two inputs for NTC temperature probes (parameter selectable PTC)
RS-485 serial output for connection to TelevisSystem / Modbus
simple and quick access thanks to the five keys on the front panel
EWDR products, available in 4 DIN rail-mounting size (70x85mm), are designed for applications that require the mounting of controllers on DIN rails, like electric boards for cells or, more generally, for applications with centralized electric board.
This line of products has been specifically designed by Eliwell to meet all the needs of customers working in the commercial refrigeration sector.
230Vac power supply
The EWDR981 controller has two analogue inputs for NTC temperature probes (parameter selectable PTC) and one voltage-free digital relay output for the compressor. The controller also has a 12V-20mA output to manage additional loads like alarms.
The defrost cycle is managed by the compressor stop.
The two analog inputs are used for temperature control and display purposes.
The value read by the probe is displayed with three digits plus the minus sign.
Reading with a decimal point is parameter-programmable.
The buzzer is optional.
All versions have a TTL connection to allow the use of the Copy Card quick programming accessory.
All models have two voltage-free programmable digital inputs.