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Profile Alert High

Profile Alert Low

8

MACHINE STATE DETECTION

The vibration response of a hydro

machine varies according to its speed,

load and operating regime. Compass

6000 allows individual alarm limits to

be set up for specific machine states,

such as machine run-up, generating

at partial loads, pumping and phase

compensation, so potential faults can

be detected earlier with less risk of

false alarms.

AUTOMATIC DIAGNOSTICS

The diagnosis software Advisor scans

the database to automatically detect

symptoms of a developing machine

fault. The neural-network algorithm

assigns a probability ranking for

several potential faults, which can be

trended over time as the symptoms

become more pronounced.

AUTOMATIC ALARM LIMITS

VC-6000

®

can be set up to alarm limits

according to ISO 7919 and ISO 10816.

This is perfect for commissioning.

The limits can be adjusted later to meet

customer application requirements

Compass 6000 offers unique monitoring functionality

Machine state detection

Transient machine state monitoring

MAIN MONITORING

STRATEGIES

• Machine state detection

• Measurements dedicated to

process classes

• Profile monitoring

• Alarms on spectra

• Safety function with SM-610-A06

TU

PhTu

PU

PhPu

STOP

TU = Turbine

PhTu = Phase comp.

(turbine dir.)

PU = Pump

PhPu = Phase comp.

(pump dir.)

= Time signal

Standard Monitoring (scalar vs. time)

Profile Monitoring (scalar vs. RPM)

Time

Scalar Value

Reference

Measured Signal

Overall Alert High

Overall Alert Low

RPM

Scalar Value

Reference

Measured Signal

No alarms

generated

Alarms

generated

Evaluation zones, s

max

30

20

100

50

100

200

300

400

500

200

500 1000 2000

Max. shaft

speed in 1/min.

Max. shaft vibration

relative to the bearing in µm

A

B

C

D