Connection Of The Control Boards - KEB COMBIVERT F5 Instructions For Use Manual

eLecTrIcAL INSTALLATION

5.6 connection of the control boards

In the following circuit examples, the WRA of the drive converter is connected to the
mains supply via an AFE filter. The temperature monitoring of the AFE filter occurs
by the WRA. The inputs and outputs are pre-programmed for the subsequent circuit
example.
cAUTION
ATTENTION
Note to further documentation.
Programming instructions AFE
contactor lock required!
K2 and K3 never switch simultaneously (destruction of the device).
For safe operation of the drive converter in the Q4 mode
► use the power contactors K2 and K3 (pre-charging and main con-
tactor) with positively driven auxiliary contacts.
This ensures in case of failure a secure locking of defective contactors.
check before starting up!
► Pre-charging contactor K2 and mains contactor K3 interlock against
each other.
► Parameterization of I3 in the drive converter control (pre-parameter-
ized).
► Protect motor against voltage peaks.
► Start the coolant flow (warranty by the volume flow meter).
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