Operation Of The Unit; Operation With Pc Und System Software Combivis; Switch-On Procedure - KEB COMBIVERT R6-S Instruction Manual

7.

Operation of the Unit

7.1

Operation with PC und system software COMBIVIS

Instructions for the installation and operation of the system software COMBIVIS can be taken
from the appropriate software instruction.
7.2

Switch-on procedure

The COMBIVERT R6-S is initialized after connection of the power supply. The power circuit
identification is checked first. If an invalid power unit is recognized, error „E.Puci" (Power unit
code invalid) is released and displayed in the operator. This error cannot be reset, the power
circuit must be checked.
The COMBIVERT R6-S changes into synchronisation phase if a valid power circuit is rec-
ognized. The following procedures happens one after another during this synchronisation
phase:
• Inspection of correct synchronisation connection (error "E.nEt" is released, if the synchro-
nous signal is missing)
• Inspection of the phase allocation of synchronous signals to the mains phases. Error
"E.SYn" is released if a phase is missing or in case of phase allocation failure.
The actual line frequency and the mains voltage is determined after successful synchronisa-
tion. The correct connection of the COMBIVERT R6-S is now ensured. If the control release
(terminal ST) is set, the COMBIVERT R6-S starts independently with the normal operation.
Depending whether regenerative requirement is available, the COMBIVERT R6-S is in status
„rEGEn" or „Stb".
Status „Stb"
COMBIVERT R6-S detects a typical voltage level in the DC link circuit of the connected fre-
quency inverter (motor operation) and keeps the modulation signals of the regenerative unit
deactivated.
Status „rEGEn"
If the DC voltage in the DC link (CP.09 or ru.19) exceeds the value of the regeneration
level (CP.34 or cS.02) referring to the reference value ru.18, the modulation signals are ac-
tivated and the unit changes into regenerative operation. Furthermore the regenerative unit
is switched active, if regenerative operation is requested by an additional installed COMBI-
VERT R6-S in the system (master /slave operation).
Operation of the Unit
GB - 91