3
L1.1
L2.1 L3.1
21
L3.1 L2.1 L1.1
L3 L2 L1
15
Figure 4.11 Connection diagram BG7 - shownwithoutDCaxiscontroller
Electrical installation