Programmable Isolating Signal Converter UNICON The UNICON is a universal input, isolating signal converter ■ Universal configurable input stage ■ 3-port isolation to 500 or 1000Vdc ■ Very high accuracy, low cost ■ Isolated transmitter supply ■ Alarm relays, RS232/485 comms using MODBUS protocol ■ Ultra-compact, only 22mm wide PRICE INFORMATION AND ORDERING 3 Year Guarantee Options and ordering codes UNICON TRIP – JJXX – 6 Options With alarm relays Without alarm relays Comms RS232 TRIP D RS485 Description The unit can accept a signal from any common process sensors types and give an isolated industrial standard DC output either voltage or current The functionality of the unit is designed to be fully user configurable via the serial communications by using the RS232 or the RS485 programming lead, complete with the user-friendly PC Smart software. This software sets up the sensor type and range for the input signal, the high level output required and any intermediate processing. The signal processing options featured include: Thermocouple and RTD linearisation User-defined input linearisation Square-Root, power 3/2, power 5/2 Rate limiting Input filtering Trip amplifier Functionality The optional trip relays (UNICONTRIP model) can be configured to operate in all the normal fail-safe modes. In addition latching and time-delay functions are also available. A 24Vdc isolated transmitter supply is featured which can be used to power all standard two-wire transmitters. The operational status of the unit is indicated by the front panel LED, a slow flash showing normal operation, a fast flash sensor failure or open circuit input, or hard off indicating a power supply failure. The unit may be powered by any DC supply from 16 to 32 volts. Inputs The input types and ranges specified are our standard ones. Please contact our sales department for details on any application not specified in the ranges opposite. DC Current and Voltage 0-20mA, 4-20mA, 0-10mA, -50 to 50mA, into 10Ω 0-1V, 0-10V, 1-5V, -100 to 100V, into 1MΩ Thermocouples Types E, J, K, N, R, S, T and B all fully linearised Ranges are user configurable to any values Auto cold junction comp. Open cct T/C can drive either upscale, downscale or to preset value Resistance Thermometers 2 or 3 wire Pt100 or other standard type, linearised Ranges are user configurable to any values Outputs DC Current (Source or Sink) and Voltage 0-20mA, 4-20mA, 0-10mA into 1kΩ maximum 0-1V, 0-10V, 1-5V into a minimum 1kΩ The UNICON is designed to be user configurable, however the units can be supplied factory configured to your specification – Please contact our sales department with the following: Input type: Input range: Output type: Output range: Linearisation: Other options: Trip configuration: Comms option: eg mA, Volt, T/C, RTD eg 4-20, 0-10V, 0-500˚C eg mA, Volt eg 4-20mA, 0-10V eg None, √, √3/2, √5/2 Averaging, inversion etc eg H/L, failsafe, etc RS232 or RS485 UNICON Specifications Parameter Supply voltage Supply current Input impedance (volt) Input impedance (mA) Volt drop (mA input) Input resolution Overall accuracy Input accuracy Temperature coefficient Load resistance error Time constant (10-90%) Operating ambient Relative humidity Isolation voltage Surge voltage Notes Min 16V Typ 24V 100mA 1MΩ 10Ω 0.2V 0.001% ±0.04% ±0.005% ±0.1ppm/Ω 65ms Max 32V 200mA Comments 11Ω 0.22V At 20mA input Dependent on input type Input to analogue output Input to RS232 comms output ±0.06% 50ppm/˚C ±1ppm/Ω -15˚C 0% 500V 0 < RL < 1kΩ (mA output) T/C 250ms. See note 60˚C 90% 1kV option by special request 2.5kV for 50µS Transient of 10kV/µS Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. Device is protected against reverse polarity connection. Accuracy figures based on an ambient temperature of 20˚C. The time constant is dependent on which processing options have been selected. ▲ 104.5mm 98mm ▲▲ ▲ Dimensions and connections 123 Connection details 456 1. Power input -ve 2. Power input +ve ▲ 75mm ▲ 789 7. Input ground 8. RTD 3rd wire or T/C input +ve 9. RTD input +ve 10. Voltage input +ve 11. mA input +ve 12. 24V trans supply mA sink output +ve Output grouind Voltage O/p +ve mA source O/p +ve 13. Relay 1 common 14. Relay 1 15. Relay 2 common 16. Relay 2 10 11 12 ▲ 22.5mm ▲ 3. 4. 5. 6. Typical application Digital comms +24Vdc Type K Thermocouple Isolated 4-20mA sink High temp alarm Sensor fail alarm +24Vdc PRICE INFORMATION AND ORDERING PLC