GASTRON GIR-3000W Manual de usuario

GIR-3000W

Instruction Manual

Headquarters / Engineering research laboratory :

23 Gunpo Advance d Industry 1-ro(Bugok-dong), Gunpo-si, Gyeonggi-do

Tel +82-31-490-0800 Fax +82-31-490-0801

Yeongnam business office / Plant :

55 Gonghangap-gil 85beon-gil, Gangseogu, Busan Metropolitan City

Tel +51-973-8518 Fax +51-973-8519

E-mail : [email protected]

www.gastron.com

Read in detail for correct use.

Gas & Flame

Detection System

GIR-3000W

Instruction Manual

www.gastron.com

02_03

We sincerely thank you for purchasing the product of Gastron Co. Ltd.

Our Gastron Co.Ltd. is a company specialized in Gas detector and Gas Monitoring System, being recognized

by many consumers due to the best quality and use convenience. We always enable you consumers to find

desired products nearby and are ceaselessly studying and striving for development of Gas detectors satisfying

customers. From now on, solve all anguishes concerning Gas detector with the products of Gastron Co. Ltd,

We Gastron Co. will take a responsibility and give you satisfaction.

In the present instruction manual, operation method for Gas detector as well as simple methods for

maintenance and repair, etc. are recorded If you read it in detail and keep it well, for reference when you

have questions, then it will give you much help.

* KOSHA GUIDE : P-135/6-2018

Calibration should be executed periodically at periods required by the manufacturer.

When abnormalities occur after purchasing the product,

please contact the following address.

· Address : 23 Gunpo Advanced Industry 1-ro,

Gunpo-si, Gyeonggi-do

· Tel : 031-490-0800

· Fax : 031-490-0801

· URL : www.gastron.com

· e-mail : [email protected]

The present product and the product manual can be changed without advance notice for performance improvement

and use convenience of the product.

■ForaccurateoperationofGasdetector,checkupandcalibrateformorethanonceinevery6months.

( * See No. 13 of KOSHA GUIDE : P-135-2013 / 8.3 paragraph on qualification and calibration)

■ForaccurateoperationofGasdetector,checkupandcalibrationwithcalibrationgasbefore

measurement is recommended.

■Whennotcalibrated,itmaycausemalfunctionoftheequipmentduetoproblemsresultingfrom

Sensor aging.

■Whenthepresentinstrumentshouldbedismantled,thosewithprofessionalskillsforGasdetector

should conduct the operation.

■Forpowersupplycable,wirespecificationsshouldbedeterminedbyreferringtotheitemof"Length

 ofinstalledcable".

■ForthecontentsoncheckupandcalibrationofGasdetector,pleaseuseourcompany'sengineering

department , e-mail, or web site.

Greetings

www.gastron.com

04_05

ContentsContents

GIR-3000W

Instruction Manual

6.2. Gas measuring state (Measuring Mode) ·········································································································· 21

6.3. Operation Flow ·················································································································································· 22

6.4. Menu Configuration Table ································································································································ 23

7. System Mode ······························································································································································ 25

7.1. PROGRAM MODE ············································································································································· 25

7.2. CALIBRATION MODE········································································································································· 26

7.2.1. Zero Calibration··································································································································· 26

7.2.2. Span Calibration·································································································································· 27

7.3. ALARM MODE··················································································································································· 28

8. Troubleshooting·························································································································································· 30

8.1. Fault List ····························································································································································· 30

8.2. Recovery List······················································································································································· 31

9. Interface configuration·············································································································································· 32

9.1. MODBUS RS485 ················································································································································ 32

9.1.1. Interface setting ·································································································································· 32

9.1.2. MODBUS RS485 Register map ··········································································································· 32

10. Outline drawing and Dimensions···························································································································· 33

10.1. Standard Type ···················································································································································· 33

10.2. Warning light GTL-100 ····································································································································· 34

10.3. Upon coupling of warning light ······················································································································· 35

10.4. GIR-3000W Remote Type·································································································································· 36

11. Notes before installation··········································································································································· 37

11.1. Selection of installation place(Data from occupational safety and health regulations) ·································· 37

11.2. Selection of installation place (Data from safety management regulations for high-pressure gas) ··············· 37

11.3. Notes upon installation······································································································································ 38

12. Revision record···························································································································································· 39

1. Overview ······································································································································································ 6

2. Structure······································································································································································· 6

3. Specification ································································································································································ 7

3.1. Basic Specifications ············································································································································ 7

3.2. Mechanical Specifications ································································································································· 7

3.3. Electrical Specifications (Standard Type)··········································································································· 8

3.4. Environmental Specifications ···························································································································· 8

4. Name and description of each part ························································································································ 9

4.1. Components of transmitter······························································································································· 9

4.2. Components of infrared sensor ························································································································ 11

4.3. Components of GTL-100 ·································································································································· 12

4.4. Description of LAMP functions ························································································································· 13

5. Installation···································································································································································· 12

5.1. Separation of Housing Cover ··························································································································· 12

5.2. Configuration of Main PCB ······························································································································· 12

5.3. Configuration of power supply and 4-20mA terminal····················································································· 14

5.3.1. Wire connection diagram of driving method for 4~20mA Source ··················································· 14

5.3.2. Wire connection diagram of driving method for 4~20mA Sink························································ 14

5.3.3. Wire connection diagram of driving method for 4~20mA 3Wire Sink············································· 16

5.4. Configuration of Relay terminal and communication terminal········································································ 16

5.4.1. Configuration of terminal ··················································································································· 16

5.4.2. Setting for Relay mode························································································································ 17

5.4.3. Setting for RS485 MODBUS ··············································································································· 17

5.5. Configuration of sensor connecting terminal ·································································································· 18

5.6. Configuration of Remote Type connection······································································································ 19

5.7. Length of installed cable···································································································································· 20

6. Operation Flow for sensor······································································································································ 21

6.1. Initial operation state (Power On) ····················································································································· 21

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06_07

ITEMS SPECIFICATION

Measuring Type Diffusion type

Measuring Value Display

- LCD or OLED Display

- Green, Red, Yellow LED

- Sound Output(95dB)

Measuring Method Non-Dispersive Infrared(NDIR)

Detectible Gas

Combustible Gas

Carbon dioxide(CO2)

Carbon monoxide(CO)

Measuring Range

Combustible: 0~9,999ppm / 0~100% LEL /

0~100% VOL

CO₂: 1.0% ~ 100% VOL

CO: 5% ~ 100% VOL

Accuracy ≤±3%/FullRange

Zero Drift ≤2%/FullRange

Response Time 90% of full scale in less than 10 sec

Approvals Classification

KCs: Ex d llC T6,T4

ATEX/IECEX: II 2 G Ex d IIC Gb T4,T6

SIL2, MED, ABS, DNV

Interface Analog 4-20mA current interface

HART Interface HART REV7(Option)

Option HART Board

MODBUS RS485 Board

Warranty Body(Transmitter and Lamp) 2Year

Sensor 1Year

3.2. Mechanical Specifications

ITEMS SPECIFICATION

Explosion Proof type Pressure-resistant and explosion-proof enclosure

Dimension - Transmitter: 156(W) × 322(H) × 110(D) mm

- Lamp: 83.8(W) × 85(H) × 48(D) mm

Weight including Sensor and Lamp App. 3.7kg

Mounting type Wall mount

Mounting Holes Ø7±0.1

Cable inlet 3/4"PF(1/2"or3/4"NPT)

Body material

Body (Transmitter) aluminum alloy

Sensor Stainless Steel (STS316)

Lamp Cover PC

Lamp Body Stainless Steel (SUS304)

GIR-3000W

Instruction Manual

[Figure 1. GIR-3000W Overview]

Infrared Gas

Sensor Module

(GSA920)

Warning Light

(GTL-100)

Main Board

(Transmitter)

+24V DC

4-20mA Analog

Signal Output

Display Board

(User Interface)

Transmitter enclosure

Safety Power Supply Unit

(24VDC)

Safety Controller

(PLC or DCS)

GIR-3000W Gas Detector

Hazardous Area (Filed) Safe Area

GIR-3000W infrared Gas detector has been developed to prevent accidents beforehand by detecting various leaked

gases generated in industry fields such as plants producing or using combustible gas, carbon monoxide, carbon dioxide,

gas storage place, manufacturing processes, etc.

GIR-3000 infrared Gas detector is installed in areas with a risk of gas leakage to display measured values with LCD, OLED

installed in the detector by continuous detection of gas leakage, providing DC 4~20mA standard output, Isolation RS-

485 communication signal, HART communication, and Relay contact signal of gas Alarm, and warning light is coupled

allowing transmission of Alarm state by visual and audio signals.

Also,DC4~20mAstandardoutputcanconnectuptothemaximumof500m(uponusingCVVSorCVVSB1.5sq↑Shield

Cable) in transmission distance of output signals of Gas detector and receiving unit while RS-485 communication signal

can be transmitted up to1,000m (upon using RS-485 exclusive line).

GIR-3000 body is made of aluminum alloy material in a structure of complete pressure-resistant explosion-proof type(Ex

d IIC T6), can be installed in the areas with a risk of leakage and explosion of all combustible gases, displaying leakage

situation of gas at the installed field by embedding LCD, OLED in the Gas detector. Inside structure is comprised of liquid

crystal unit displaying measured values, connector unit outputting measured values (DC 4~20mA) or Isolation RS-485

communication (Option) Signal, HART communication signal, and Alarm Signal to outside, and 2 PCB Boards. Outside

structure is comprised of Sensor unit for detection of gas leakage and Cable lead-in unit, and warning light. Warning

light is also made of SUS material in complete pressure-resistant, explosion-proof structure. Maintenance and repair

operations are convenient since calibration operation can be conducted outside of the Gas detector body by using

Magnet-bar.

2. Structure

1. Overview

3.1. Basic Specifications

3. Specications

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08_09

4. Name and description of each part

4.1. Components of transmitter3.3. Electrical Specifications (Standard Type)

ITEMS SPECIFICATION

Input Voltage(Standard)

※CustomersuppliedPSUmustmeet

requirements IEC1010-1 and CE

Marking requirements.

Absolute min:

Nominal:

Absolute max:

Ripple maximum allowed:

18V

24V

31V

1V pk-pk

Wattage Max. wattage:

Max. current:

9.6W @+24 VDC

400mA @+24 VDC

Analog output Current

0-20mA(500 ohms max load)

Allreadings±0.2mA

Measured-value signal:

4mA(Zero) to 20mA(Full Scale)

Fault:

0-100% LEL:

100-109%LEL:

Over 110% LEL:

Maintenance:

0mA

4mA - 20mA

21.6mA

22mA

3mA

Analog output current ripple & noise max ±20uA

Relay contact Alarm1, Alarm2, Fault Relay

Rated 1.0 A @ 30VDC or 0.5 A @ 125 VAC

Wiring requirement

Power CVVS or CVVSB with shield

Analog CVVS or CVVSB with shield

RS485 STP(Shielded Twisted Pair)

Signal transmission distance

(Cable Connection Length)

Analog 2500m

RS485 1000m

EMC Protection: Complies with EN50270 No ITEMS SPECIFICATION

1Housing Protect PCB Board embedded inside Sensor and

Housing from change of outside environments and impact.

2Main PCB

Amplify output signals produced by Sensor, and convert to standard output of DC 4~20mA for

transmission, and output Isolation RS- 485 communication Signal and

Alarm relay contact signal. Also, send Data to be displayed in Display unit.

3Display PCB Display Data received from MAIN PCB in LCD or OLED, and

display the current Event situations by Power lamp, Alarm lamp, Trouble lamp

4Power/Signal

Terminal

CN12 is comprised of power supply of DC18-31V and

DC 4~20mA standard output Connection terminal (VISO, +V, mA, -V, ETH).

5Alarm signal

Terminal

CN8 is Alarm signal connection terminal, as a terminal where

Trouble, Alarm1, Alarm2 Relay contact are outputted.

6RS-485 signal terminal CN3 is Isolation RS-485 communication signal connection terminal(A, B).

7Sensor terminal CN10 is Sensor connection terminal. (RD, WH, BK, BE)

8Program Downloading

Connector Connector that allows downloading of product program.

3.4. Environmental Specifications

ITEMS SPECIFICATION

Operation Temperature main body -40to80℃

sensor -40to80℃

Storage Temperature main body -40to80℃

sensor -40to80℃

Operation Humidity main body 5 to 99% RH (Non-condensing)

sensor 5 to 99% RH (Non-condensing)

Pressure Range 90 to 110KPa

Max. air velocity 6m/s

[Figure 2. Components of GIR-3000W Transmitter]

3. Specications

GIR-3000W

Instruction Manual

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10_11

4.1. Components of transmitter

No ITEMS SPECIFICATION

9Power lamp Lamp is lighted when power switch is turned On

10 Trouble lamp Lighted when abnormality occurs in circuit or sensor sensitivity, etc.

11 Alarm1 lamp Lighted when gas is leaked to become higher than Alarm1 level

12 Alarm2 lamp Lighted when gas is leaked to become higher than Alarm2 level

13 Function key

When contact is made for more than 2sec by using Magnet-bar upon parameter setting, it is

converted to Program mode. (Program mode, Calibration mode, Test mode, etc.) Also, it is used

when Data is inputted for setting.

14 Reset key

Converted when cancelled during parameter setting or touched for more than once by using

Magnet bar to return to the previous state. (Converted to the previous mode by one stage at a

time upon every touch.

15 ↑(Up)key Converted or transformed by one stage at a time when touched once by using Magnet-bar upon

mode conversion or figure transformation (transformed to the higher stage)

16 ↓(Down)key Converted or transformed by one stage at a time when touched once by using Magnet-bar upon

mode conversion or figure transformation(transformed to the lower stage)

17 External earth - Outside grounding for protection from outside noise or strong electric field

- For grounding cable, use conductor larger than 4mm upon coupling connection

18 Mount hole Hole to mount Gas Detector onto outer wall and other installation place.

19 Cover fixed screw(M4) Fix with a hexagonal lens bolt to prevent drop-off due to outside impacts after assembly of

Detector Housing Body and Detector Housing Cover

20 Sensor thread Mounting port for mounting of infrared gas sensor (Detector)

21 Cable inlet Basically PF 3/4” is provided for power supply to Gas detector and lead-in of measurement output

signals upon installation operation.

22 Internal earth - Inside grounding of Detector for protection from outside nose or strong electric field

- For grounding cable, use conductor larger than 4mm upon coupling connection.

23 RS-485 Module /

HART Module

Connector to connect Isolation Type RS-485 communication Module for communication with PC

or PLC and HART communication Module. For RS-485 communication, communication Address

should be set, and the basic value is set for No.1. For HART communication, Polling-Address and

Tag No. etc. should be set. (Optional specifications)

24 Relay Contact

Type Selection

Configured so as to allow selection of A, B contact. If not in ENERGIZER MODE, it operates as

contact A (Normal Open) when Jumper is connected to the part displayed as silk A, while it

operates as contact B (Normal Close) when Jumper is connected to the part displayed as silk B.

On the contrary, if in ENERGIZER MODE, it operates as contact B when Jumper is connected to A,

while it operates as contact A when Jumper is connected to B.

25 Warning Light

Connector Connecting connector when the warning light is used(Optional)

No ITEMS SPECIFICATION

1Power & Signal cable Comprised of power supply input, 4-20mA analog signal, and transmitter communication cable.

2Detector fixed screw Screw processing part for mounting of transmitter

3Earth Ground Outside grounding for protection from outside noise or strong electric field

4Housing Protect PCB Board embedded inside from change in outside environment or impact

5IR Sensor Sensor device for transformation of IR wavelength to electric signals

6IR Tube Lock Screw for fixing of IR tube

7IR Tube Optical path passing infrared wavelength generated in IR lamp

8Filter Filter device for protection of inside optical paths from outside contaminants

9IR Source Lamp for generation of infrared signals

10 Calibration port Inlet for calibration gas upon gas calibration

11 Filter fixing screw Screw for fixing of filter

[Table 1. Components of GIR-3000W]

[Figure 3. Components of GIR-3000W Sensor]

[Table 2 Description on components of GIR-3000W]

GIR-3000W

Instruction Manual

4.2. Components of infrared sensor

4. Name and description of each part4. Name and description of each part

www.gastron.com

12_13

GIR-3000W

Instruction Manual

4.3. Components of GTL-100 4.4. Description on LAMP function

■InthecaseofNormalstate,greenLEDislightedforthewarninglight,andBuzzerdoesnotsound.

■WhensignalsofAlarm-1arereceived,redLEDblinksatanintervalof1second,andBuzzersounds

at an interval of 1 second.

■WhensignalsofAlarm-2arereceived,redLEDislighted,andBuzzersoundscontinuously.

■WhenTroublesignalsarereceived,yellowLEDislighted,andBuzzerdoesnotsound.

[Table 3. Description on main parts of Main PCB]

No NAME DESCRIPTION

1FRONT CASE Explosion-proof CASE made of plastic material, with a transparent window that disperses LED

light to outside.

2CASE RING FRONT CASE that plays the role of cover for prevention of breakaway.

3SEXANGLE BOLT Fastened with headless bolt for prevention of breakaway after assembly of CASE RING

4CASE BODY Body that protects BUZZER and other parts inside.

5BUZZER Generate alarm sound by receiving signals upon occurrence of abnormality.

6FIXED RING Prevent breakaway of sintered filter upon outside impact

7FLAME ARRESTER Shut off inflow of dust, foreign objects, water, GAS, and transmit alarm sound of BUZZER to

outside

8ARREST CAP Protect sintered filter from outside impact

9LED COVER LEDPCBASS'Ycouplingunitcoatedwithmolding.

10 LEDPCBASS'Y Displaystatesbymulti-colorLED's

11 NUT Play the role of fastening to the counterpart assembly item.

12 SHAFT BODY Play the role of fastening to the counterpart assembly item.

13 CABLE WIRE Supply power and transmit DATA.

[Figure 4. Components of GIR-3000W Lamp]

4. Name and description of each part4. Name and description of each part

[Table 4. Description on major parts of Main PCB]

www.gastron.com

14_15

5. Installation5. Installation

GIR-3000W

Instruction Manual

5.2. Configuration of Main PCB

Absolutely no one other the approved users or those of the headquarters in charge of installation and repair should be

allowed to install in the field, open or operate Cover of the installed gas leakage detector. Otherwise serious damages

to life and property may be inflicted. Also, make sure to shut off the power supply and conduct operation after checking

whether explosive GAS remains or flammable substances are present in the surroundings.

■WhenDisplayPartsareseparated,thelayoutdiagramforMainPCBterminalasfollowscanbeseen.

■ByusingOC1,OC2,OC3oftheabovelayoutdiagram,HARTOptionorRS485MODBUSboardcanbemounted,

and is fixed by using 3 Ø Screw hoe on the to[ left side of Option board.

No NAME DESCRIPTION

1CN12 Power & Output Signal Terminal

2J4 4~20mA Source / Sink selection jumper(ON: Source Type, OFF: Sink Type)

3CN11 Display LCD Connector

4CN10 Sensor Connector

5CN6 Program download Connector

6D1 Status LED (Blinks by the unit of 11 sec in the case of normal operation)

7OC1, OC2, OC3 HART Option Board Connector

8CN5 Warning light (GTL-100) Interface Connector

[Figure 3. Components of GIR-3000W Sensor]

5.1. Separation of Housing Cover

■<Warning-Donotopenduringcurrentsupply.>

■Covercanbeseparatedwhenthecoverforgas

leakage detector is turned counterclockwise after

slotted set

■screwforfixingofbody'scover(M4x1ea)isturned

3~4 turns clockwise by using a hexagonal wrench (M2).

When Cover is separated, LCD unit is displayed.

Slotted set

screw (M4)

Figure when infrared

Sensor(Detector) is mounted

[Figure 3. Slotted set screw]

■WhenCoverisseparated,separateDisplayPartsinthe

following order.

 ① Simultaneouslypushinwardthefixingchainson

left side and right side on the front face of LCD unit.

 ② SeparatefromGasdetectorbodybypullingDisplay

Parts forward in the pushed state.

 ③ MainPCBisinstalledbelowDetectorBodyafter

separation of Display Parts .

[Figure 6.Separation method for Display Part]

5.3. Configuration of power supply and 4-20mA terminal

■<Warning-Conductoperationaftershuttingoffthepowersupplyuponconnectionofpowersupplyterminal.>

■WhenDisplayPartsareseparated,TerminalBlockinMainPCBcanbeseenasshowinthefollowingfigure, 

which is separated from Main PCB when held by hand and pulled up.

■Loosenbyturningcounterclockwisetheterminal-fixingscrewsat5placesintheupperpartoftheseparated

 TerminalBlockCN12(VISO,+V,mA,-V,ETH)ConnectorbyusingΘdriver,connectDC18-31Vpowersupply

to +, - , and Signal Cable to mA , followed by locking terminal-fixing screws at 5 places clockwise to prevent

terminal from breaking away, and fit it in Main PCB as before separation.

www.gastron.com

16_17

5. Installation5. Installation

GIR-3000W

Instruction Manual

No PCB Silk PIN NAME DESCRIPTION

4~20mA Source Drive (J1 Jumper ON) 4~20mA Sink Drive (J1 Jumper OFF)

1VISO VIS N.C 4~20mA Sink In(+)

2+V ++24V / POWER (+)

3mA mA 4~20mA Source Out 4~20mA Sink Out(-)

4-V -GND / POWER (-)

5ETH ET EARTH

[Table 5. Detailed description on CN8 terminal]

[Figure 8. Configuration of CN11 terminal]

Terminal-fixing Screw

■UponconfiguringtheTerminal,useCVVSorCVVSB2.0sq↑ShieldCable.

■Toconnect4PinTerminaloftheexistingold-styleGIR-3000,fastentheterminalbasedon+24VasNo.2plate.

[Figure 9. Configuration of 4-20mA Source]

[Figure 10. Configuration of 4-20mA Sink]

5.3.2. Wire connection of driving method for

4~20mA Sink

■Connect4-20mASignalterminalonPLCsideto

 GIR-3000의'mA',whileGNDterminalisusedin

common with the power supply. And then turn

the J1 Jumper ON.

■HARTCommunicatorcanbeusedonlyinthemodel

using HART Option board

■Connect4-20mASinkoutput(+)terminalonPLC

 sidetoVISOterminal,and(-)terminalto'mA'

terminal. And then turn the J1 Jumper OFF.

■HARTCommunicatorcanbeusedonlyinthemodel

using HART Option board.

5.3.1. Wire connection diagram of driving method for

4~20mA Source

5.4.2. Setting for Relay mode

www.gastron.com

18_19

5. Installation5. Installation

GIR-3000W

Instruction Manual

[Figure 11.Configuration of 4-20mA 3Wire Sink]

[Figure 12. Relay and RS485 Terminal]

■FordrivingofRelayofGIR-3000Wproduct,2typesofNormalopenandNormalcloseareoperated.Toallow

 settingofMainPCB에Relaydrivingmethod,Jumperisconfiguredwithoperationsettingasfollows.

TER. NO. PIN NO. TERMINAL NAME MODE SETTING

CN8

1TRB OUT J3 A-C connect : A contact ( Normal Open )

J3 B-C connect : B contact ( Normal Close )

2TRB COM

3AL1 OUT J2 A-C connect : A contact ( Normal Open )

J2 B-C connect : B contact ( Normal Close )

4AL1 COM

5AL2 OUT J1 A-C connect : A contact ( Normal Open )

J1 B-C connect : B contact ( Normal Close )

6AL2 COM

[Table 7. Setting for Relay Mode]

5.4.3. Setting for RS485 MODBUS

■MODBUSofGIR-3000WproductisanOptionalitem,andisconnectedtothereceiverunitbythefollowingmethod.

TER. NO. PIN NO. TERMINAL NAME RECEIVER TERMINAL NAME NOTE

CN3 7485A 'TRXD+'or'A'or'P'

8485B 'TRXD-'or'B'or'N'

[Table 8. Description on RS485 terminal]

[Figure 13. Setting for Relay Mode]

■Connect4-20mASinkoutput(+)terminalonPLC

side to VISO terminal, and (-) terminal to (24V DC)

 (-)terminal.Connect'mA'terminalofGIR-3000to

 'GND'terminal.ThenconnectturntheJ1Jumper

OFF.

5.4.1. Configuration of terminal

5.3.3. Wire connection diagram of driving method for

4~20mA 3Wire Sink

5.4. Configuration of Relay terminal and communication terminal

TER. NO. PIN NO. TERMINAL NAME DESCRIPTION

CN8

1TRB OUT Output mode is determined by TROUBLE RELAY OUTPUT terminal and J3 Jumper setting

2TRB COM TROUBLE RELAY COMMON terminal

3AL1 OUT Output mode is determined by ALARM1 RELAY OUTPUT terminal, J2 Jumper setting.

4AL1 COM ALARM1 RELAY COMMON terminal

5AL2 OUT Output mode is determined by ALARM2 RELAY OUTPUT terminal and J1 Jumper setting.

6AL2 COM ALARM2 RELAY COMMON terminal

CN3 7RS485 A RS485 A terminal

8RS485 B RS485 B terminal

[Table 6.Description on Relay and RS485 terminal]

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