With SINAMICS DC MASTER Cabinet units, flexibility and standardized quality have been merged to create a converter cabinet system. As a result of the wide range of options, the cabinet can be optimally adapted to individual requirements. Further, the use of standardized production techniques and components ensure short delivery times.
Ready-to-connect and switch-on
The basic version of SINAMICS DC MASTER Cabinet is ready to be connected and switched-on. As a consequence, the engineering and commissioning times as well as plant downtimes can be simply shortened – and the functionality is guaranteed as a result of the components that are optimally harmonized with one another.
Supply for the motor fan
The power supply for the external fan of the DC motor is already included in the basic version, including the motor protection circuit breaker. By selecting the appropriate option, the setting values of the motor protection circuit breaker can be adapted to the motor.
Flexible when selecting the auxiliary power supply
SINAMICS DC MASTER Cabinet units can be universally and flexibly used over wide voltage ranges. The ability to adapt to the existing control voltage is especially interesting when it comes to modernizing existing plants. The auxiliary voltage of the converter cabinet is appropriately adapted by specifying the line supply voltage available. If a separate auxiliary power supply is not available, then this is taken from the cabinet.
EMC zone concept
Thanks to its EMC zone concept, the SINAMICS DC MASTER Cabinet is admirably suited for industrial environments – regarding ruggedness against disturbing influences and its low noise emission.
The zone concept refers to the spatial arrangement of the components installed in the cabinet. These include electrical/electronic devices, but especially also cables for power and signals, which can be either interference sources or also interference sinks. One feature of this concept is that cables are separately routed and high-frequency low-ohmic connections are used. In order that this concept can also be maintained on the plant side, the customer interfaces – which are easy to access – not only have suitable terminals and shield bars, but also sufficient space so that cable shields can be connected according to the appropriate specifications.
The drive cabinet, designed and implemented according to this concept, ensures disturbance-free operation regarding electromagnetic compatibility.
Monitoring the temperature inside the drive cabinet
In the field, the availability of a drive is frequently influenced by changing ambient conditions:
Additional external heat sources in the environment can increase the air intake temperature
An unusually high degree of pollution in the air can block the air intake filter
Subsequently equipping the drive cabinet with devices with a high power loss puts additional load on the cabinet cooling
These effects can be detected at an early stage and countermeasures applied in time by monitoring the temperature inside the drive cabinet using a PTC sensor.
Easy access to individual components and customer interfaces
In spite of the compact design, the individual components are transparently arranged in the SINAMICS DC MASTER Cabinet, and are easy to access. Especially the terminals are arranged so that there is sufficient space for installation and fixing cables. The signal cables are also combined and routed to terminals in the lower section of the cabinet.
It goes without saying that the SINAMICS DC MASTER Cabinet units are type-tested cabinets. The exhaustive testing, for example, regarding the mechanical and electrical strength as well as temperature rise, clearly verifies our high quality claims.
In addition to the manuals for the SINAMICS DC MASTER, it goes without saying that a circuit diagram and a terminal diagram are also supplied. The diagrams are individually generated and precisely represent the state of the converter cabinets when shipped. These diagrams can also be provided in a digital form so that customers can integrate them into CAE systems.
Special project-specific solutions
In addition to 12-pulse series and 12-pulse parallel connections, solutions can also be created to expand the power rating or for applications in the medium voltage range. Depending on the actual requirement, the converter cabinet is either based on the SINAMICS DC MASTER DC Converter – or on the Control Module and a separate power unit.