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BASIC SAFETY INSTRUCTIONS

Short-circuit resistance

The drive converters are conditional short-circuit proof. After resetting the internal pro-

tective devices the intended function is guaranteed.

Exceptions:

• Repeatedly occurring ground faults or short-cicuits at the input can lead to the de-

vective of the unit.

• The COMBIVERT F5-AIC is not short-circuit proof at the mains input in case of an

error or in status nOP! Conditional protection at the mains input is possible with a

semiconductor fuse.

• The short-circuit protection at the DC output must be ensured by external aR or gR

fuses.

Switching an the input

Forapplicationsthatrequirecyclicswitchingo󰀨andonofthedriveconverter,maintain

ano󰀨-timeofatleast5minafterthelastswitchon.Ifyourequireshortercycletimes

please contact KEB Automation KG.

1.6 Maintenance

The following maintenance work has to be carried out when required, but at least once

per year by authorized and trained personnel.Check unit for loose screws and plugs and

tighten if necessary.

► Check system for loose screws and plugs and tighten if necessary.

► Clean drive converter from dirt and dust deposits. Pay attention especially to coo-

lingnsandprotectivegridofthefans.

► Examineandcleanextractedairlterandcoolingairlterofthecontrolcabinet.

► Check the function of the fans of the drive converter. The fan must be replaced in

case of audible vibrations or squeak.

► In the case of liquid-cooled drive converters a visual test of the cooling circuit for

leaks and corrosion must be carried out.The cooling circuit must be completely

emptyifaunitshallbeswitchedo󰀨foralongerperiod.Thecoolingcircuitmustbe

blown out additionally with compressed air at temperatures below 0°C.

1.7 Repair

In case of malfunction, unusual noises or smells inform a person in charge!

DANGER

Unauthorized exchange, repair and modications!

Unpredictable malfunctions!

► The function of the drive converter is dependent on its parameteri-

zation. Never replace without knowledge of the application.

► ModicationorrepairispermittedonlybyKEBAutomationKGau-

thorized personnel.

► Only use original manufacturer parts.

► Infringement will annul the liability for resulting consequences.

KEB COMBIVERT 19F5 Series User Manual

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