Datek uses synchronous data transmission, which means that each bit of data is checked very carefully. Even the smallest deviation from the norm is detected, and then the entire data packet that has been received is rejected. Each system has a unique ID code. If the transmitter’s ID code does not match the receiver’s, radio communication will never be established.
Both the protocol and its checksum are digitally verified by dual processors using different software. This provides what is known as a redundancy check. If the processors interpret the protocol differently, they immediately shut down all outputs. Such safety features as digitally verified transmission and redundancy checking are just two of the innovations which Datek has pioneered in the area of radio remote control. Since its founding in 1979 Datek has focused on developing safe radio remote controls, something we still do and will continue to do.
The receivers in this series can be provided with two-way communication. Feedback to the transmitter unit is obtained through semi-duplex, which means that only one frequency is utilised for both control signals to the receiver and feedback data. This is advantageous if availability of frequencies is limited, as you are only taking up one frequency instead of two.
The receiver’s standard design has eight proportional and thirteen digital output signals. All functions can be controlled simultaneously. If control of more functions is needed, the receiver can either be extended or functions can be shifted.
From the transmitter, many parameters can easily be calibrated online to ensure optimal control. Calibrated values, such as initial, maximum and micro speeds, are stored in three different memory banks. By means of a switch on the transmitter, the operator can access these memory banks to select a particular setting or suitable operating proper- ties. The calibrated values are stored in the receiver. If a new transmitter is ordered for the system, all settings are saved, and the operating properties remain the same. A further number of parameters can be preconfigured from the factory or adjusted by authorised personnel either online or using a PC. These include acceleration, retardation, linearity, cruise control and overloads. A system’s specific characteristics can be copied to another system or to a PC.
D6003K – the more compact receiver
For Danfoss hydraulics, a more compact version of the receiver with a sturdy fibreglass enclosure is available. This receiver measures only 220 x 120 x 90 mm and is therefore suitable for installation in confined spaces. The receiver can control eight proportional and 21 digital functions simultaneously.
• Pre-assembled cables with connectors for hydraulic valves and other functions
• Extension cable for aerial
• Cable control between transmitter and receiver
D2801 MIDI Extended
D2012 Hand-held transmitter