Safety information
Operating instructions SVCD(S)
21
123456278
-
419A58
Elektrotechnische Anlagen GmbH
1
Placing of the commutation choke
If the frequency converter is connected to an external commutation choke, the connec-
tion 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 pre-
vents 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.
M
60kW
FC
REVCON
Mains supply
Not allowed!
Figure 2.6.3
The same things apply to the also non-admissible pre-connection of further commuta-
tion chokes.
