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3.5 Speciedapplication

The COMBIVERT R6-S serves exclusively for the supply of frequency inverters with DC input

and/or regeneration of excess energy into the supply system. The operation of other electrical

consumers is prohibited and can lead to malfunctions or to the destruction of the units.

The used semiconductors and components of KEB are developed and dimensioned for the

use in industrial products. If the product is used in machines, which work under exceptional

conditions or if essential functions, life-supporting measures or an extraordinary safety step

mustbefullled,thenecessaryreliabilityandsecuritymustbeensuredbythemachinebuild-

er. The operation of our products outside the indicated limit values of the technical data leads

to the loss of any liability claims.

All output functions of the R6 are "one-channel according to ISO 13849, no diagnostic cover-

age and therefore not safe." If required, additional protective measures must be met by the

user.

3.5.1 Standard operation

IftheDClinkvoltageincreasestoavalueabovethepeakvalueofthemainsvoltage(nega-

tivepower),regenerationofthecurrentintothemainsoccursautomatically.Theregenera-

tivelevelisdenedwithparameterCP.34orcS.02.Themainsvoltageisanalogmeasured.

Regenerationiscarriedoutinsquare-wave,wherebythecurrentowperiodiscorresponding

to the times of a B6 bridge circuit. Regeneration is completed if the regenerative and puls off

level(CP.32orcS.06)isfallenbelow.

3.5.2 Abnormal operation

When exceeding the permissible limit values for voltage, current or temperature the current

owbetweenDClinkandmainsisblockedduringregeneration.Anappropriateerrormes-

sage is also displayed during supply. The unit must be disconnected from the supply system

or the load must be switched off in case of overcurrent or overload. This can be done by

opening the control release of the frequency inverter.

At factory setting the modulation is switched off in case of a net phase failure and error mes-

sage E.nEt is displayed.

Special adjustments from KEB are necessary if the modulation and/or the standard operation

shouldstartagainwithinadenedtimeincaseofreturnofpowersupply.

GB - 59

Introduction

KEB combivert R6-S User Manual

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