Meggitt vibro-meter SpeedSys300 ODS301, User Manual

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USER MANUAL Document reference MAODS301/E
SpeedSys300 ODS301 overspeed detection system Edition 4 - May 2022
D - 4
How do I use a Meggitt vibro
-
meter TQxxx/IQSxxx proximity measurement chain as
APPENDIX D: FREQUENTLY ASKED QUESTIONS (FAQ)
NOTE: So for a Meggitt vibro - meter
®
TQxxx/IQSxxx proximity measurement chain,
configure Sensor OK current range: 15.5 to 20.5 mA.
(These default values correspond to the normal operating range of the current
output signal for an IQSxxx signal conditioner – without diagnostics.)
When evaluating the SpeedSys300 ODS301 module or developing configurations, it can be
convenient to use a signal generator to provide an input signal to the module (effectively
emulating a sensor / measurement chain).
For a signal generator providing a voltage output signal:
•
Use the 3-WIRE VOLTAGE connector, with the following connections:
Sig. gen. High (+) to ODS301 SIG and Sig. gen. Low (COM/GND) to ODS301 V−.
See
Table 2-4 for further information on the 3-WIRE VOLTAGE connector.
And in the SpeedSys300 software:
•
On the Measurement tab, select Sensor type: 3-wire voltage, and configure Trigger level
- voltage and Trigger edge, depending on the signal generator’s output.
• On the Diagnostics tab, configure Sensor OK voltage range to configure the OK check
for the input signal, depending on the signal generator’s output.
This is necessary to avoid module errors such as Sensor error and Bad pulse detected.
Once the connections between the Meggitt vibro - meter
®
TQxxx/IQSxxx proximity
measurement chain and the SpeedSys300 ODS301 module are correct, the information in
D.3 The Error LED on the front panel of the SpeedSys300 ODS301 module is showing RED.
How do I determine the problem?
can be useful in helping to diagnose problems with the
configuration of the modules.