Pentair TRACETEK TTDM-128 Service manual

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TTDM-128
TraceTek Leak DeTecTion MasTer MoDuLe insTaLLaTion insTrucTions
THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTDM128-IM-H5734103/13
GENERAL INFORMATION
Please read these instructions carefully and keep them in a safe
place (preferably close to the TTDM-128) for future reference.
These instructions must be followed carefully to ensure proper
operation.
The TTDM-128 Leak Detection Master Module has been designed
specifically for use with TraceTek sensing cables, point sensors,
sensor interface modules and relay modules. The TTDM-128 can
directly monitor up to 1500 m (5000 ft) of sensing cable, and large
networks of remote leak detection modules.
An external disconnect device and appropriate branch circuit
protection (no more than 20 amp rating) should be provided for
the TTDM-128. The disconnect device should be clearly marked
as such. Follow all national and local codes and regulations
applicable to the installation.
TOOLS REQUIRED
• Drillorholepunchforelectricalconduitentries
• Phillips(cross-head)screwdriver
• Smallflat-headscrewdriver
INSTALLATION ITEMS NOT SUPPLIED
• Wallfastenersforsurfacemounting(fourscrews)
STORAGE
Keep the module in a dry place prior to installation to avoid
possible damage to internal components.
PRODUCT INFORMATION
TTDM-128 115 Vac +15%, –20%; 50/60 Hz
230 Vac ±10%; 50/60 Hz
TTDM-128-24V 24 Vac +5%, –35% 24 Vdc ±20%
Power consumption 10 VA for TTDM-128
12 VA for TTDM-128-24 V
Installation categories Overvoltage Category II, Pollution Degree 2
Built-in relays Number: Three(Service,Leak,Fault)
Type: DPDT
Rating: 5 A at 250 Vac/24 Vdc
Storage temperature –18°C to 60°C (0°F to 140°F)
Operating temperature 0°C to 50°C (32°F to 122°F)
Enclosure NEMA 12; IP 54
Shock hazard. Shut off power before opening enclosure door.
WARNING:
APPROVALS AND CERTIFICATIONS
General Signaling Equipment
76LJ
TYPE NM

THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTDM128-IM-H5734103/13 2 / 6
1LCD display
2LEDs with icons
3Test key
4Silencekey
5Reset key
6Menu keys
7User Interface board
84—20 mA board (optional)
9SensorInterfaceboard
bkMotherboard
blPower supply board
bmFuse (500 mA, 250 V, time delay)
bnPower cable plug and socket
boVoltageSelectorSwitch
bpSparefuse
bq Ground/earth stud
brGland plate
bsFault relay cable plug and socket
btLeak relay cable plug and socket
ckServicerelaycableplugandsocket
cl4—20 mA port plug and socket
cmRS-232/485hostportplugand
socket
cnSensingcableplugandsocket
coRS-485TraceTekNetworkPlug
 &Socket
cpRibbon cable
cqHostportRS-232/485selector
cr 9pinRS-232socket
cs Reset pins
ct Volume adjustment
dk LCD contrast adjustment
PL indicates power limited circuits
Note: To avoid damage to the unit, store the TTDM-128 module in
its cardboard box until construction is complete.
Select the mounting position.
Choose a location indoors where the module will be protected
from the elements and temperature extremes.
• Removethemodulefromitscarton.Donotremovethe
protective film from the membrane on the front of the unit.
• Opentheenclosuredoorusingaflat-bladescrewdriveroracoin.
Important: The TTDM-128 is an electronic unit. During instal-
lation, take the following precautions to avoid damage to its
electronic components:
•Handlewithcare,avoidmechanicaldamage.
•Keeptheelectronicsdry.
•Ifhandlingcircuitboards,holdthembytheiredgestoavoid
physical contact with electronic components.
•Avoidexposuretostaticelectricity.
•Avoidcontaminationwithmetallings,liquids,orotherforeign
matter.
WARNING: Ignition hazard. Do not mount the TTDM-
128 unit in a hazardous location. Sensing cable
connected to the TTDM-128 may (subject to
approvals restrictions) be located in hazardous
locations, but the module itself must be in an
ordinary area.
Note:The TraceTek sensing circuit is power limited, so the
TraceTek leader or jumper cable and the power supply
cable must not run in the same conduit.
Installing the TTDM-128
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  
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





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
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3 / 6THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTDM128-IM-H5734103/13
TTDM-128 Power Supply Connection
•OpendoorofTTDM-128enclosure.
• For110/220Vacpowersupply:selecttheappropriatevoltage
using the voltage selector switch bo.
TTDM-128-24 V Power Supply Connection
Note: For proper operation of the TTDM-128-24 V, use a power
supply whose output is electrically isolated from the incoming
line power and ground.
• EachTTDM-128-24Vrequiresaseparateisolatedpowersupply.
TTDM-128 and TTDM-128-24 V Power Wiring Connection
• Passthepowercablethroughtheglandplateadapter/bushing
into the enclosure.
• Connecttheground/earthwiretotheground/earthstudbq.
• Theground/earthstudismarkedwiththissymbol:
Note: Proper grounding/earthing of the TTDM-128 enclosure is
important to avoid the possibility of electromagnetic interference.
• Removethepowercableplugfromthesocketbn on the power
supply board bl.
• Connectthepowersupplywirestothepowercableplug.UseL2
for neutral, if present.
Note:Theterminalscanacceptwires10AWG(4.7sq.mm)or
smaller.Werecommend12AWG(3.0sq.mm)wires,withbranch
circuit protection sized accordingly. Cable should have a tem-
perature rating of 65°C minimum.
• Insertthepowercableplugbackintothesocketbn on the power
supply board bl.
VAC IN
Use L2
for neutral,
if present.
Do not
exceed
maximum
voltage
rating
110/220 Vac power supply
24 V power supply



Do not
exceed
maximum
voltage
rating


Mounting the Enclosure
Install the enclosure using the four screws in the prepunched 8
mm (5/16-inch) mounting holes with centers as shown in Figure 3.
If plastic plugs are in the mounting holes, remove them. Make sure
the rubber elastomeric washers (provided in the shipping box) are
aligned to seal around the mounting screws to maintain the NEMA
12 and IP54 ratings.
Making Enclosure Entries Using the Removable Gland Plate
The removable gland plate br on the bottom edge of the enclosure
provides a location to feed wires into the enclosure (Figure 4).
The plate is attached with eight screws. Unscrew these to remove
the gland plate, then you can drill or punch holes in the gland
plate appropriateforyourapplication.Thereissufcientwidthfor
uptove1/2-inchorM20holes.Removeallmetallingsanddust
from the gland plate before remounting. Take care not to damage
the gasket on the gland plate. You must secure the gland plate
ground wire to the chassis ground lug after remounting the gland
plate.
300 mm
(11.81 in)
Figure 3
261 mm
(10.26 in)
240 mm
(9.45 in)
200 mm
(7.87 in)
20 mm
(0.79 in)
20 mm
(0.79 in) mounting hole
(four places)
8 mm (5/16 in)
Attachment points
for motherboard
(four places)
Gland plate
Gasket
Figure 4
Screws
Grounding wire to
attach to ground
lug in enclosure
terminal 62.

Connecting the Power Cable and Relays

THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTDM128-IM-H5734103/13 4 / 6
Connect the alarm relays.
The TTDM-128 has three relays, for service ck, leak bt, and fault
bs. Each relay provides two Form-C relay contacts, and normally
open and normally closed contacts are both provided. The relays
are de-energized to indicate an alarm condition. The illustration
shows the relay status in the alarm (de-energized) state.
The illustrations that follow show how relays can be jumpered
together to allow remote monitoring of the TTDM-128 status with
only a single pair of wires. The TTDM-128 de-energizes its relays
to signal an alarm condition. Therefore, loss of power, as well as
any other type of alarm, would signal the remote alarm.
Note: Therelayplugscanacceptwires10AWG(4.7sq.mm)or
smaller.Werecommend18AWG(1.0sq.mm)wires.Cableshould
have a temperature rating of 65°C.
Note: Maximum load for relays is 5 A.
LEAK RELAYSERVICE RELAY FAULT RELAY 
Monitoring circuit
(alarm on open circuit)
Relays wired
in series
Alarm on open circuit
Monitoring circuit
(alarm on closed circuit)
Relays wired
in parallel
Alarm on closed circuit


Test after supplying power.
•Closeandlatchtheenclosuredoor.
•Supplypowertotheunit.Whenpowerissupplied,thegreenLED
illuminates, and the unit goes through a series of self-tests. Af-
terthestart-upsequenceiscomplete,themoduleshouldreport
a fault alarm (this is normal; there is no sensing cable attached).
PresstheredSilencekeytosilencetheaudiblealarm.Verifythat
the display appears similar to the one shown here (the time and
date may be different):
If anything other than the above occurs, check all connections. If
unit still does not appear to operate properly, contact a TraceTek
representative for assistance.
•PresstheTestbutton.Themoduleconductsanumberofself-tests.
•Ifthetestsaresuccessfullycompleted,recordthisontheinstal-
lation record.
•Turnoffthepowersupplytotheunit.
Test with TTDM-128 test plug.
•Toconductamorecompletetest,usetheTraceTekTTDM-CTPtest
plug (packed in a plastic bag in the TTDM packaging). Insert the plug
into the sensing cable socket cn on the sensor interface board 9.
•Closeandlatchtheenclosuredoor.
•Supplypowertotheunit.Whenpowerissupplied,theunitwillagain
go through a series of self-tests. If the test plug is in the sensing cable
socket,afterthemodulecompletesthestart-upsequenceitshould
soundanddisplayaleakalarm.PresstheSilencekeytosilencethe
audible alarm. The red Leak LED and green Monitoring LED should
both be illuminated, and the screen display should appear similar to
the one shown here (depending on the setting).
•Ifanythingotherthantheaboveoccurs,checkallconnections.Ifunit
still does not appear to operate properly, contact a TraceTek represen-
tative for assistance.
•Ifthetestissuccessfullycompleted,recordthisontheinstallation
record.
•Turnoffthepowersupplytotheunit.
•RemovetheTTDM-CTPtestplugandstoreitinasecureplacefor
future use.
•Ifnotimmediatelyconnectingthesensingcable,orTraceTeknet-
work, close and latch the enclosure.
Depending on the units selected, the leak
distance should be within the values below:
feet: 527 to 548 ft
meters: 160 to 168
zones: 11
Testing the Module

5 / 6THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTDM128-IM-H5734103/13
If the TTDM-128 will be used to monitor a sensor directly, follow
these instructions to connect the sensor to the TTDM-128. If the
TTDM-128 is being used only as a network master, skip to Con-
necting the TraceTek Network.
Prepare sensing cable.
Ensure that the sensing cable has been installed and tested in ac-
cordance with the instructions provided with the cable.
Make connections.
•Conrmthatpowertotheunithasbeenshutoff.
•Opentheenclosuredoor.
•FeedtheendoftheTraceTekLeaderCable(orJumperCable)
through the gland plate br adapter/bushing into the enclosure.
•Removethesensorcableplugcn from the socket on the sensor
interface board 9.
•Connectthefourcolor-codedwirestotheSensorInterfaceplug.
Important: Observe the color coding. If wires are not connected
to the proper terminals, the leak detection system cannot oper-
ate properly.
•InsertthesensingcableplugbackintothesocketontheSensor
Interface Board 9.
SENSOR CABLE
PL
Black
Yellow
Green
Red

Install zener barrier, if applicable.
WhensensingcablewillbelocatedinClassI,Division1(Zone0or
Zone1inEurope)hazardouslocations,approvalagenciesrequire
that the sensing cable be protected with a zener barrier between
the sensing cable and the TTDM-128 module. Contact TraceTek to
select the proper zener barrier.
Wheninstallingazenerbarrier,wireitinaccordancewiththe
instructions provided with the kit.
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Class I, Division 1
(Zone 0 or Zone 1 in Europe)
Hazardous Location
Ordinary Area
Zener
barrier
Leader or jumper cable
Jumper cable
Sensing cable
TTDM-128
If the TTDM-128 will be used as the network master in a TraceTek
network, follow these instructions to connect the communication
wiring.
Note:SomeTraceTeknetworkcongurationswillrequiredifferent
connections for the communication wiring. Please refer to the
TTDM-128 User Manual for further details.
Prepare communication cable.
Ensure that the communication cable has been installed and
tested.
Make connections.
•Conrmthatpowertotheunithasbeenshutoff.
•Opentheenclosuredoor.
•Feedtheendofthecommunicationcablethroughthegland
plate br adapter/bushing into the enclosure.
•RemovetheJ10cableplugco from the socket.
•Connectthepositivewiretoterminal3(485+)andthenegative
wiretoterminal4(485–)oftheJ10cableplug.
•Connecttheshieldwiretotheroundlugbq.
Important: Observe the polarity. If wires are not connected to the
proper terminals, the leak detection system cannot operate
properly.
•InserttheJ10cableplugbackintothesocketco.
•PlacethepositiveandnegativewireintheFerriteclamp.Do
not place the shield wire inside the clamp. Close the clamp by
securing its latch to the snaps.
PL
RS-485 cable to next TraceTek module.

RS-485 (–)
RS-485 (+)
SHIELD

Ferrite clamp
Connect the Sensing Cable
Connecting the TraceTek Network

6 / 6THERMAL MANAGEMENT SOLUTIONS EN-TraceTekTTDM128-IM-H5734103/13
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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.
There are 3 ways to connect the TTDM-128 to a host computer:
hard-wiredRS-232,hard-wiredRS-485,orstandardmodularRS-
232 cable. For permanent installations, the hard-wired method is
recommended(eitherRS-232orRS-485asnecessary).Themodu-
larRS-232cableshouldbeusedonlyfortemporaryconnections
by trained technicians.
Make connections.
•Conrmthatpowertotheunithasbeenshutoff.
•Opentheenclosuredoor.
•Feedtheendofthecommunicationcablethroughthegland
plate br adapter/bushing into the enclosure.
•RemovetheJ13cableplugcm from the socket.
ForRS-232connection:
•ConnecttheRX,TX,RTS,CTSandDGNDwiretoterminals5,6,
7,8and10respectively.
•Setthehostportselectorswitchcq on the User Interface
board 7totheRS232position.
ForRS-485connection:
•Connectthepositivewiretoterminal5(RX/A)andthenegative
wiretoterminal6(TX/B).
 Setthehostportselectorswitchcq on the User Interface
board 7totheRS485position.
•Connecttheshieldwiretothegroundinglugbq.
•InserttheJ13cableplugbackintothesocketcm.
PL
RS-232
cable
RS-485
cable
DGND
CTS
RTS
TX
RX
PL
RS-485 (–)
RS-485 (+)
SHIELD
SHIELD




Power up the system.
After connections are complete, supply power to the unit. The unit
will go through a series of self-tests, and then display the system
status. If the sensing circuit is complete and free of leaks or other
problems, only the green Monitoring LED will illuminate, and the
LCD display will appear similar to that shown at right:
Ifthisisnotthecase,youcanndadditionalinformationinthe
TTDM-128 Operation and Maintenance Manual (H56853) supplied
with the module.
Commissioning
Your system should be commissioned by an authorized TraceTek
representative. The system map is a crucial part of a TraceTek
locating system. The TTDM-128 will give the point along the sens-
ingcableatwhichliquidhasbeendetected;themapisessential
to show its physical location.
Important: Storehardwareanddocumentationsuppliedwiththe
TTDM-128 in a secure place for later use (commissioning, con-
necting interfaces, operating).
Connecting to a Host Computer
Start-Up and System Testing