Rockwell-automation 1441-DYN25-Z Dynamix 2500 Data Collector Manual de usuario descargar pdf (Pagina 70)

70 Rockwell Automation Publication 1441-UM001B-EN-P - September 2012

Chapter 3 Setting Up Measurements

ESP Filters

Use an Envelope Spectrum Processing (ESP) filter to detect bearing and other

component defects. The ESP filters apply a band pass filter, envelope the time

domain signal, and then perform a frequency analysis on the result. ESP filters are

built into the Dynamix 2500 data collector, and you cannot change them in the

Emonitor software. You can use ESP filters with the magnitude and spectrum

measurement definitions.

The following ESP filters are available with the Emonitor software and the

Dynamix 2500 data collector:

• 0.6…1.25 kHz

• 1.25…2.5 kHz

• 2.5…5 kHz

• 5…10 kHz

• 10…20 kHz

High Pass Filters

Use a high pass filter to remove high vibration, low frequency signal components

that would dominate the signal. For example, structural vibration or signal

components generated by an integrator.

The high pass filter excludes all frequencies below a defined frequency. It allows,

or passes, frequencies above the defined frequency. You define these and other

band filters using the Setup > Band Filter function in the data collector. You can

use a high pass filter with the magnitude and spectrum measurement definitions.

If you select Analog as the data collector filter type, when you define a high pass

filter, the data collector uses one of the following filters determined by the

following formula.

IMPORTANT

In Emonitor software, on the Data Collector dialog box, the

Enpac Emulation parameter must be set to No.

See Data Collector Advanced Settings Parameters on page 112

for Settings descriptions.

2 (max frequency)

number of lines

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1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 217 218

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Rockwell-automation 1441-DYN25-Z Dynamix 2500 Data Collector Manual de usuario Pagina 70