Rockwell Automation 1440-SDM02-01RA XM-124 Standard Dynamic Measurement Module - Manuel (Page 95)

Rockwell Automation Publication 1440-UM001C-EN-P - May 2014 95
Configure the XM-124 Standard Dynamic Measurement Module Chapter 2
Ch1/Ch2 Spectrum/Waveform Status (XM Serial
Configuration Utility only) States whether a fault condition exists on the associated channel. If a
fault exists, the spectrum/waveform data may not be accurate.
The following conditions can cause a fault:
• A transducer fault on the associated channel
• Sampling Mode set to ‘Synchronous’ and there is no tachometer
signal or there is a fault on the tachometer channel
• The machine speed changes too fast for the tracking algorithm to
keep up or if the frequency of FMAX goes outside the specified
criteria (see Sampling Mode on
page 68 )
Get Waveform Data Only (XM Serial Configuration
Utility only) Controls whether the spectrum is calculated by the Configuration
Utility or the Standard Dynamic Measurement Module. Check to upload only waveform data from the
module. The Configuration Utility calculates and
displays the spectrum using the collected
waveform data.
Clear to upload both the waveform and spectrum
data from the module.
States whether a fault condition (no tachometer signal or transducer
fault) exists on the tachometer channel. If a fault exists, the speed
value may not be accurate. Possible status values:
• No Fault
• Fault
Shows the measured average DC offset of the tachometer signal. This
value is compared with Fault High and Fault Low to determine
whether the tachometer is working properly. The tachometer must be enabled (Pulses Per
Revolution set to 1 or more).
Speed Value Shows the measured speed value.
Peak Speed Shows the greatest measured Speed Value (positive or negative)
since the most recent reset.
Acceleration Measured Value Shows the measured acceleration value. The acceleration is the rate of
change of the Speed Value.
4…20 mA Output A and B (XM Serial
Configuration Utility only) Shows the current output value in the range of 4…20 mA.
Status (XM Serial Configuration Utility only) States whether a fault condition exists on either channel. If a fault
exists, the magnitude and phase values may not be accurate. Possible status values:
• No Fault
• Fault
SMAX Magnitude The greatest peak magnitude around the orbit. SMAX Measurement Requirements:
• The transducers on channel 1 and 2 must be
similar.
• The transducers must be installed around the
machine shaft, in the same radial plane, 90°
apart (vertically and horizontally, for example).
• Both channels must be configured for the same
filtering and Full Scale settings.
• The Transducer Nominal Sensitivity parameter
must be set for displacement (mils or μm).
• We recommend that the tachometer is enabled
(Pulses Per Revolution set to 1 or more) and
a tachometer signal present.
• Both channels must be set to either Standard or
Thrust Position Measurement Mode.
SMAX Phase The phase at which the greatest peak magnitude occurs around the
orbit.
Table 12 - Monitor Data Parameters
Parameter Name Description Values/Comments
XM Configuration
Utility EDS File
Speed Status Transducer 3 Status
XM Configuration
Utility EDS File
DC Bias (Gap) Transducer 3
Measured DC Bias