ATI Technologies SmartTachSmartTach, User Manual

Page: 44 / 110

PARAMETERS
Page 4-14 SmartTach Operating Manual
20 - Trigger Input Level
Parameter Group:
TrgInp
Options:
TS1
- Configure for TS1 TachSensor
AutoT
- Automatic Threshold and Hysterisis
AutoH
- Manual Threshold / Automatic Hysterisis
ManTH
- Manual Threshold and Hysterisis
0V
- Preset Zero-Cross Input (Magnetic Sensor)
TTL
- Preset TTL Logic Input
5V
- Preset 5V Logic Input
5VPU
- Preset 5V Logic Input (with pull-up enabled)
8V
- Preset 8V Logic Input
10V
- Preset 10V Logic Input
12V
- Preset 12V Logic Input
Default:
AutoT
- Automatic Threshold and Hysterisis
Purpose: This parameter is used to select the input signal level for the Trigger
input. The flexibility of the input signal conditioning circuit provides
compatibility with virtually all types of sensors and input signals.
How to Set: When using the TS1 TachSensor this parameter should be set to TS1,
for most other applications, this parameter should be to AutoT
(Automatic Threshold and Hysterisis). This will instruct the SmartTach
to continuously measure the input signal levels and automatically
set the threshold and hysterisis to their optimum values. In addition,
for signals with varying amplitudes such as magnetic sensors, the
SmartTach will dynamically adjust the levels as the amplitude
changes to maximize noise immunity.
If the signal level is already known (and constant), one of the other
parameter options can be selected. The manual settings allow full
manual control over the input threshold and hysterisis values (set
with other parameters).
NOTE: When this parameter is set to TS1, parameters 21-25 will be set
to Auto and cannot be changed.