KEB Combivert R6-S Instruction Manual page 12

Safety Instructions
Prevent
malfunc-
tions
Automatic
restart of
operation
Conditional-
ly short-cir-
cuit proof
Cyclic
activation
and deacti-
vation
GB - 12
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 drive controllers are connected to the COMBIVERT R6-S the
max. permissible DC link capacities of all connected drive controllers 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. phase failure). System design must take
this into account, if appropriate, and additional monitoring or protective fea-
tures added where necessary.
The COMBIVERT R6 is conditionally short-circuit proof (VDE 0160). The in-
tended function is guaranteed after resetting the internal protection devices.
Exception:
• If earth or short circuits often occurs at the output during regenerative op-
eration, this can lead to a defect in the device.
• If earth or short circuits occur during supply operation, semiconductor pro-
tection is only limited.
With applications requiring the COMBIVERT R6 to be switched on and off cy-
clically, maintain an off-time of at least 5 min. If you require shorter cycle times
please contact KEB.Switching off during the initialization phase can cause un-
defined conditions.