Connection Diagram And Precharging, Bg7 - Keba ServoOne Series Operation Manual

4.3.8

Connection diagram and precharging, BG7

L1
L2
L3
N
PE
9
F5
K2
16 22
F2
nc.
PE PE P1 P2 P3 PE S1 S2 S3 SN
ZK- ZK-ZK+ZK+
L1 L2 L3 PE L1 L2 L3 N
4 5 6
X11 X45
BG7
Supply unit
3
X12
RB
− +
2
ϑ
1
Figure 4.11 Connection diagram BG7 - shown without DC axis controller
ID no.: 1101.21B.6-00 Date: 04/2020
Electrical installation
11 F1
10
K3
K1
24 V
K1
13
S1
12
20
L1 L2 L3
K1
K3
14
24 V DC
K2
L1.1 L2.1 L3.1
21
F3
15
1 2 3 4
7 8
X44
17
X5
19
PE L1 L2 L3
18
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
Figure 4.11 Connection diagram BG7 - shown without DC axis controller
NOTe:
The figure 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 find 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 = 30 V DC, I = 6 A. For this reason use an auxiliary contactor K3 to switch the
max max
main contactor K1.
13) Mains supply/emergency stop
14) Mains filter
15) Input choke ( including film 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.
Operation Manual ServoOne Supply Unit
39