KEB COMBIVERT R6 Instruction Manual page 14

Safety Instructions
Caution
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-N 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 connection to mains
earth. (avoid earth loops)
• Use exclusively the line commutation throttle specified by KEB.
• The average value of the supplied DC current may not exceed the maximum DC current.
• If several frequency inverters are connected to the COMBIVERT R6-N the max. permis-
sible DC link capacities of all connected frequency inverters must be considered during
supply operation (see technical data).
Warning
Caution
The COMBIVERT R6 is not short-circuit proof at the mains input ! Conditional protection at
the mains input is possible if the I
protection at DC output is ensured by internal or external aR respectively gR fuses.
Caution
The COMBIVERT R6 is conditionally short-circuit proof (EN 61800-5-1 / VDE 0160). The
intended function is guaranteed after resetting the internal protection devices.
Exception:
• If earth- or short circuits often occurs at the output, this can lead to a defect in the unit.
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Prevent malfunctions
Automatic restart
The COMBIVERT R6 can be adjusted by such way that the inverter restarts
automatically after an error case (e.g. broken phase line). System design
must take this into account, if appropriate, and additional monitoring or pro-
tective features added where necessary.
Not short-circuit proof (supply)
t-protection was adapted with a gR fuse. The short-circuit
2
Conditionally short-circuit proof (regeneration)