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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 final 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 specified
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 fit and strip to expose approximately 6 mm (1/4 in) of
conductor. Push the tip of a small flat-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
