Veris LDRA6 User Manual

LDRA6 USER GUIDE

RLE TECHNOLOGIES

SEAHAWK LDRA6

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TECHNICAL SUPPORT

Personal assistance is available Monday through Friday, from 8:00 a.m. to 5:00 p.m. MST.

For more information, please visit the Documentation/Files section on the

LDRA6 webpage of our website at www.rletech.com

A request for assistance may be sent to support@rletech.com

Otherwise, please call us directly at: (970) 484-6510 - press “2” for technical support

The following information is located on the bottom of each LDRA6 unit.

Please have this information available whenever a technical support call is placed:

Product Model Number _____________________________________________________

Product Serial Number _____________________________________________________

Product Manufacture Date ___________________________________________________

User Guide: LDRA6 Table of Contents

TABLE OF CONTENTS

Chapter 1: Product Overview ........................................................................................................................................2

1-1 Description......................................................................................................................................................2

1-2 LDRA6 Front Panel Indicators .......................................................................................................................2

1-2.1 Zone LEDs ...........................................................................................................................................2

1-2.2 Power LED...........................................................................................................................................2

1-2.3 Audible Alarm......................................................................................................................................2

1-2.4 Quiet/Test/Reset Switch.......................................................................................................................2

Chapter 2: Connections & Settings ...............................................................................................................................4

2-1 LDRA6 Board .................................................................................................................................................4

2-1.1 TB1 – Power ........................................................................................................................................5

2-1.2 POW1 – Power.....................................................................................................................................5

2-1.3 TB2, TB3 – Zone Inputs.......................................................................................................................5

2-1.4 TB5, TB4 – Zone Alarm Relays...........................................................................................................5

2-1.5 TB6 - Summary Relay..........................................................................................................................6

2-1.6 TB7 – RS485 Connection.....................................................................................................................6

2-2 SW1 - Relays and Alarm.................................................................................................................................7

2-2.1 SW1, Position 1: Summary Relay Supervised / Unsupervised ............................................................7

2-2.2 SW1, Position 2: Relays Latched / Unlatched......................................................................................7

2-2.3 SW1, Position 3: Zone Relay Linkage .................................................................................................7

2-2.4 SW1, Position 4: Zone Relays Supervised / Unsupervised .................................................................. 7

2-2.5 SW1, Positions 5: Leak Alarm Delay...................................................................................................7

2-2.6 SW1, Positions 6: Summary Relay Silence-Ability .............................................................................7

2-2.7 SW1, Positions 7 and 8: Re-alarm Time ..............................................................................................8

2-3 SW2 – Modbus Addressing.............................................................................................................................8

2-4 SW4 through Sw9 ...........................................................................................................................................8

2-5 R1 – Leak Detection Cable Sensitivity Setting ...............................................................................................8

Chapter 3: Installation ...................................................................................................................................................9

3-1 Before You Begin ...........................................................................................................................................9

3-2 Connecting the Water Leak Detection Cable ..................................................................................................9

3-2.1 Secure the Cable to the Floor ...............................................................................................................9

3-2.2 Recommended Cable Installation.......................................................................................................10

3-3 Apply Power to the Unit ...............................................................................................................................11

3-3.1 Power via Wall Adapter .....................................................................................................................11

3-3.2 Power via Direct Line.........................................................................................................................11

Chapter 4: Start-Up......................................................................................................................................................12

4-1 Boot-Up.........................................................................................................................................................12

4-2 Displaying the Help Menu ............................................................................................................................12

4-3 Function Commands .....................................................................................................................................13

4-3.1 c – Contact Closure Settings ..............................................................................................................13

4-3.2 ld – Leak Delay Setting......................................................................................................................13

4-3.3 sens – Leak Zone Sensitivity.............................................................................................................. 13

4-3.4 e – View Eeprom Data .......................................................................................................................14

4-3.5 er – Erase Eeprom Data – Restores Factory Defaults.........................................................................14

4-3.6 mbb – View / Change Modbus Baud Rate ......................................................................................... 14

4-3.7 mbp – View / Change Modbus Parity ................................................................................................14

4-3.8 mr – Reset Modbus Port and Statistics...............................................................................................14

4-3.9 m – View Modbus Port Settings and Statistics...................................................................................14

4-3.10 t – Toggle Modbus Trace On/Off.......................................................................................................15

4-3.11 z – Display Leak Zone Readings........................................................................................................15

4-3.12 sr – summary relay mode ...................................................................................................................15

4-3.13 zr – zone relay mode ..........................................................................................................................15

4-3.14 x – Exit to Bootloader ........................................................................................................................15

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Table of Contents User Guide: LDRA6

Appendix A: Modbus Communications ..................................................................................................................... 16

A-1 Modbus Implementation of the LDRA6....................................................................................................... 16

A-1.1 Modes of Transmission ..................................................................................................................... 16

A-1.1.1 Slave Address Field ................................................................................................................ 16

A-1.1.2 Function Field ......................................................................................................................... 16

A-1.1.3 Data Field................................................................................................................................ 16

A-1.1.4 Error Check Field.................................................................................................................... 16

A-2 Packet Communications for the LDRA6...................................................................................................... 17

A-2.1 Read Output Registers....................................................................................................................... 17

A-2.2 Read Input Registers.......................................................................................................................... 18

A-2.3 Present Single Register...................................................................................................................... 19

A-2.4 Present Multiple Registers................................................................................................................. 19

A-3 RTU Framing ............................................................................................................................................... 20

A-4 Modbus Mirroring ........................................................................................................................................ 21

Appendix B: Troubleshooting .................................................................................................................................... 22

Appendix C: Technical Specifications........................................................................................................................ 23

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User Guide: LDRA6 List of Figures and Tables

LIST OF FIGURES AND TABLES

Figure 1-1: LDRA6 Front Panel Indicators ..................................................................................................................3

Figure 2-1: LDRA6 Board............................................................................................................................................4

Figure 3-1: Water Leak Detection Cable......................................................................................................................9

Figure 3-2: Cable Installation Methods ...................................................................................................................... 10

Table 1: Read Output Registers Packet Structure.......................................................................................................17

Table 2: Output Registers...........................................................................................................................................17

Table 3: Read Input Registers Packet Structure .........................................................................................................18

Table 4: Input Registers..............................................................................................................................................18

Table 5: Status Flags (Register 30001).......................................................................................................................18

Table 6: Status Flags (Register 30008).......................................................................................................................19

Table 7: Present Single Register Packet Structure......................................................................................................19

Table 8: Present Multiple Registers Packet Structure .................................................................................................19

Table 9: Modbus Slave Address................................................................................................................................. 20

Table 10: Query Sample.............................................................................................................................................20

Table 11: Response Sample........................................................................................................................................20

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Chapter 1: Product Overview User Guide: LDRA6

CHAPTER 1: PRODUCT OVERVIEW

1-1 DESCRIPTION

The LDRA6 is a complete monitoring system that detects and reports the presence of water and other

conductive liquids, as well as monitors dry contact alarm points. The LDRA6 couples SeaHawk Water

Leak Detection Cable (SC) with an advanced control head to monitor six individual zones. When a

conductive liquid comes in contact with the SC cable, an alarm sounds and the summary alarm relay and

zone relay activate. The LED that corresponds with the appropriate zone also illuminates and an audible

alarm is activated. Each LDRA6 input can also be configured to detect a dry contact’s change of state (NO

or NC) and annunciate the alarm on the front panel.

The LDRA6 is a supervised system - it continuously monitors the cable for leaks and cable integrity. A

cable break causes a cable fault indication. An alarm sounds and the appropriate zone relay and the

summary alarm relay activate. The appropriate LED changes to indicate a cable fault has occurred.

The dry contact relays in the LDRA6 may be configured as supervised or unsupervised (see section 2-2 for

configuration options). Each zone can be configured with unique, individual settings. When the user

specified alarm condition occurs, the LDRA6 activates the appropriate relay and alarm LED.

NOTE

The LDRA6 produces an alarm in the following conditions:

 Leak Detected  Cable Fault  Dry Contact Alarm Condition (User Specified)

1-2 LDRA6 FRONT PANEL INDICATORS

1-2.1 Zone LEDs

One tri-color LED for each zone.

Default Leak Detection Cable Setting:

On solid and green for normal cable conditions. Flashes quickly and turns red if a leak is detected in the zone. Flashes quickly and turns yellow if a cable fault is detected in the zone. On solid once an alarm is silenced.

Default Dry Contact Setting:

On solid and green for normal, non-alarm conditions. Flashes quickly and turns red (by default) if an alarm condition is detected in the zone. On solid once an alarm is silenced.

1-2.2 Power LED

On (green) as long as power is on.

1-2.3 Audible Alarm

Activates when an alarm condition is detected. Silenced with the Quiet/Test/Reset switch.

1-2.4 Quiet/Test/Reset Switch

During alarm, the audible alarm is silenced, and any LED(s) in alarm will glow solidly. If the alarm goes

away, the LED(s) will flash slowly. Hold down the Quiet/Test/Reset switch to reset all alarms and

complete and self test cycle. If any alarms still exist, the unit will not reset the corresponding zones.

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User Guide: LDRA6 Chapter 1: Product Overview

Power LED

Test / Reset/ Silence Switch

Leak /Cable Detected LEDs

Figure 1-1: LDRA6 Front Panel Indicators

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