KEB Combivert R6 Instruction Manual page 9

Safety Instructions
Prevent
Disturbances
Automatic Re-
start
Not Short-Cir-
cuit Proof
(Supply)
Conditionally
Short-Circuit
Proof
(Feedback)
Cyclic Activati-
on And Deacti-
vation
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-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 finish where necessary.
• Ground the cabinet or the system earth star point with the shortest connection to mains
earth (avoid earth loops)
• Use exclusively the commutation reactor 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 COMVIBERT R6-S the max. permis-
sible DC link capacities of all connected frequency inverters must be considered during
supply operation (see technical data).
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 protective features added where necessary.
The COMBIVERT R6 is not short-circuit proof at the power supply input ! If the I
is adapted with a gR fuse, a conditional protection at supply input is possible. The short-
circuit protection at DC output is ensured by internal or external aR respectively gR fuses.
The COMBIVERT R6 is conditionally short-circuit proof (EN 61800-5-1 / VDE 0160). After
resetting the internal protection devices, the function as directed is guaranteed.
Exception:
• If an earth-leakage fault or short-circuit often occurs at the output, this can lead to a
defect in the unit.
With applications requiring the COMBIVERT R6 to be switched on and off cyclically, maintain
an off-time of at least 5 min. If you require shorter cycle times please contact KEB.
t-protection
2
GB - 9