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

5.

Operation of the Unit

5.1

Operation with PC and system software COMBIVIS

Instructions for the installation and operation of the system software COMBIVIS can be taken
from the appropriate software instruction.
5.2

Switch-on procedure

The COMBIVERT R6-N is initialized after connection of the power supply. The power circuit
identification is checked first. If an invalid power circuit 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-N changes into synchronisation phase if a valid power circuit is rec-
ognized.The following procedures take place one after another during this synchronisation
phase:
• Testing the input phases -> error „E.nEt" is triggered if a net phase is missing.
• Testing the phase allocation -> error „E.SYn" is triggered if a phase allocation error occurs
(reverse rotation).
The actual mains frequency is determined and the correct connection of the COMBIVERT
R6-N is secured after successful synchronisation. If the control release (terminal ST) is set,
the COMBIVERT R6-N starts independently with the specified operation. Depending whether
regenerative requirement is available, the COMBIVERT R6-N is in status „rEGEn" or „Stb".
Status „Stb"
COMBIVERT R6-N 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 activated
and the unit changes into regenerative operation. Further the regenerative unit is switched
active, if regenerative operation is requested by an additional installed COMBIVERT R6-N in
the system (master /slave operation).
Operation of the Unit
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