ATI Technologies SmartTachSmartTach, User Manual

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OPERATION
Page 5-6 SmartTach Operating Manual
Range Output Example 2
This configuration will use two Range Outputs along with a oil pressure
sensor connected to the Aux. input of the I/O connector. Power to the
ECU will be cut if the measured rpm exceeds the user specified limit of
6000 rpm or if the signal from the oil pressure sensor is less than 0.5Vdc and
measured rpm is greater than 300 rpm.
Oil Pressure
Sensor (0-5Vdc)
+12v
ECM
Range Output 1 "A"
"B"
Sm
art
T
ach
Normaly Open Relay
I/O Connector
Range Output 2 "A"
"B"
Aux Inupt
Figure 5 - 5: Range Output Overspeed/Low Oil Pressure
Parameter Settings
Parameter
Group
Parameter ID
and Description
Parameter
Value
Range1
40 Range1 Output Function ifN
41 Range1 Output Measurement Condition N<B
44 Range1 Output Variable “B”
6000
Range2
50 Range2 Output Function ifN+V
51 Range2 Output Measurement Condition N<B
52 Range2 Output Voltage Condition
V>C
54 Range1 Output Variable “B” 300
55 Range1 Output Variable “C” 0.5
Logic Table
Measured
Speed
Aux. Input
Voltage
Output
Range1
Contacts
Range2 ECU Power
Relay
100 rpm 0.1Vdc Closed Closed Closed
1000 rpm 2.7Vdc Closed Closed Closed
1000 rpm 0.2Vdc Closed Open Open
6200 rpm 3.5Vdc Open Closed Open