Overload protection

The pro-version of the i-C4C GO is certified Performance Level d for overload protection. The load cells are available in various types, including load pins and clamp-on load cells. All of them have an integrated analogue-to-CAN converter, making calibration easy. A range of complementary functions can be added, including slack rope detection and shock load protection.  


Safety does not tolerate compromises. The i-C4C GO PRO control system is certified Performance Level d for overload protection – a safety level higher even than that required by the mandatory standards.

The load cells are available in various types, including load pins and clamp-on load cells. Every load cell comes with built-in analogue-to-digital converters and connect over CAN bus to the i-C4C control module. The integrated calibration software makes calibrating your load easier than ever. Just pick up a known load, push a button, and the i-C4C will take care of the rest. This concept not only saves on installation time, it also makes the system less prone to errors. Since there is no external analogue-digital conversion between sensor and control, the system will not suffer from electro-magnetic interference, reduced accuracy, or poor resolution.

Technical information

The most basic overload protection (i-C4C Mini) consists of an i-C4C module on the hoist, which is connected to the load cell through a shielded CAN cable. It reads the digital value continuously and compares it to the established overload threshold values.

A display can be connected to the i-C4C through either a Wi-Fi or a cabled CAN bus signal. The display is usually mounted on the crane and can show a summed value where there are multiple hoists or a tandem set-up. Pre-alarms, refresh rates, and the rounding of numbers can be programmed.
A range of complementary parameters and functions can be added, including tare value weighing (though the system is not appropriate for weighing where a high level of accuracy is required), aggregating loads from multiple hoists, shock load detection, and slack rope detection. The slack-rope alert is triggered when a load is no longer detected and tare weight is decreasing, preventing further downward movement of the hoist.

Another option is to calculate the hoist’s safe working period (SWP), the remaining reliable operation lifetime. To calculate this value, multiple signals representing such factors as load, lifting movement and lowering movement are imported into the i-C4C.