ATI Technologies SmartTachSmartTach, User Manual

Page: 18 / 110

INSTALLATION
Page 2-4 SmartTach Operating Manual
TachSensor Connection
This connection is for use with the optional TS1 TachSensor. This
connection also functions as the I/O port for access to other signals (refer
to the I/O Port connection section for details on these functions). When
using the TachSensor make sure that nothing is connected to the PULSE
INPUT connection. Input Signal conditioning (Parameter 06) must be set to
TRG for the TachSensor to function properly.
Installation of Wiring Cables
The wiring cables should be neatly installed in a manner which will avoid
contact with hot engine components and high-voltage spark plug
wires/ignition coils. We strongly recommend spending extra time and
care when installing the wiring cables. This will avoid unnecessary
troubleshooting time for an erratic or non-functional instillation caused by
improper wiring.
The BNC cables at the SmartTach end should be clearly marked with their
purpose to avoid accidental connection to the wrong inputs. The can
easily happen if the unit is removed and replaced. Although the inputs
are protected from damage, unnecessary troubleshooting hassles will be
avoided by taking the proper precautions.
Power Supply Connection
The DC power supply connection is made through the plug-in terminal
strip supplied with the unit. The terminal strip is polarized and will only plug
into the unit in one direction. Care should be taken to insure that the wires
are connected to the terminal strip with the correct polarity. Pin #1 is the
positive terminal, and Pin #2 is the negative (ground) terminal. The unit is
reverse-voltage protected and will not be damaged if the polarity is
reversed (and also will not function). It is recommended that 16 gauge or
heavier wire be used for the power connection. The SmartTach enclosure
is isolated from power ground.
Other Connections
The following connections are optional and provide a means of
interfacing the SmartTach with external electronic equipment such as test
cell computers, data acquisition systems, strip-chart recorders, etc.