Pentair TRACETEK TTDM-128 User manual

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TT-NRM

Network relay Module INstallatIoN INstructIoNs

THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13

TT-NRM-BASE

unit with four

TT-NRM-2RO

modules removed

TxD

I/O RUN

I/O ERR

RxD

CRC

750-312

x 10

–

DESCRIPTION

The TraceTek Network Relay Module provides multiple relay

outputs for switching alarm or control devices for the leak detection

system. TT-NRM units are modular and may be configured with 2 to

32 relay outputs. A single TTDM-128 unit communicates with up to

up to 20 NRMs over a single, twisted pair RS-485 cable.

ADDITIONAL MATERIALS REQUIRED

• TT-NRM-2RO,2-channelrelayoutputmodule(marked750-517)

[up to 15 additional modules may be added to one TT-NRM-BASE]

• RS-485cable,1shieldedtwistedpair[TT-RS485-BULKor

equivalent]

• Suitableenclosureorpanel

• Additionalwire,asnecessary

TOOLS REQUIRED

• 3.5-mmflat-bladeterminalscrewdriver

• Wirestripper/cutter

REFERENCE DOCUMENTS

• TTDM-128InstallationManual(H57341)

• TTDM-128UserManual(H56583)

SPECIFICATIONS

Function Provides relay outputs to switch power to

contactors under control of the TTDM-128

Ambientoperatingrange 0°Cto55°C(32°Fto130°F)

Ambientstoragerange –40°Cto60°C(–40°Fto140°F)

Relative humidity 5% to 95%, noncondensing

Supplyvoltage 94-264Vac

Supplycurrent 60VAmax.

Relay output type Mechanical, normally open, voltage free

Relayoutputrating 230Vac,30Vdc,2Amax.

Communications RS-485, single shielded twisted pair,

max.20NRMunitspernetwork

Connectionterminals 28–12AWG(0.08–2.5mm2)

This component is an electrical device. It must be installed

correctly to ensure proper operation and to prevent shock or fire.

Read and carefully follow these important installation instructions.

WARNING:

KIT CONTENTS

TT-NRM-BASE:

1 Networkprocessor(marked750-315)

1 24Vdcpowersupply(marked5101-7663)

1 Relayoutputmodule(marked750-517)

1 Endterminationmodule(marked750-600)

1 RS-485 network connection module

1 Ribbon cable with screws

1 DIN35railformounting

1 Groundterminal

2 DINrailendstops

APPROVALS

THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13 2 / 8

TTDM 128

TT-NRM

TxD

IO/RN

IO/ER

RxD

CRC

Address x 1

x 10

WAGO

750-315

I/0 SYSTEM

24V 0V

750-517 750-517 750-517 750-517 750-600



    













–

TT-NRM System Layout

TT-NRM Assembly

• TheTTDM-128controlsupto127circuitsofleak

detection.TT-NRMunitsswitchexternalalarmorcontrol

devices. NRMs are connected to the TTDM-128 unit via a

single RS-485 network.

1 Networkprocessor(marked750-315)

2 2-channelrelayoutputmodule(s)(marked750-517)[up

to16totalmodulesallowedperprocessor]

3 Endterminationmodule(marked750-600)

4 DIN35rail

5Address switches

6RS-485 ribbon cable

7RS-485 network connection module

8 24Vdcpowersupply

9 Groundterminal

bk End stops

3 / 8THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13

100 mm

(4 in)

38 mm

(1.5 in)

35 mm

(1.4 in)

12 mm

(0.5 in)

12 mm

(0.5 in)

45 mm

(1.75 in)

38 mm

(1.5 in)

Power

supply

RS-485

network

connection

module

Network

processor

Relay

module

End

termination

Overall width: = 157 mm + 12 mm per relay module

= 6.25 in + 0.5 in per relay module

TxD

IO/RN

IO/ER

RxD

CRC

Address x 1

x 10

WAGO

750-315

I/0 SYSTEM

24V 0V

750-517 750-517 750-517 750-600

–

A. Mount DIN rail

Overview of installation procedures for TT-NRM

1. Select a location for installation.

The TT-NRM may be installed in any panel or enclosure

suitable for electronic control devices.

The TT-NRM assembly is powered with line voltage and

switches relay contacts that may be connected to line volt-

age. Select an electrical panel or enclosure considering the

areaclassification(i.e.,non-hazardousorhazardous),the

location(indoorsoroutdoors,exposuretomoistureand/or

dust),andthechemicalenvironment.

Ifambienttemperaturesbelowfreezingareexpected,

install the TT-NRM unit in a heated location or use an

enclosureheater.Ifmoistureisexpected,installadrainin

the enclosure.

2. Size and install DIN rail.

UsethesuppliedDIN35rail.Therailmaybeshortened

if necessary. The width of the TT-NRM assembly is deter-

minedbasedonthenumberofTT-NRM-2ROrelaymodules

used.

A. Mount TT-NRM assembly in enclosure selected for the application.

B. Connect power and relay contact wiring.

C. Connect RS-485 cables and set address.

D. UpdatetheTTDM-128network.

THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13 4 / 8

Orange tab

B. Install TT-NRM assembly

1. Attach the TT-NRM components to the DIN rail

The TT-NRM-BASE comes assembled. To remove a

module, pull up on the orange release tab until the mod-

ulereleasesfromtheDINrail.Do not remove modules

while power is on.

ToinstalladditionalTT-NRM-2ROrelaymodules,you

must ﬁrst remove the End termination module (3)

andtheadjacentDINrailendstop.Slidetheadditional

relay modules into place and ensure they snap on to the

DINrail.ReplacetheEndterminationmoduleandDIN

rail end stop to the right of the last relay module added.

Refer to the TT-NRM Assembly diagram on page 2 for

the proper order of module assembly.

Important:Modulesand/orexternalequipmentmay

be damaged if modules are not installed in the correct

sequence.

2. Attach the RS-485 network connection module to the

DIN rail.

LocatethemoduletotheleftsideoftheNetworkpro-

cessor.PressthemoduledownontotheDINrailtolock

it in place.

Connect the supplied ribbon cable between the Network

processor and the RS-485 connection module.

Usethescrewsprovidedtosecuretheribboncablecon-

nectors.

3. Mount the power supply.

MountthepowersupplyontheDINrailtotheleftofthe

RS-485 network connection module.

TxD

I/O RUN

I/O ERR

RxD

CRC

WAGO

750-312

I/0 SYSTEM

Address x1

x 10







5 / 8THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13

C. Connect power wiring

Note:TT-NRMunitsuseWAGO®cage-clamp

spring terminals for secure wire connections.

Review the steps at right for using this type of

terminal.

Note:StriplengthforwiresinWAGOterminals

is10mm(3/8in).

   

TxD

IO/RN

IO/ER

RxD

CRC

Address x 1

x 10

WAGO

750-315

I/0 SYSTEM

24V 0V

L L

N N

L L

N N

01 02 15 16

750-517 750-517 750-600

–

POWER SUPPLY

To AC

supply

TxD

IO/RN

IO/ER

RxD

CRC

Address x 1

x 10

WAGO

750-315

I/0 SYSTEM

24V 0V

L L

N N

L L

N N

01 02 15 16

750-517 750-517 750-600

Note: Previous wiring omitted for clarity

–

POWER SUPPLY

Using WAGO Terminals

Insertat-blade

screwdriver into

square hole.

Rotate and push

the screwdriver

ﬁrmly to open the

spring.

Insertstripped

wire into round

hole.

Remove screw-

driver.

1. Connect 24 Vdc wiring.

24VdcsupplymustbeconnectedtotheNetworkproces-

sor module. Connect wires from the power supply output

to the terminals shown.

Connection terminals on TT-NRM module accept 28–12

AWG(0.08–2.5mm2)wire.

2. Connect line voltage supply.

Connect line voltage and ground to the input of the

power supply as shown.

THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13 6/8

3. Connect wiring to relay contacts.

Connecttheexternalalarmorcontroldevicestothe

terminalsoneachTT-NRM-2RO2-channelrelayoutput

modules as shown.

TxD

IO/RN

IO/ER

RxD

CRC

Address x 1

x 10

WAGO

750-315

I/0 SYSTEM

24V 0V

L L

N N

L L

N N

01 02 15 16

750-517 750-517 750-600

L L

N N

15 16

750-517

Note: Previous wiring omitted for clarity

Status

relay 1

Status

relay 2

N/O N/O

Common Common

N/C N/C

Up to 16

TT-NRM-2RO's

per network

processor

Load

N/C

Common

(line)

Neutral

N/O

–

POWER SUPPLY

7/8THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13

D. Connect RS-485 cables and set address

1. Select the RS-485 address for the TT-NRM unit.

Each TT-NRM connected to a TTDM-128 must have a unique

addressintherange1to99.IftwoTT-NRMunitsareas-

signed the same address, communications faults will result.

To ensure you assign an unique address to each TT-NRM unit,

reviewthesystemlayout.Ifalayoutdocumentdoesnotexist,

create one. Assign an unique address to each TT-NRM unit.

Note: TraceTekTTSIMmodulesareconnectedonthesame

RS-485 network and must not have the same address as any

TT-NRM.

2. Set the RS-485 address for the TT-NRM unit.

Useasmallat-bladescrewdrivertorotatetheaddress

switchmarked“x1”tothedesiredaddress.Foranaddress

of50,setthe“x1”to0andthe“x10”to5.

Set address 0-9

Set 10's digit of address

–

TxD

IO/RN

IO/ER

RxD

CRC

Address x 1

x 10

WAGO

750-315

I/0 SYSTEM

24V 0V

750-517 750-517 750-517

RS-485

Note: Previous wiring omitted for clarity

POWER SUPPLY

3. Connect RS-485 cables.

Note: Do not make connections to the RS-485 bus while it

is connected to an operating TTDM-128, or damage and/or

alarms could result.

The RS-485 bus allows units with unique addresses to be

daisy-chained together along a common bus. To add a new

unit to the network, simply daisy-chain the RS-485 bus from

the last unit to the new one—or insert the new unit between

twoexistingunitsonthebus.Theorderinwhichunitsare

attached to the RS-485 bus does not matter. There are just

two constraints on the RS-485 network:

• EachTT-NRMmustbeassignedauniqueaddress.

• TheRS-485busmustbeacontinuousstringfromthe

ﬁrst unit to the last unit in the system.

Note: TheRS-485busoperatesat5V,andequipment

connectedtoitcouldbedamagedbyexposuretohigher

voltages.TakeprecautionstoavoidexposingtheRS-485

wiring to discharge of static electricity or other sources of

high voltage potential; in particular, avoid contact with the

power supply wiring.

432

1Connect the clear or white wire of the RS-485 cable to

the(+)terminalasshown.

ConnecttheblackwireoftheRS-485cabletothe(–)

terminal as shown.

Connect the shield wire of the RS-485 cable to the

shield terminal as shown.

IfconnectingtwoRS-485cables(oneINandoneOUT),use

the same terminals for both wires.

Important: Do not connect the shield of the RS-485 cable

to the enclosure or panel grounding terminal. Connect the

shield only to the terminal provided. To avoid the potential

for spurious ground loops, the RS-485 cable shield should

be connected to ground only in the TTDM-128.

8 / 8THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTNRM-IM-H5747401/13

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Pentair and TraceTek are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners. Pentair reserves the

right to change specifications without prior notice.

TxD

IO/RN

IO/ER

RxD

CRC

Address x 1

x 10

750-315

Power on

Communications

E. Update the TTDM-128 Network

TT-NRM units are controlled by a central TTDM-128. The

UpdateNetworkFunctionintheTTDM-128softwaremust

betriggeredinorderfortheTTDM-128torecognizenewor

changedTT-NRMunits.Untilthissoftwarefunctionisrun,

the TTDM-128 will not control new TT-NRM units.

1. Energize all TT-NRMs in the network.

ConrmthattheRS-485networkiscomplete(allTT-

NRMandTTSIMunitsandtheTTDM-128areconnected

totheRS-485bus),andthatthepowertoeachunithas

been turned on.

2. Use the TTDM-128 system software to update the network.

Note:WhentheTTDM-128isrstpowered,itautomati-

callyrunsthe“Update”function.

RuntheTTDM-128“UpdateNetwork”softwarefunction

totriggerittorecognizenewTT-NRMs.TheTTDM-128

UserManual(H56853)describesthissoftwarefunction

in detail.

3. If necessary due to problems or questions, check function

of individual modules.

• VerifythataTT-NRMisfunctioningbyconrmingthat

thepowerLEDisilluminated.

• Checkallconnections.

• CheckthatallTT-NRMmodulesaresecurelyseated

ontheDINrail.

• ConrmthattheTT-NRMnetworkdoesnothaveany

duplicate RS-485 addresses.

• IndividualrelayscanbecheckedusingTTDMSelf-test/

NRM Relay test.

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