2
Assembly and installation
BU 0500 GB
Subject to technical alterations
29
2.8.6 Jumper “A” mains input
In order to make the frequency inverter suitable for IT networks this jumper must be set to position 0.
Here it must be noted that the specified degree of radio interference suppression changes. Further details can
be found in Section 8.3. EMC.
=
Operation in IT network
= Position 0
= irrelevant = Position 1
= normal position = Position 2
2.8.7 Jumper “B” motor output
This jumper makes the device suitable for IT networks or reduces the leakage current of the frequency
inverter to earth. This may be necessary of several frequency inverters are operated via a single FI circuit
breaker.
Here it must be noted that the specified degree of radio interference suppression changes. Further details can
be found in Section 8.3. EMC.
=
Operation in IT network
= Position 0
= normal position = Position 1
= reduced leakage current – Position 2
(The set pulse frequency (P504) only has
a slig ht influ ence on the leaka ge current.)
Top side of device
Underside of the device
