Turn-On And Operation Procedure - KEB combivert R6-S Instruction Manual

Operation of the Unit
5.3

Turn-on and operation procedure

The COMBIVERT R6-S is initialized after connection of the main line supply. The power circuit identifi cation is
checked fi rst. If an invalid power circuit is recognized, error "E.PuCi" (power unit check) is triggered and displayed
in the operator. This error cannot be reset, the power circuit must be checked.
If a valid power circuit is recognized, COMBIVERT R6-S changes into status "SYn". The following procedures take
place one after another during this synchronization phase:
• Verifi cation of correct synchronization to the line, (error "E.nEt" is triggered, if the synchronization signals are
missing)
• Verifi cation of the phasing of the synchronization signals to the main line phases. Error "E.SYn" is triggered if
a phase signal is missing or in case the phasing is not correct.
• The actual line frequency is determined.
The unit is now ready for operation. If the enable (terminal X2A.12) is activated, the COMBIVERT R6-S is put into
operation. Depending on the actual value of the DC bus voltage, the COMBIVERT R6-S is in status "rEgEn" or
"Stb".
Status "Stb"
COMBIVERT R6-S detects the idle voltage level in the DC bus circuit of the connected frequency inverter (motor
operation) and keeps the modulation signals of the regen unit deactivated.
Status "rEgEn"
If the DC bus voltage rises above 103% of the idle voltage (CP.9), the modulation signals are activated and the
unit changes into regen operation. Alternately, if another R6 unit connected in parallel switches into "rEgEn" mode,
the slave unit will immediately switch into regen mode simultaneously (master/slave operation of parallel units).
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