Programmable Overloadprotection GHC-2

GHC-2 is the safe but still economic solution to have an overload protection on cranes and other lifting equipment complient to the actual legal Standards. It is also suitable for a number of other applications in rugged conditions, including construction and harbor equipment where the SIL 2  and PL D safety standard is required.

 

The GHC-2 system consists of redundant sensors (dual channel) for forces, angles etc and a safety control (PLC) with or without multi-colour graphical display which are both programmed in World-Standard IEC 61131-3 language CoDESys ®. According to the visualisation requirements, there is a 2,8", a 4,3" and a 7" console available on choice.

 

GHC-2 fulfils its safety function by activating or shutting down crane functions via digital outputs and Relais.

 

The high SIL 2 category is fulfilled by having dual channel sensorsignals, which are checked by the system on discrepancies. The safety controller checks constantly the whole chain and will cut out on a separate independent diagnostics relay in case of any discrepancy to bring the crane back into a safe condition.

 

GHC-2 can be linked directly to the crane controls and other systems by CANBUS or by optional analogue outputs with 4…20 mA output current.

 

GHC-2 comes as a plug-and-play solution and can be calibrated without any special tools simply on the screen in a very short time.

 

 

Features:

 

·         Analogue and digital Load display

      ·         Tare function

      ·         Event-Datalogger with USB readout (option)

      ·         Alarm function on screen

      ·         Passcode protected Menu for

                  o   Calibration of sensors

                  o   Finetuning of analogue outputs (optional)

                  o   User defined Cutout limits setting

      ·         16 digital outputs for critical crane conditions

                 o   Overload cutout

                 o   Overload prewarning

                 o   Underload slackrope

                 o   Load unbalance

                 o   Single line overload

                 o    Separate cutoutpath for system/sensorerrors

      ·         8 analogue inputs (4…20 mA) for sensors; Choice of  

            sensors acc. to Cranetype

      ·         16 digital inputs for general purpose or incremental

            counters

      ·         8 PWM outputs (part of the 16 digital outputs)

      ·         8 analogue outputs  4…20 mA optional

      ·         2 CANBUS interfaces