Installation and connection
29
TGH1394en/05.2007
4.4.4 Connection example EDS standard system with FTC470XET
See the next page for this example.
Key for connection example:
You must ensure that all live conductors are routed
through the measuring current transformer. Do not route
any PE conductors or shields of shielded conductors
through the measuring current transformer! Commercial
measuring current transformers are not suitable for
EDS460/461 or EDS490/491 systems and must not be
used.
Only if these notes are observed will you obtain a true
measurement result.
Additional information is available in our "Transformer
installation" technical information.
IRDH575 Insulation monitoring device with integrated test cur-
rent generator.
EDS... Insulation fault evaluators
FTC470XET Protocol converter for connecting the BMS (BMS =
Bender-Messgeräte-Schnittstelle or Bender measuring
device interface in English) bus with a TCP/IP (Transmis-
sion Control Protocol / Internet Protocol) network via
Ethernet.
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