ATI Technologies SmartTachSmartTach, User Manual

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OPERATION
SmartTach Operating Manual Page 5-5
for each Range Output (A and B) at the I/O Connector. The Range
Output contacts are closed when the user specified condition is true.
The Range Outputs can be used for functions such as; safety stops,
controlling warning lights, Triggering data acquisition systems and many
more. The functions of the Range Outputs range from a simple “Always
On” to a complex comparison of measured speed and Aux. input
voltage. Chapter 4 contains complete descriptions of all Range Output
Parameters.
Range Output Example 1
This configuration will cut power to the engine controller if the measured
rpm exceeds the user specified limit of 6000 rpm
+12v
ECM
Range Output 1 "A"
"B"
Sm
art
T
ach
Normaly Open Relay
I/O Connector
Figure 5 - 4: Range Output Overspeed
Parameter Settings
Parameter
Group
Parameter ID
and Description
Paramete
r
Value
Range1
40 Range1 Output Function ifN
41 Range1 Output Measurement Condition N<B
44 Range1 Output Variable “B”
6000
Logic Table
Measured
Speed
Aux. Input
Voltage
Range1 Output
Contacts
ECU Power
Relay
500 rpm Don’t Care Closed Closed
6200 rpm Don’t Care Open Open