Isolated universal input Converter DAT5021 with DIP switch programmability.
GENERAL DESCRIPTION
The isolated universal Converter DAT5021 is a Din Rail mount signal transmitter with DIP Switch programmability. The input can be mA, V, mV, or potentiometer. The DAT5021 will provide a 4-20mA or voltage output signal.
The DAT5021 is accurate to 0.1% full scale and has less than 0.01%/'f thermal drift.
The DAT5021 provides on the input side an auxiliary supply source to power up a loop. It also provides an auxiliary supply source on the output side so both active and passive loads can be connected.
It is possible to set the minimum and maximum values of the input and output ranges in any point of the scale, keeping the minimum span shown in the table below.
The DAT5021 is isolated between the power supply and the input/output to 2000V, eliminates the effects of any ground loops and allows the use of the transmitter in heavy environmental conditions found in industrial applications.
The DAT5021 is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DAT5021 is housed in a plastic enclosure of 12.5 mm thickness suitable for DIN rail mounting in compliance with EN-50022 and EN-50035 standards.
USER INSTRUCTIONS
The converter DAT5021 must be powered by a direct voltage included in the 18 V to 32 V range. The power supply must be applied between the terminals Q
(+Vdc) and R (GND).
The output connections must be made as shown in the section "Output connections".
Voltage output: between the terminals L (Out) and G (Out GND); passive current output: between the terminals L (Out) and G (Out GND) for the sink
currents; active current output : between the terminals I (Aux supply out) and L (Out) for the source currents.
The input connections must be made as shown in the section "Input connections".
Voltage input: between the terminals N (Input V) and P ( Input GND ); passive current input: between the terminals O (Input I) and P ( Input GND ) for the
sink currents; active current input for the source current ( for example coming from a passive transmitter) : between the terminals M (Aux supply) and O
(Input I).
The configuration of input and output ranges values is made by DIP-switches (refer to the section “Input ranges table” and “Output ranges table”).
After the converter configuration, it is necessary to calibrate it using the ZERO and SPAN regulations; this operation is illustrated in the section “DAT 5021:
Configuration and calibration”.
To install the device refer to the section “Installation instructions”.
TECHNICAL SPECIFICATIONS
INSTALLATION INSTRUCTIONS
The DAT5021 device is suitable for fitting to DIN rails in the vertical
position.
For optimum operation and long life follow these instructions:
When the devices are installed side by side it may be necessary to separate them by at least 5 mm in the following case:
- If panel temperature exceeds 45°C and at least one of the overload conditions exists.
- If panel temperature exceeds 35°C and both the overload conditions exist.
Overload conditions:
- Use of input auxiliary supply (terminal M).
- Use of output auxiliary supply (terminal I ).
Make sure that sufficient air flow is provided for the device avoiding to place raceways or other objects which could obstruct the ventilation slits.
Moreover it is suggested to avoid that devices are mounted above appliances generating heat; their ideal place should be in the lower part of the panel. Install the device in a place without vibrations.
Moreover it is suggested to avoid routing conductors near power signal cables (motors, induction ovens, inverters, etc...) and to use shielded cable for connecting signals.
Warning: when the voltage input (terminal N) is not used, it is suggested to not connect cable to it or connect the terminal N to the terminal P.
DIMENSIONS (mm)
CONFIGURATION
1) Calculate the difference between the maximum and the minimum value of the input range (Span).
2) Refer to the “ Input ranges table " and determine in the column " SPAN" the position where the calculated value is included, then referring to the position obtained determine in the column “ZERO”, the line in which the minimum value is included . In the correspondent line is shown as to set the DIP-switches .
3) Set the DIP-switches as indicated .
4) Connect on input a 3 wire Pt100 simulator programmed to supply the maximum and minimum values of the input range or a fixed resistor of the same values.
5) Set the simulator at the minimum temperature or to connect a fixed resistor correspondent to the minimum value .
6) By the ZERO potentiometer calibrate the output at the 4 mA value .
7) Set the simulator at the maximum temperature or to connect a fixed resistor correspondent to the maximum value .
8) By the SPAN potentiometer calibrate the output at the 20 mA value .
9) Repeat the operation from the step 5 to the step 8 until the output value will be correct ( 3 attempts typically required).
Configuration ex. : in: 4÷20 mA out 0÷10 Vdc
Input switches configuration (SW1): On, Off, On, Off.
Output switches configuration (SW2): Off, On, Off, Off, Off.
CONNECTIONS
LOAD CHARACTERISTIC
ISOLATION STRUCTURE
