Magnetek Quattro DC Elevator Drive Benutzerhandbuch

 

Preventive maintenance is primarily a matter of 
routine inspection and cleaning.  The most 
important maintenance factors are the 
following: 

Is there sufficient airflow to cool the drive?  

Has vibration loosened any connections? 

The Drive needs to have sufficient air flow for 
long, reliable operation. Accumulated dust and 
dirt accumulation can reduce airflow and cause 
the heat sinks to overheat. The heat sinks can 
be kept clean by brushing, while using a 
vacuum cleaner.   

Periodically, check air filters on enclosure 
doors, clean if dirty and replace as necessary. 

Periodically, clean the cooling fans to prevent 
dirt buildup.  At the same time, check that the 
impellers are free and not binding in the 
housing. 

Periodically, check all mounting and electrical 
connections. Any loose hardware should be 
tightened. 

WARNING 
Hazardous voltages may exist in the drive 
circuits even with drive circuit breaker in off 
position.  NEVER attempt preventive 
maintenance unless incoming power and 
control power is disconnected and locked out.  
Also, ensure the DC Bus charge light is out.  

Remember when servicing the Drive: 
Hazardous voltages may exist in the drive 
circuits even with drive circuit breaker in off 
position.   

IMPORTANT 
Use extreme caution: Do not touch any circuit 
board, the drive, or motor electrical 
connections without making sure that the unit 
is properly grounded and that no high voltage 
is present. 
NEVER attempt maintenance unless the 
incoming three phase power and control power 
is disconnected and locked out.   
Also, ensure the DC Bus charge light is out, 
verify with a voltmeter that no voltage exists 
between the (+) and (-) terminals. 
 
 

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