R E C E I V E R
RECEIVER D2001/D2801
The Datek D2001/D2801 receiver has been designed for a long service life in harsh environments and for easy mainte- nance. Separate circuit boards for radio, logic devices and power supply with LEDs indicating operating status and informa- tion flow make any troubleshooting easy. The 11-pin socket-mounted industrial relays manage high loads (10 A/250 VAC), which means that the receiver can be directly connected to all kinds of appara- tus without the need for intermediate devices. Older cranes with large contac- tors and high power consumption can also be directly operated.
Robust and easy to maintain
The receiver is mounted inside a sturdy steel cabinet which complies with protection class IP65. If the receiver will be particularly exposed to such things as chemicals, sea water or road salt, a stainless-steel cabinet can be chosen as an option. The radio board, logic devices and voltage transformer are mounted in an aluminium case inside the receiver cabinet door.
The front of the case is fitted with trans- parent perspex, making it easy to see the operating status of each board. A quick-release coupling keeps the case in place, so it can easily be removed. This facilitates fast and easy replacement of important electronics, the moving of electronic devices between different receivers, troubleshooting in a more suitable location or sending the unit in for service.
The 11-pin industrial relays are socket- mounted, which makes them easy to replace if required. Connections to controlled applications are made using connection blocks with screw terminals. The individually detachable connections facilitate easy disabling and trouble shooting of different functions. This makes it easy to identify and replace the defective module, thereby avoiding longer downtime.
Comprehensive safety
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.
Radio transmission
The receiver’s frequency is adjusted to the required fre- quency band. For frequency shift transmitters, the receiver scans the frequency band until it finds the relevant trans- mitter with the correct ID code and protocol.
Feedback
The receivers in this series can be provided with two-way communication. Feedback to the transmitter unit is ob- tained 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.
Customised receivers
The receiver cabinet is available in two different sizes, depending on the number of functions/relays required. Receivers with up to 23 relays come in a cabinet measuring 380 x 380 x 210 mm. Receivers with more than 23 relays come in a cabinet measuring 380 x 600 x 210 mm.
D2001 can control up to 20 digital functions. D2801 can control up to 28 digital functions.
D2801 Extended can control more than 28 digital functions by using two receiver logic boards in a master/slave configuration. This makes it possible to have 56 simultaneous digital outputs from the receiver.
| GENERAL INFORMATION | |
| Dimensions | 380 x 380 x 210 mm (≤23 relays) or 380 x 600 x 210 mm (>23 relays) |
| Temperature range | -25° – 70°C |
| Protection class | IP65 |
| RADIO TRANSMISSION | |
| Frequency | 406 - 472 MHz |
| POWER SUPPLY | |
| Supply voltage | 48/110/230 VAC |
| OUTPUTS | |
| Digital outputs | ≤56 |
| Output relays | 10A/250 VAC |
| FEEDBACK | |
| Digital inputs | 6 |
| Digital / analogue inputs | 8 |