Kaeser Sigma Control 2 internal compressor controller

The Sigma Control 2 (SC2) from Kaeser is a PC integrated into a compressor. All current Kaeser rotary screw compressors and mobile air compressors are equipped with the product.

The controller is equipped with its own web server, which allows direct communication with the compressor via intranet/internet. Within the scope of the company’s teleservice facility, for example, password-protected compressor settings and operational data can be called up and adjusted on any PC with an internet browser without the need for additional software. Compressor operation and maintenance are therefore made even easier, as is regular monitoring of cost and energy efficiency.

The operating panel is dominated by an LED backlit, 256 x 128 pixel LCD screen on which plain text messages can be easily read. Nine LED indicators signal additional operational parameters and conditions, and 13 membrane keys labelled with easy-to-understand icons ensure unmistakeable input of the various commands.

The operating panel communicates directly with the product’s main control system. It comes with four interfaces for active and passive communication: with compressor (IO-BUS for up to six I/O modules); with Sigma Frequency Control speed controllers; with the internet and/or computer networks; with the user’s various control systems via plug-in communication modules.

Documentation of all operating conditions and parameters is essential to ensure optimum compressor performance. This task is facilitated by the product’s memory feature, data from which can be easily and quickly uploaded to a computer thanks to the addition of an SD card slot. The same slot makes it possible to transfer and install software updates onto the unit using a pre-loaded SD card. Updates can be carried out quickly and all operational settings are retained.

The product provides high-level security with its integrated RFID functionality. Not only does the technology ensure secure log-in, it also safeguards the system against unauthorised changes or operation.