KEB combivert R6-S - Preventing Disturbances, Auto-Restart, and Short-Circuit Protection

Page 1.2 - 4 COMBIVERT R6-S © KEB, 2008-02
Product overview
1.2.3 Functional principle
After switching on the DC interconnection is supplied with voltage after correct initialisation phase. If the voltage
in the DC interconnection exceeds an adjustable threshold due to generative operation, the COMBIVERT R6-S
starts to regenerate the energy into the net by square-wave modulation. The COMBIVERT can synchronize to
mains frequencybyasychronizationmoduleinfrontofthecommutationthrottle,orharmoniclter,soregenera-
tion is done synchronously to the mains frequency.A sine-wave current is formed of itattheharmoniclter.The
compliancewiththerequirementsinaccordancewithEN61000-3-12issecuredonlybytheharmoniclter.
If the regenerative power decreases an adjustable value, the COMBIVERT R6-S switches off the regeneration
after expiration of a turn-off delay and it will be turn into motoric operation.