nvent Raychem TraceTek TTA-SIM Installation instructions

DESCRIPTION
Please read these instructions and keep them in a safe place.
These instructions must be followed carefully to ensure
proper operation.
The nVent RAYCHEM TraceTek TTA-SIM must be installed in
an ordinary (non-hazardous) location. It may be used with any
TraceTek sensing cable, point sensor and/or normally open, dry
contact devices (float switch, pressure or vacuum switch, optical
probe with adapter, limit switch, etc.). Up to 150 m (500 ft) of
sensing cable can be monitored by the TTA-SIM. Contact factory
for information regarding longer monitoring distance.
An external disconnect device and appropriate branch circuit
protection (no more than 20 amp rating) should be provided for
the TTA-SIM. The disconnect device should be clearly marked
as such. Follow all national and local codes and regulations
applicable to the installation.
INSTALLATION ITEMS (NOT SUPPLIED)
• Wall fasteners for surface mounting (four screws)
• TT-RS485 telemetry cable (optional)
TOOLS REQUIRED
• Drill for making conduit / cable gland entries
• Phillips (cross-head) screwdriver
• Small flat-blade screwdriver
• Small needle nose pliers (required only for device
programming if digital communication is used)
• Tools to mount enclosure
STORAGE
Keep the TTA-SIM modules in a dry place prior to installation.
Avoid damage to components.
ADDITIONAL ITEMS
An agency-approved zener barrier must be used where sensing
cable connected to the TTA-SIM will be located in Class1 Div 1
(Zone 0 or 1 in Europe) Hazardous Locations.
PRODUCT INFORMATION
nVent RAYCHEM TTA-SIM-
1A-120 &
TTA-SIM-2-120
TTA-SIM-1A-230 &
TTA-SIM-2-230
96 to 132 Vac, 50/60 Hz, 3 W
216 to 253 Vac, 50/60 Hz, 3 W
Relay contacts Form C (SPDT), 250 Vac/30 Vdc
at 2 Amps maximum
Installation categories Overvoltage Category II
Pollution Degree 2
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 1; IP20
TTA-SIM
Single Channel Alarm Module Installation/Operation Instructions

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Note: To avoid damage to the TTA-SIM, store the unit in its packaging until ready to install.
SELECTING THE MOUNTING POSITION
Choose a location where the module will be protected from
the elements, temperature extremes or heavy vibration.
The TTA-SIM is designed to be wall mounted at any location
as long as it does not create a tripping hazard or expose the
TTA-SIM to impact damage.
MOUNTING THE TTA-SIM
• Plan cable/conduit alignment and drill holes as necessary.
Cable entries should all be located in the open space at the
right hand of the TTA-SIM (see Figure 2). A typical installation
will require holes to accommodate the following cabling:
- Incoming power supply
- TraceTek sensor leadwire
- [optional] telemetry cable (for RS-485 communication)
- [optional] cable for relay contacts to remote alarm
• Secure the TTA-SIM enclosure to any convenient vertical
surface using the four corner mounting holes and hardware
suitable for the selected surface.
• Rough-in conduit as required and pull the cables for power and
telemetry. Leave approximately 20 cm (8 in) for connection to
TTSIM terminals. Pull in the sensor circuit leader cable.
Note: Rough-in and nal connections do not have to be
completed at the same time, however, make sure to replace the
cover and tighten the cover screws if the enclosure will be left in
a partially installed condition overnight or longer.
Figure 2. Cable entry locations
POWER SUPPLY OPTIONS
The TTA-SIM has two power supply options available. Depending
on the version being installed and local regulations, the wiring
requirements may vary. In all cases, be sure that each TTA-SIM
receives supply voltage from one and only one source.
Important: Power supply voltage must be within range specied
on TTA-SIM label (located on inside of enclosure cover;
the information is also located on TTSIM top label).
CONNECTIONS FOR POWER
Power and ground (earth) connections to the TTA-SIM are made
using the large cage-clamp power terminal blocks at the right
end of the DIN rail as shown in Figure 3. Cut back the power
wires to t and strip to expose approximately 6 mm (1/4 in) of
conductor. Push the tip of a small at-blade screwdriver into
the cage clamp actuator to open the terminal, then insert the
wire into the terminal and release the clamp by removing the
screwdriver.
Note: In order to provide maximum electrostatic discharge
protection, and to be CE compliant, the TTA-SIM must be
grounded.
Figure 3. Power connections
Important: The TTA-SIM is an electronic unit. Take the following
precautions to avoid damage to electronic components:
• Handle with care and avoid mechanical shock and impact
• Keep dry
• Avoid exposure to static electricity
• Avoid contact with metal filings, grease, pipe dope and
other contaminants
Space
available for
cable entries
Relay unit
Power
terminals
TTSIM-1A (or
TTSIM-2) unit
Phase Ground (earth)
Neutral
Installing the TTA-SIM

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LEADER CABLE CONNECTIONS FOR SENSOR
The TTA-SIM can be used with any of the nVent RAYCHEM
TraceTek family of sensing cables including TT1000, TT3000,
TT5000 and TT5001, as well as float switches and point
probes. Connect the TraceTek leader cable to the lever operated
sensor terminals on the relay unit as shown in Figure 4 and the
following table.
Note: To connect a wire to a lever operated terminal, use a small
flat-blade screwdriver to press down on the lever. Insert the wire
(stripped approx. 6 mm [0.25”]) into the opening in the terminal
block, then release the lever.
Terminal Color Item
R Red Red / Green Sensor Cable Loop
G Green
Y Yellow Yellow / Black Sensor Cable Loop
B Black
Figure 4. Sensor Connections
CONNECTIONS FOR ALARM RELAY (OPTIONAL)
Connections to the TTA-SIM relay are made using the lever
operated cage-clamp terminals located on the relay unit (see
Figure 5). The software programmable TTA-SIM relay contacts
may be used for local or remote annunciation, to control a
valve or other device, or for connection to a control automation
system contact input. The relay can be programmed to alarm on
leak only or on either leak or sensor fault. The relay can also be
programmed to be ON (coil energized) or OFF (coil de-energized)
to signal an alarm (see table below). The relay can be
programmed using a TTDM-128 (see TTDM-128 User Manual).
Programmed
Alarm State Alarm Condition Status at Terminals
10-11 11-12
On (default) No alarms closed open
Alarm open closed
Loss of power closed open
Off No alarms open closed
Alarm closed open
Loss of power closed open
Figure 5. Alarm Relay Connections
CONNECTIONS FOR TELEMETRY (OPTIONAL)
Telemetry connections to the TTA-SIM are made using the screw
terminals on the TTSIM unit itself (see Figure 6). Cut back the
wires to fit and strip to expose approximately 6 mm (1/4 in) of
conductor and make the connections. Be sure to connect the
shield as indicated.
Terminal Color Item
13 — Shield Drain Wire Shielded twisted
pair from Host or
previous TraceTek
module
14 Black RS-485 (–)
15 Red RS-485 (+)
16 — Shield Drain Wire Shielded twisted
pair to next
TraceTek module
17 Black RS-485 (–)
18 Red RS-485 (+) Figure 6. Telemetry Connections
Sensor connections
(R G Y B)
Normally Closed
Normally Open
Common
Telemetry
connections

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Note: This section can be skipped if serial communication is not being used.
If the TTA-SIM will be connected to a nVent RAYCHEM TraceTek
TTDM or other host system using RS-485 serial communication,
the end of line (EOL) jumper and network address must be set.
Place the End of Line Jumper in the correct position
The End of Line Jumper on the TTSIM-1A or TTSIM-2 unit must
be set in the correct position as follows (use a small needle
nose pliers to grasp the jumper):
• On the last TTA-SIM in the network communication circuit, place
the jumper on the two pins closest to the EOL mark as shown in
Figure 7(a).
• On all other TTA-SIMs or TTSIMs in the network, place the
jumper as shown in Figure 7(b).
Figure 7. End of Line Jumper for last TTSIM (a) and all other
TTSIMs (b)
NETWORK ADDRESS ASSIGNMENT
When used in a communication network, each TTA-SIM module
must have a unique address assigned to it in the range 001 to
127. All TTA-SIM units are shipped from the factory with their
network address pre-set to a value above the range of valid
addresses, in order to prevent communication conflicts during
system startup and configuration. Each TTA-SIM must therefore
be configured to a unique address before it can communicate
with the TTDM-128 or other host.
To set the TTA-SIM network address, repeat the following
procedure for each TTA-SIM. Perform the complete procedure
one module at a time:
• Using a small needle nose pliers, place the TTA-SIM conguration
jumper in the CFG position, as shown in Figure 8(a).
• Using the TTDM-128 or host system, assign the new TTA-SIM
address (refer to the TTDM-128 User Manual or the TraceTek
System Integration Manual for instructions).
• Place the conguration jumper in the normal operating position,
as shown in Figure 7(b), or remove it completely (the jumper is not
required in normal operation).
Figure 8. CFG jumper position for conguration mode (a) and
normal operation (b)
Jumper Jumper
(a) (b)
Jumper Jumper
(a) (b)
Communications setup

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No user maintenance is required! There are no user
adjustments or calibrations that can be performed in the field.
Each TTA-SIM is tested and calibrated at the factory. An
operating TTA-SIM runs a continuous self check routine and
reports any discrepancies to the TTDM-128 or host computer.
If the TTA-SIM or the network wiring fails in such a way that
the TTA-SIM cannot communicate with the host, then the host
reports the failure as a communications failure.
Status Indicators
There are 5 LED’s on the TTA-SIM-1A circuit board to indicate:
power, communications (inbound and outbound), sensor status
(leak detected and trouble). See Figure 9.
The green Power LED will be ON and will blink once every
5 seconds when the TTA-SIM is powered and fuctioning
correctly. Table 1 lists various sensor status conditions and
possible corrective actions. Table 2 lists communication status
conditions (applicable when the TTA-SIM is used in a network
system).
Figure 9. TTA-SIM-1A LED positions (all LEDs are located on the
TTSIM unit)
Table 1. TTA-SIM-1A LED operational status indications
Table 2. TTA-SIM communication status indications
(onlyactive if connected to a network)
Leak Service Indication TX RX Indication
FLASH Leak detected. Check sensor for leak or spill. FLASH FLASH Unit is communicating normally with TTDM-128
or host.
ON Leak alarm has been reset by operator but the
leak condition still exists
OFF FLASH Unit is receiving communication from TTDM-128
or host, but is not responding.
FLASH The sensor needs servicing. Check sensor
and leadwires/jumpers for continuity or
contamination.
OFF ON RS-485 communication wires are reversed
OFF OFF Unit is not communicating with TTDM-128 or host.
TX (Yellow)
RX (Yellow)
Power (Green)
Service (Yellow)
Leak (Red)
Operating Instructions: TTA-SIM-1A
No user maintenance is required! There are no user adjustments or
calibrations that can be performed in the field.
Each TTA-SIM is tested and calibrated at the factory. An operating
TTA-SIM runs a continuous self check routine and reports any
discrepancies to the TTDM-128 or host computer. If the TTA-SIM
or the network wiring fails in such a way that the TTA-SIM cannot
communicate with the host, then the host reports the failure as a
communications failure.
Status Indicators
There are 5 LEDs on the TTA-SIM-2 to indicate: power,
communications (RX=inbound and TX=outbound), sensor status
(leak detected and trouble). There is also a Reset pushbutton which
is used to acknowledge or reset alarms or for updating the location
display. See Figure 10 for the location of the LEDs and RESET
pushbutton.
The green Power LED will be ON and will blink once every 5 seconds
when the TTA-SIM-2 is powered and fuctioning correctly. Table3
lists various sensor status conditions and possible corrective
actions. Table 4 lists communication status conditions
(applicable when the TTA-SIM is used in a network system).
Figure 10. TTA-SIM-2 LED positions (all LEDs are located on the TTSIM unit)
TX (Yellow)
RX (Yellow)
Power (Green)
Service (Yellow)
Leak (Red)
Reset pushbutton
Operating Instructions: TTA-SIM-2

Table 3. TTA-SIM-2 LED operational
status indications
Table 4. TTA-SIM communication status indications
(only active if connected to a network)
Leak Service Indication User Action TX RX Indication
FLASH Leak detected. Check sensor
for leak or spill.
Preset reset to
acknowledge
FLASH FLASH Unit is communicating normally with TTDM-128
or host.
ON Leak alarm has been reset
by operator but the leak
condition still exists
Press reset to
clear alarm once
leak is cleaned up
OFF FLASH Unit is receiving communication from TTDM-128
or host, but is not responding.
FLASH The sensor needs servicing.
Check sensor and leadwires/
jumpers for continuity or
contamination.
Press reset
to clear once
problem is
corrected
OFF ON RS-485 communication wires are reversed
OFF OFF Unit is not communicating with TTDM-128 or host.
Selecting location measurement units
The TTA-SIM-2 can be configured to display leak location in
either feet or meters. To select the desired units:
• Press the RESET button and hold it for approximately 3 seconds,
until the display shows “Unt”.
• A small vertical bar in the LCD will appear next to either the Ft or
M label. Press (but do not hold) the RESET button to select the
desired units. When the vertical bar is next to the desired units,
press and hold the RESET for 3 seconds to accept the setting and
return to normal operation,
Reset pushbutton
Units indicator
Figure 11. RESET pushbutton and units indicator locations
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nVent reserves the right to change specications without notice.
RaychemTraceTek-IM-H57541-TTASIM-EN-1805
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