Bender LANTRAXX CMS460-D, Manual

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Safety instructions
14 CMS460-D_D00045_01_M_XXEN/07.2016
2.3 Intended use
The CMS460-D load current evaluator is designed for the localisation of load
currents up to 125 A in TT, TN and IT systems, AC 42…2000 Hz (measuring
range see "chapter 8.1 Technical data", paragraph "Measuring circuit").
The CMS system consists of one or several CMS460-D load current evaluators
which are able to detect and evaluate load currents in earthed and unearthed
power supplies via the associated measuring current transformers. The maxi-
mum voltage of the system to be monitored depends either on the nominal
insulation voltage of the measuring current transformer on busbar systems, or
the cables or conductors that are routed through.
For alternating and pulsating currents W
…
(closed), WR
…
(rectangular), WS
…
(split-core) and WF… (flexible) are used. Any combination of the various meas-
uring current transformer series can be connected to the evaluator measuring
channels. Each CMS460-D utilises 12 measuring channels. Up to 90 residual
current monitors can be connected via a BMS bus (RS-485 interface with BMS
protocol), thereby up to 1080 measuring channels (sub-circuits) can be moni-
tored.
If this product is used for personnel protection, fire or plant protection, the fre-
quency response can be set accordingly. The measured currents can be analysed
for harmonics. The THF can also be determined (THF =
T otal H armonic F actor).
In order to meet the requirements of the applicable standards, customised pa-
rameter settings must be made on the equipment in order to adapt it to local
equipment and operating conditions. Please heed the limits of the range of
application indicated in the technical data.
Any use other than that described in this manual is regarded as improper.