SIEMENS
SINAMICS DCM
Highlights
2/3
Siemens D 23.1 · 2014
2
■
Overview
(continued)
24 V DC electronics power supply
The electronics power supply of the DC Converter will be
available in two versions:
•
For connection to 230 V/400 V AC or
•
For connection to 24 V DC (protected against polarity
reversal).
Using a 24 V supply, a UPS function can be simply implemented
– and therefore the availability of the plant or system increased.
The figure above shows a 24 V DC power supply SITOP smart.
Power section isolated with respect to ground
(floating voltage sensing)
The power section voltage sensing inside the unit is floating with
respect to the electronics (electrically isolated).
This is the reason that in the future it will not be necessary to
disconnect/connect the motor cable to measure the insulation
resistance of DC motors. In order to secure the availability of the
plant or system and to avoid severe damage to the motor, it is
absolutely mandatory that the insulation resistance of DC motors
is regularly checked.
Free function blocks and Drive Control Chart
A sufficient number of free function blocks for various applica-
tions is included as standard. Optionally, the functional scope
can be subsequently extended using free function blocks from
Drive Control Chart (DCC). This allows the drive to be optimally
adapted to the particular application – both technically and
economically.
Expandable functionality using SINAMICS components
Additional inputs and outputs are available by coupling supple-
mentary modules from the SINAMICS range to the DRIVE-CLiQ
interface (Advanced CUD). As a consequence, the flexibility
when engineering the plant or system is increased and at the
same time costs are optimized.
Single-phase connection is possible
For units up to 125 A and up to 575 V AC, the full functionality
is available even when supplied through just two conductors.
This means, for example, that when retrofitting a converter with
single-phase connection, it is not necessary to make any
changes to the existing machine or plant – and the retrofitted
drive system can be integrated into state-of-the-art communica-
tion concepts (TIA).
M
G_D023_XX_00071
1U1
1V1
1W1
© Siemens AG 2014