IRCDS Collision Avoidance System with Installer Settable Operating Zones Horizontal Mode (standard). The IRCDS collision avoidance system is the ultimate in crane detection. Continuous communication between opposing equipment or obstacles ensures that Detection can be achieved in the horizontal axis with a very high degree of reliability. In the horizontal mode, the system handshakes with a continuous security coded signalling system to a partner duplex transceiver fitted to opposing equipment or target. Each system is programmed to transmit and receive installer settable coded signals, which are received and verified by the partner transceiver hardware, when validated, the coded signal is acknowledged and thus a 'handshake' is achieved between each system and this is continually maintained and refreshed every 100mS while power to the Crane is available. The standard maximum communication range is 400M approx. with operational zones most effectively set up between 2 and 40M. Vertical Mode (project specific). For vertical axis applications where different levels of gantries and cranes are in operation, and where detection is required to prevent cranes passing over or under with the hook or load in a position likely to cause a collision between a crane and suspended load, vertical detection options operate using a coded and defined sector transmission system. This method enables several configuration modes which are usually engineered for the project, which can include portable sets to suit obstructions in locations where large machinery is being constructed. Interface. The purpose designed and constructed sheet steel Central Interface Unit (CIU) enclosure to IP55, houses a single high quality microprocessor controlled printed circuit board which process the systems digitally coded signalling data, which is received and transmitted, by a DUPLEX transceiver (one or two may be used for single or two direction detection). Electrical supply and interface connections to the CIU are easily made via the in built plug and socket terminal rail with access through a provisioned access port which will accept a standard 20mm compression gland. The IRCDS DUPLEX Transceivers are connected by pre wired IP67 polarised connectors. The system incorporates 3 zone relays as standard which can be programmed for the required detection distances and interfaced to warning devices, directional and speed control circuits as required. Each zone can be set to suit the travel speeds and stopping capability when fully laden. BatBak (Battery Back Up System). Both horizontal and vertical options require a continuous power supply to maintain an active interface circuit for the applied to equipment. Because the IRCDS system usually forms part of an integrated system, for periods of Plant downtime for maintenance or repairs, the BatBak (Battery Back Up System) is available to power the IRCDS hardware to maintain the communication link with active 'in service' applied to equipment.