FC

Frequency converter drives by Elmo Rietschle are designed on the basis of exactly matched modular components. Thereby the operation is possible in two fundamentally different variants:

1. Operation with integrated FC

The converter is installed directly on the motor (instead of the clamping box).

2. Operation with FC in an electrical enclosure

The frequency converter is offered as an external device separately to the pump for installation in an electrical enclosure. Generally the two variants share the following benefits

Clearly arranged

The keypad can also be used to display the operating parameters. With eight buttons and a display, the clear menu structure allows quick access to all converter parameters. The keypad is also used for status indication, fault diagnosis and with its integrated memory to transfer settings to other converters.

Reliable

The maximum current limiting guarantees reliability in any operating point with constant and varying load.

Worldwide operation

Due to the wide input voltage range of up to 500 V (+10%) you do not need to consider in which part of the world your machine is delivered. And of course our FC are accredited according to international standards. Approvals for all FC are available with UL 508 C, CSA-C22.2 No. 14 and CE. The integrated FC conform to protection category IP55, the FC in the electrical enclosure are designed according to IP20.

Compact

The in-line arrangement of the frequency converters allows a space saving installation in the electrical enclosure. The installation of the integrated frequency converters directly on the motor of the vacuum pumps and compressors features a fully developed decentralised concept. The installation afford is further reduced by integrated mains filters (0,37 kW ... 11 kW).

Flexible

Due to the modular design, the frequency converters can be optimised for your application . Thereby cost-effective drive solutions with high performance are possible - as if „stand-alone“ frequency converter with setpoint setting via potentiometer or as a network frequency converter with Profibus interface.

Simple

The FC is pre-parameterised and in most applications it can be put into operation immidiately. Only the adjustment to the switching mode of the motor (FC in electrical enclosure) and the relevant process parameters are required. This is easy to handle via a seperate small operating device (keypad) or a parametric software. Both allow quick and easy parameterisation and diagnostics of the converter by a clear menu structure and a user-guided initial operation

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