Programmable Overloadprotection GHC-2
• Bridge Cranes, Gantry Cranes
• Container Cranes, STS Cranes
• Portal Cranes
• Harbor Cranes with booms
• Straddle Carriers, RTGs
• General applications in harbor and
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.
· 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
· 8 PWM outputs (part of the 16 digital outputs)
· 8 analogue outputs 4…20 mA optional
· 2 CANBUS interfaces