Thermocable ProReact DSCU-EN Installation Instructions Manual

Digital sensor control unit

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ProReact Digital Sensor Control Unit
(DSCU-EN)
Installation Instructions
Linear Detection Technology Made Simple
www.thermocable.com
World leading
linear detection
Page 1 of 17
Page 1 of 17
Revision 1.1
Revision 1.1
Document No. ProReact DSCU-EN Installation Manual
Document No. ProReact DSCU-EN Installation Manual
Sept 2019
Sept 2019

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Summary of Contents for Thermocable ProReact DSCU-EN

  • Page 1 ProReact Digital Sensor Control Unit (DSCU-EN) Installation Instructions Linear Detection Technology Made Simple www.thermocable.com Page 1 of 17 Page 1 of 17 Revision 1.1 Revision 1.1 Sept 2019 Sept 2019 Document No. ProReact DSCU-EN Installation Manual Document No. ProReact DSCU-EN Installation Manual...
  • Page 2: Table Of Contents

    - Fault / Alarm Conditions Testing and Verification Page 14 Two-wire RS-485 Modbus RTU/ASCII Communications Page 15 Resetting the ProReact DSCU-EN Page 16 Glossary Page 17 Page 2 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
  • Page 3: Important Guidelines - Read Before Commencing Installation

    Only use Thermocable ProReact EN Digital Linear Heat Detection cable with the DSCU-EN sensor control unit. Test the Digital Linear Heat Detection cable before connecting it to the DSCU-EN using a multimeter.
  • Page 4: General Overview

    The unit is intended to be installed between the Digital Linear Heat Detection cable and dual zone module for monitoring up to two zones of Thermocable a conventional or addressable fire alarm control panel. It has power, ProReact EN Digital Linear Heat Detection (LHD) Cable.
  • Page 5: Technical Specifications

    (28AWG) to 4mm (11AWG) Supervised Circuits: Power, Input Zone 1 & Input Zone 2 Inputs: Up to two Class B zones of Thermocable ProReact EN Digital LHD Cable ...Max Zone Length 1000m (3,280ft) ...Min Zone Length ...End of line resistor 3.6kohm (included)
  • Page 6: Installation

    Overview The DSCU-EN allows accurate location of an alarm point along a length of Thermocable ProReact EN Digital Linear Heat Detection (LHD) cable. It continuously monitors up to two zones of Digital LHD cable for a fault (open circuit) or an alarm (overheat or fi re condition). Because of the wide range of applications that Digital LHD cable can be used for, it may not always be possible, or be too time consuming, to locate where along the cable an alarm has occurred.
  • Page 7: Operating Modes

    DSCU-EN PCB. Do not remove or break this jumper when the system is used with an EN54 fire alarm system in the wiring configuration shown. Page 7 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
  • Page 8 DSCU-EN PCB. Do not remove or break this jumper when the system is used with an EN54 fire alarm system in the wiring configuration shown. Page 8 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
  • Page 9: Useful Information

    In certain applications it may be desirable or necessary to use non- The DSCU-EN is intended to be wall-mounted. 4 holes should be drilled sensing leader cable between the ProReact DSCU-EN unit and the according to the mounting dimensions given in fi gure 2. The Digital LHD cable.
  • Page 10: Commissioning

    IS barriers and LHD cable connected to the DSCU-EN unit, short out the connection at the start of the LHD cable. Select “Yes” and press Set to continue. Page 10 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
  • Page 11 18. Select the number of stop bits for the Modbus RTU/ASCII output. (1 or 2). Stop BITs 19. Select the parity for the Modbus RTU/ASCII output. (even/odd/none). PariTY Even Page 11 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
  • Page 12: Normal Operation

    {Zone 2: OK Either of the display screens above and a single flashing Power light (green colour) should be visible when ProReact DSCU-EN unit is in normal operation. Page 12 of 17 Revision 1.1 Sept 2019 Document No.
  • Page 13: Fault/Alarm Conditions

    The zone 1 and zone 2 alarm LEDs will light continuously. {Zone 1 : 300M {Zone 2: 301M Page 13 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
  • Page 14: Testing And Verification

    Zone 2: FAUL T both SET and SELECT buttons for 10s or more until the device resets. Interlock mode {Zone 1 : FAUL T {Zone 2: FAUL T Page 14 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
  • Page 15: Two-Wire Rs-485 Modbus Rtu/Ascii Communications

    Two-wire RS-485 Modbus RTU/ASCII Communications The Thermocable ProReact DSCU-EN includes a two wire RS-485 Modbus output which can be enabled to output the status of each zone of Digital Linear Heat Detection cable. The DSCU-EN Modbus output supports the Modbus RTU/ASCII protocol and the following functions: •...
  • Page 16: Resetting The Proreact Dscu-En

    Modbus setup will all require selecting after this procedure. To reset the ProReact DSCU-EN unit back to the factory state, when the unit is powered up and in normal operation (see step 20 in the Commissioning procedure), press and hold the SET and SELECT buttons for a minimum of 10 seconds continuously.
  • Page 17: Glossary

    Zone – a single circuit of ProReact linear heat detection cable connected across either a ProReact DSCU-EN or a fi re panel and an end of line resistor Email: info@thermocable.com...

This manual is also suitable for:

A1397

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