Balancing and Diagnostics System for Complete Cooling Fans EJH - Schenck UK
Performance measurement
Signal analysis of the motor current
Vibro-acoustic diagnosis
Automatic unbalance measurement
Automatic unbalance correction
Automatic test sequence
Possible test procedures
Signals analysis of the motor current and frequency range for the indentifivcation of commutation errors
Signals analysis of the motor current and frequency range for the identification of commutation errors
VAD procedure (Vibro-acoustic diagnosis) for objective noise checking through analysis of the structure-borne noise signal in the time and frequency range.
Measurement of current, speed and direction of rotation
Determining the static and dynamic unbalance with automatic unbalance correction
Special features
Single or multiple-channel noise checking with integrated unbalance recognition, optional structure-borne noise checking
Powerful industrial PC for control of the test sequence
Software module for measurement of performance parameters and VAD procedure and measurement of static unbalance; large rotor type data memory, operator prompting, diagnostic program, statistics, process control, external interfaces
Control of brushless motors
Correction methods such as nibbling, drilling, coating or milling
Design
Range of application
Performance and objective noise tests in the production of complete cooling fans.
Measurement of dynamic and static unbalance in the fan plane for optimum unbalance correction.
Design
Machine frame with unbalance measurement and test equipment
Protective housing with wide loading doors
Integrated measurement and control cabinet with test computer and power unit for the test object
Two-station machine with manual loading, automatic test sequence and automatic unbalance correction.
Technical data
Data at a glance
EEJH
Measuring device
PC with signal processor
Test specimen
Complete blowers with
built-in motors
Test method
VAD, signal analysis,
unbalance
Unbalance correction
Automatically through
milling or other
methods
Cycle time
approx. 30 secs,
depending on blower type,
per station
Machine
Width A2
1850
Depth B2
1850
Height C
2040
2) Information non-binding, since dependent on the respective version
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