Specifi Ed Application; Standard Operation; Abnormal Operation; Unit Identifi Cation - KEB combivert R6-S Instruction Manual

Preface
1.3 Specifi 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 line supply system. The operation of other electrical loads is prohibited and can lead to
malfunctions or destruction of the unit.

1.3.1 Standard operation

If the DC Bus voltage increases to a value above the peak value of the line voltage (negative power), regeneration
of the current to the line occurs automatically. The line voltage is measured by the R6 unit. Regeneration occurs
in a square-wave format, whereby the current fl ow period corresponds to the line frequency and the normal
conduction times of a standard 6 pulse bridge rectifi er circuit. Regeneration stops if the DC bus voltage decreases
below the line supply peak voltage (positive power).

1.3.2 Abnormal operation

When exceeding the permissible limit values for voltage, current, or temperature the current fl ow between DC link
and the line is blocked during regeneration. An appropriate error message is also displayed. When acting as a
supply, the unit must be disconnected from the supply system in case of over current, as current fl ow can not be
limited by the unit itself when in this mode of operation.
With factory settings, the modulation is switched off in case of a line phase loss and/or a synchronization line
failure. The error message E.nEt is displayed.
Special adjustments from KEB are necessary if the modulation and/or the standard operation should start again
within a defi ned time in case of return of power supply.
1.4 Unit identifi cation
1 9 . R 6 . S 3 E - R 0 0 A
Type A:
Design 0:
reserved 0:
K:
Voltage R:
Housing E
Options 0:
1:
Control S:
Series R6
Unit size 15,19
Heat sink (standard) B: Flat Heatsink
default
default
Kit (High speed Class J fuses, choke, fuse holder)
3-ph.; 180...550 V; AC
without pre-charging
pre-charging
1B.R6 (Block Commutation) 1N.R6 (NCM)
3: Pre-charging, DC-fuses
US - 5