KEB COMBIVERT R6 Instruction Manual page 12

Safety Instructions
Insulation
measure-
ment
Different
earth po-
tentials
Prevent
disturbanc-
es
Automatic
restart of
operation
GB - 12
When doing an insulation or voltage measurement in accordance with in
EN 60204-1 / VDE 0113-1, the power semiconductor of the unit and existing
radio interference filters must be disconnected because of the danger of de-
struction. This is permissible in compliance with the standard, since all inverters
are given a high voltage test in the end control at KEB. In the case of special
requirements please contact KEB.
When using components without isolated inputs/outputs, it is necessary that
equipotential bonding exists between the components to be connected (e.g. by
compensating cable). Disregard can cause destruction of the components by
the equalizing currents.
A trouble-free and safe operation of the COMBIVERT R6 is only guaranteed
when the connection instructions below are strictly followed. Incorrect opera-
tion or damage may result from incorrect installation.
• Pay attention to mains voltage.
• Install power cables and control cables separately (>15 cm separation).
• Use shielded / twisted control lines. Lay shield at one side to COMBIVERT
R6-S to PE !
• Only use suitable circuit elements to control the logic and analog inputs,
whose contacts are rated for extra-low voltages.
• Housing of the COMBIVERT R6 must be well earthed. Screens of larger
power cable must be directly and securely attached to both the inverter PE
terminal and the motor ground terminal (remove paint).
• Ground the cabinet or the system earth star point with the shortest connec-
tion to mains earth. (avoid earth loops) !
• Use exclusively the line commutation throttle specified by KEB.
• The maximum DC current of the R6-S must not be exceeded.
• If several frequency inverters are connected to the COMVIBERT R6-S, the
max. permissible DC link capacities of all connected frequency inverters
must be considered (see technical data).
The COMBIVERT R6 can be adjusted by way that the inverter restarts auto-
matically after an error case (e.g. phase failure). System design must take this
into account, if appropriate, and additional monitoring or protective features
added where necessary.