Rockwell Automation 1441-PEN25-Z Enpac 2500 Data Collector - Manual (Page 258)

258 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 10 Run Up/Coast Down Application
Use the descriptions in this table to help you configure the parameters in the Run
Up/Coast Down Setup screen.
Table 44 - Run Up/Coast Down Setup Parameters
Parameter Name Description Values/Comments
Transducer Type of sensor used on channel 1 of the Enpac 2500.
The sensor type determines available options and engineering units
for subsequent setup fields. Options:
Accel ICP (g) (default)
Accel (g)
Accel ICP (m/s

)
Accel (m/s

)
Vel ICP (mm/s)
Vel (mm/s)
Vel ICP (ips)
Vel (ips)
Disp (mils)
Disp (um)
Volts AC
User (EU)
Sens (mV/EU) The transducer sensitivity in millivolts (MV) per engineering units
(EU). 1…2000 (mV/EU)
Default value is 50 (mV/EU)
Range (EU) The expected maximum amplitude range value.
The range should accommodate for unexpected events; if in doubt,
use caution and set the range 10…20 times higher than expected. Options:
.1 EU
.2 EU
.5 EU
1 EU
2 EU (default)
5 EU
10 EU
20 EU
50 EU
100 EU
200 EU
500 EU
1000 EU
2000 EU
Max M/c Speed The maximum speed that the shaft will reach in RPM.
Used with Max No Orders to determine the sampling rate. 10…60000 RPM
Default value is 3600 RPM
Max No Orders The maximum number of shaft orders of interest during analysis.
Used with Max M/c Speed to determine the sampling rate. 1…166
Default value is 32
Mode The method for initiating the data collection.
• Runup - The data collection starts when the machine speed rises
above Start Spd.
• Coast down -The data collection starts when the machine speed
falls below Stop Spd.
• Manual - Manually start data collection by pressing F4 (Start). No
tachometer signal is required for this mode.
Options:
Runup (default)
Manual
Coastdown
Pulses/Rev The number of tachometer signal pulses per revolution of the
reference shaft.
To acquire a suitable tachometer signal, the tachometer signal must
be approximately 1.5 volts peak-to-peak. The adverse effect of
excessively short tachometer pulse widths can be addressed by
setting the Max No Order to a higher value to increase the sampling
rate. .1…1000
Default value is 1
This number can be a multiple or a non-integer to
accommodate for gear ratios and others.