Accelerometer cables can be the weak link in most test environments. These are very small cables that need to be handled with care. A couple of general rules to follow when using accelerometer cables:
- Do not coil into a tight circle when storing as this can set the stage for later problems.
- Do not run the cabling across the floor. Besides getting the cable dirty and shortening its lifespan, these are hazards for people to trip on which will bring harm to the cables and potentially rip whatever the cables are connected to off the shelf.
- Do not unwind cabling by pulling hard. This could create unnecessary knots which will disrupt connection.
- On top of all this just look for kinks, breaks, disconnects or anything else that is obviously incorrect.
- If all else fails, replacements are an inexpensive fix to a test setup.
Accelerometer mounting
Did your accelerometer fall off? Is it mounted properly? Is power to the accelerometer turned on through the software?
Are the values in your limit tab set appropriately?
The limits tab is where the most common errors happen, but you should look through all of the test settings to make sure everything is running properly.
Is your gain turned up? Is your drive cable connected? Is your accelerometer sensitivity set appropriately?Make sure your gain is set to default settings which will enable “auto” adjustment and allow the controller set the gain intelligently. Proper gain setting helps reduce noise and distortion and allows for the widest possible dynamic range.
Did the amplifier trip?If the amplifier tripped, what is the error message on the front panel? The amplifier can trip for a number of reasons. The most common reasons would be over-current, over-travel (displacement), over-voltage, and temperature sensors (over heat).
Analyze the graphs for additional troubleshooting.Are there resonances in the product causing the test to abort? Take a look at your drive vs input graph. This plot shows whether your drive limits (max start up voltage or system gain) are configured correctly for the test.
Can VibrationVIEW fix it?VibrationVIEW gives you the ability to adjust many control settings while maintaining safety limits and precautions. Use the tools you have, including help files, error messages, and the amplifier’s front panel which displays any error code.
