Siemens SINUMERIK 840D sl Manual

Structure of the drive group
2.3 Current Carrying Capacity of the DC Link Busbar
Guide for the SINUMERIK 840D sl machine configuring
2-12 Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
Example 2:
Connection of several Motor Modules with the same current carrying capacity of the DC link
busbar to a Line Module with center infeed.
$$$$$
/LQH
0RGXOH
N:
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
$$$$$
$$$$$
$$$
&XUUHQWFDUU\LQJFDSDFLW\RI
WKH'&OLQNEXVEDU
,QFUHDVHRIWKHORDGLQJRI
WKH'&OLQNEXVEDU
/RDGLQJRIWKH'&OLQNEXVEDU
'&OLQNFXUUHQW,
' IRUUDWHG
RXWSXWFXUUHQW,
1 IRUWKH0RWRU
0RGXOH
0RWRUFXUUHQW UDWHGRXWSXW
FXUUHQW,
1 0RWRU0RGXOH
Figure 2-10 Infeed from left and right (center infeed)
Note
Due to the design, center feed is possible only for power units with rated output current of
the Line Modules ≥ 55 kW.
The single side infeed would produce an overloading for a 60 A Motor Module. This
construction variant is not permitted.
$$$$$
$$$$
/LQH
0RGXOH
N:
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
0RWRU
0RGXOH
$
$$$$$
$$$$$
&XUUHQWFDUU\LQJFDSDFLW\RI
WKH'&OLQNEXVEDU
,QFUHDVHRIWKHORDGLQJRIWKH
'&OLQNEXVEDU
/RDGLQJRIWKH'&OLQNEXVEDU
'&OLQNFXUUHQW,
' IRUUDWHG
RXWSXWFXUUHQW,
1 IRUWKH0RWRU
0RGXOH
0RWRUFXUUHQW UDWHGRXWSXW
FXUUHQW,
1 0RWRU0RGXOH
Figure 2-11 Overloading of the DC link busbar for a 60 A Motor Module

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based