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T10FS
5.5 Supply voltage
The transducer has to be operated with a separated extra low voltage
(18...30 V DC supply voltage) which usually feeds one or several consumers in
a test bench.
If the device is to be used in a DC voltage network
to be taken to ensure that over−voltages are discharged.
The notes in this chapter refer to standalone operation of the T10F without
HBM system solutions.
The supply voltage is galvanically isolated from signal outputs and calibration
signal inputs. Connect an extra−low safe voltage of 18 V...30 V to pin 3 (+) and
pin 2 ( ) of connector 1 or connector 3. We recommend that you use HBM
cable KAB 8/00−2/2/2 and the appropriate connector jacks, since when
operated at nominal voltage (24 V) the cable can be up to 50 m long, or 20 m
long if within the nominal voltage range (see Accessories, page 63) . If the
permitted cable length is exceeded, you may supply the required voltage over
two cables connected in parallel (connectors 1 and 3). This enables you to
double the permitted 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 connection plug on the cable, and the stator
should be earthed.
CAUTION
At the instant of switching 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 over a wide area (e.g. over several test benches) which possibly
also supplies consumers with high nominal (rated) currents.
A0785 14.0 en
1)
, additional measures have
39
HBM
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