The ongoing development of a well-proven product

SINAMICS G180 is the integration of the LOHER DYNAVERT T Series 7 drive system into the Siemens SINAMICS family of drives.

It leverages the experience that the Siemens Ruhstorf manufacturing location has accumulated and proven in over four decades of successful use in extremely demanding industries, for example, in the chemical and oil & gas industries.

Especially for drive applications in hazardous zones, LOHER Drives & Systems with the DYNAVERT T and its explosion-proof motors is recognized by customers in the specified industries as a reliable and competent partner and enjoys a high degree of esteem and recognition.

The new member of the SINAMICS family – the SINAMICS G180 – completely inherits this outstanding reputation.

For use in hazardous zones, SINAMICS G180 is the perfect drive solution, since a large number of industry-specific features are already integrated as standard in the system.

SINAMICS G180 is capable of fulfilling all requirements, from relatively straightforward applications such as pumps and fans, up to sophisticated drive solutions with outputs ranging from 2.2 to 6600 kW for applications such as centrifuges, presses, extruders or compressors.

ETO – Always the optimum solution (Engineered to Order)

In addition to a broad range of converters for single and group drives with standardized options, we can also supply complete drive systems which are individually customized such as, for example, converter transformer, converter and motor – "Engineered to Order (ETO)".

How does the customer benefit? We can create the required drive system quickly and systematically.

"Engineered to Order" includes all the essential components – motor, converter transformer, accessories for adapting the drive to challenging line supply conditions, degrees of protection up to IP55 or extremely long motor cables, as well as a variety of control and communication concepts – from the planning stage to production and documentation, commissioning and servicing – including and particularly for hazardous zones. Tailor-made solutions for the customer's application are worked out as early as the offer stage. All aspects of the drive are taken into account from the very beginning - from the coupling to the motor, the cabling, the converter, the line system conditions at the installation site and the supervisory control system interface.

ETO also provides documentation which is tailored to your requirements, including a description of the interfaces to the supervisory control system or other external systems.

Taking a structured and efficient approach, we apply our many years of motor manufacturing expertise to the design and adaptation of the SINAMICS G180 because product developments in the motor and converter fields are closely coordinated.

Preassignment of the SINAMICS G180 parameters at the factory speeds up commissioning significantly.

In addition to customized system designs, we offer a range of converter solutions based on standardized accessories packages which are now widely used in a very broad spectrum of industries.

The leading expert in the field of explosion-proof drives

LOHER Motors & Drives has been a leading supplier of explosion-proof drives since 1960 and has since built an excellent reputation around the world as a recognized expert in the field.

We are always 100 % reliable when it comes to designing the key explosion-proof features of drive systems. We examine every single element of the entire drive package.

Our frequency converters are specially designed for operation with explosion-proof motors and are certified for EEx n, EEx e and EEx d types of protection according to ATEX.

The motors are protected thermally by temperature sensors which are evaluated directly in the converter. The PTC thermistor input (with ATEX certification) on the converter makes any further accessories such as main contactor or PTC relay completely unnecessary.

We don't leave our customers on their own to deal with the "Ex" problem!

We can answer all your questions such as

• What is the correct converter clock frequency?
• What is the maximum permissible terminal voltage at the motor terminal box?
• How high are the voltage peaks at the motor when long motor cables are used?
• What winding insulation does the motor need?
• Fed-in winding or preformed coil?
• Should the motor be protected by PTCs and/or Pt100s?
• etc.

We will be glad to document the proper functioning and quality of your drive!

We use a state-of-the-art test bay to verify and confirm the proper functioning and quality of each individual converter – and do this gladly in the presence of the customer by way of an acceptance test. In addition to visual inspections and function tests, we can also test and document the output and efficiency of the overall drive and its line supply behavior. Our test stand is equipped with loading devices and measuring instruments for outputs of up to around 6600 kW.

Our quality management is certified in accordance with DIN ISO 9001 and is therefore subject to regular stringent quality audits by independent test institutes.