Supply Voltage - HBM T10FM Mounting Instructions

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5.4 Supply voltage

The transducer must be operated with a separated extra‐low voltage (18...30
V DC supply voltage), which usually supplies one or more consumers within a
test bench.
Should the equipment be operated on a DC voltage network
precautions must be taken to discharge excess voltages.
The notes in this chapter relate to the standalone operation of the T10FM
without HBM system solutions.
The supply voltage is electrically isolated from signal outputs and calibration
signal‐inputs. Connect a separated extra‐low voltage of 18 V...30 V to pin 3
(+) and pin 2 ( ) of connectors 1 or 3. We recommend that you use HBM
cable KAB 8/00-2/2/2 and the relevant Binder sockets, that at nominal (rated)
voltage (24 V) can be up to 50 m long and in the nominal voltage range, 20 m
long (see Accessories, page 45).
If the permissible cable length is exceeded, you can feed the supply voltage in
parallel over two connection cables (connectors 1 and 3). This enables you to
double the permissible length. Alternatively an on‐site power pack should be
installed.
If you feed the supply voltage through an unshielded cable, the cable must be
twisted (interference suppression). We also recommend that a ferrite element
should be located close to the connector plug on the cable, and that the stator
should be grounded.
IMPORTANT
The instant you switch on, a current of up to 2 A may flow and this may
switch off power packs with electronic current limiters.
1)
Distribution system for electrical energy with greater physical expansion (over several test benches, for
example) that may possibly also supply consumers with high nominal (rated) currents.
HBM
T10FM
1)
, additional
A0894-5.2 en