SAB-Q2 Quick Start
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January 12, 2011
models are capable of operating with Start/Stop and PWM sensors. The SAB-Q2-?-SSI models are
capable of operating with SSI sensors.
7. Sensor Setup
A. Transducer Type
The SAB-Q2 default setting is RPM. If a SSI or PWM sensor is being used then sensor type must
be changed to SSI or PWM in the setup menu. Recommended SSI sensor is 24-bit binary SSI.
SSI sensors can have their output divided by 2, 4, 8, or 16 by changing the sensor type. This can
be used to adjust the effective resolution of the sensor if a sensor with too high a resolution is
ordered.
B. Sensor Length
Enter the length of the sensor in inches. This length must be greater than the farthest distance the
magnet can travel to on the wand. If this length is too small, positions from the sensor could
become unpredictable.
C. Gradient
The gradient (in microseconds per inch) of a RPM or PWM sensor must be entered. This value is
printed on the head of the sensor at the factory. If you are using a SSI sensor, enter a value of
1.00000.
D. Recirculations
The number of recirculations determines the worth of each count. A higher number of
recirculations increases the resolution of the counts but increases the update time. The
approximate value of a count can be determined through the following formula: (0.002
÷
recirculations) inches per count.
8. Position Setup
A. Offset
The offset is subtracted from the position before calculating any analog output, before doing a
send all, and when activating the marker output. Enter this value in counts.
B. Marker
The marker position is the number of counts at which the marker output is activated. See the SAB-
Q2 manual for more information.
9. Further Setup
Some material related to setup of the SAB-Q2 is not covered in this guide. For more information on
advanced setup, see the SAB-Q2 manual.
Rapid Controls Inc.
Box 8390
Rapid City, SD
57709
Phone: 888-510-7688
Fax: 605-341-5496
http://www.rapidcontrols.com/
email: [email protected]
