Maintenance; Repair - KEB COMBIVERT F5 Series Instructions For Use Manual

bASIC SAFETy INSTRUCTIONS
Switching an the input
For applications that require cyclic switching off and on of the drive converter, maintain
an off-time of at least 5 min after the last switch on. If you require shorter cycle times
please contact KEB Automation KG.
Short-circuit resistance
The drive converters are conditional short-circuit proof. After resetting the internal pro-
tective devices the intended function is guaranteed.
Exceptions:
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•
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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-
► Examine and clean extracted air filter and cooling air filter of the control cabinet.
► Check the function of the fans of the drive converter. The fan must be replaced in
► In the case of liquid-cooled drive converters a visual test of the cooling circuit for

1.7 Repair

In case of malfunction, unusual noises or smells inform a person in charge!
DANGER
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.
ling fins and protective grid of the fans.
case of audible vibrations or squeak.
leaks and corrosion must be carried out.The cooling circuit must be completely
empty if a unit shall be switched off for a longer period. The cooling circuit must be
blown out additionally with compressed air at temperatures below 0°C.
Unauthorized exchange, repair and modifications!
Unpredictable malfunctions!
► The function of the drive converter is dependent on its parameteri-
zation. Never replace without knowledge of the application.
► Modification 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.
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