Bosch 4306 Service Manual Page 16

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16
• DOK-POWER*-KDV*2.3****-ANW1-EN-E1,44 • 06.97
3. Guidelines for installation and electrical connections
3.6. DC bus
Use the busbars found in the connection accessories of the drive module to
connect the drive modules to the DC bus of the KDV 2.3. Use individual cables
with stranded wires for longer connections (maximum length is one meter).
Figure 3.7: DC bus wiring
During normal operation, the dynamic brake resistor R1 has DC 300
V applied to it with respect to ground! The cabinet builder must
provide protection against accidental contact (plexiglass or
perforated sheeting, for example).
L-
L+
L-
L+
L-
L+
L-
L+
stranded,
maximum
length 1
meter
16 mm
2
stranded,
maximum
length 1
meter
TVMZwkreis
KDV 2.3
drive
module
drive
module
additional
module
L-
L+
D.C. bus
dynamic
braking
K2
R1
TCM
1L+ 2L+
stranded,
maximum
length 1
meter
smoothing choke
16 mm
2
for GLD 13
25 mm
2
for GLD 12
and P
DC
23 kW
35 mm
2
for P
DC
> 23 kW 30 kW
<
<
stranded,
max.
length
one meter
1
1
If fusing corresponds to recommendations in Sect. 3.3:
Mains transformer up to 25 kVA: diameter = 10 mm
2
Mains transformer up to 35 kVA: diameter = 16 mm
2
P
DC
in kW A in mm
2
18 16
23 25
Diameter depends on
continuous D.C. bus voltage
to-be-transmitted, at least
16 sq. mm
drive
module
(A stud is needed to connect these diameters to K2.
Supplier: Telemecanique, part no. LA9 - D 2561)
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