Safety information
22 Operating instructions RHD
ELTROPLAN
-
REVCON
Elektrotechnische Anlagen GmbH
Placing of the commutation choke
If the frequency converter is connected to an external commutation choke, the connection
of the power feedback unit has to be done at its network terminals (figure 2.6.3). Is the
connection done at the load terminals of the commutation choke its inductivity prevents the
synchronising to the supplying net and the induction voltage of the choke when it is
switched of under load may result in damages to the power feedback device.
Danger!
Over voltages may cause serious damages to the connected frequency inverter and /or to the
power feedback unit and to the other loads.
REVCON
M
60kW
FC
Mains supply
Not allowed!
Figure 3.5.3
The same things apply to the also non-admissible pre-connection of further commutation
chokes.