Page 4.1 - 6 COMBIVERT R6-N © KEB, 2015-07
Preparatory measures
Voltage With
Respect To
Ground
TheconnectionofCOMBIVERTR6isallowedto:
a) Symmetrical mains with a voltage phase (L1, L2, L3) with respect to neutral conductor/
ground (N/PE) of maximum 305 V.
b)Phaseconductorgroundedmains:
• the control system is no longer regarded as “safe isolated circuit”, further protection
measures are required therefore (see "Safe isolation").
• with this type of power system, the max. voltage phase / earth must not exceed 528 V
absolute
• appropriate, external DC fuses at the DC connections are necessary for the 400 V class.
Use the COMBIVERT R6 without internal DC fuses.
• ContactKEBregardingEMClter.
An isolating transformer must be used for supply networks which exceed this value ! The
units may be damaged if this is not observed.
Stationary
Connection
TheCOMBIVERTR6isdesignedforxedconnection,sincedischargecurrentsof>3.5
mAoccurespeciallywhenusingtogetherwithEMIlters.Therefore,therequirementsor
instructions from EN 60204-1 (VDE 0113) and EN 61800-5-1 (IEC 0160-5-1) must be ob-
served.
Insulation
Measurement
When doing an insulation or voltage measurement in accordance with in EN 60204-1 /
VDE0113-1,thepowersemiconductoroftheunitandexistingradiointerferenceltersmust
be disconnected because of the danger of destruction.
When doing an insulation or voltage measurement in accordance with in EN 60204-1 /
VDE0113-1,thepowersemiconductoroftheunitandexistingradiointerferenceltersmust
be disconnected because of the danger of destruction.
This is permissible in compliance with the standard, since all inverters are given a high volt-
age test in the end control at KEB. In the case of special requirements please contact KEB.
Different
Earth Poten-
tials
When using components without isolated inputs/outputs, it is necessary that equipotential
bonding exists between the components to be connected (e.g. through the equalizer). Dis-
regard can cause destruction of the components by the equalizing currents.
Prevent
disturbances
A trouble-free and safe operation of the COMBIVERT R6 is only guaranteed when the con-
nection instructions below are strictly followed. Incorrect operation 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 to PE !
• Only use suitable circuit elements to control the logic and analog inputs, whose con-
tacts 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 connection to mains
earth (avoid earth loops)
• UseexclusivelythelinecommutationthrottlespeciedbyKEB.
• The average value of the supplied DC current may not exceed the maximum DC cur-
rent.
• If several frequency inverters are connected to the COMVIBERT R6-S the max. per-
missible network component currents and DC link capacities of all connected frequency
inverters must be considered during supply operation (see technical data).