Presys PROFI BUS DMY-2015-PB, Техническое руководство

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PRESYS
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Instruments DMY-2015-PB-Energy
Introduction
Page 1
1.0 - Introduction
1.1 - Description
PRESYS Digital Multi-Point Indicator DMY-2015-PB-Energy is ideal for security
applications in turbines, hydroelectric plants and thermoelectric generators. It is a
microprocessor-based instrument with up to 8 inputs for monitoring RTD sensors. It has
non-volatile internal memory (E2PROM) to store calibration values. Its accuracy is
warranted by autocalibration techniques based on a high thermal stability voltage
reference.
It is able to communicate in a Profibus-DP-V0 network.
RTD inputs are linearized automatically by tables stored in the EPROM memory.
All configuration data can be protected by password and are stored in non-volatile
memory in case of an external power failure.
Designed within the concept of modularity, the indicator supports up to 2 output
cards for alarm. The output types can be: SPDT relay, solid state relay and open
collector voltage. In case of sensor break, the trip alarms are not triggered (configurable
for both relays). In addition to the high and low alarms, you can set the indicator for
failure alarms (Watchdog) triggered by detecting the sensor breaks connected to the
inputs.
Fig.1 - DMY-2015-PB-Energy Indicator front panel
It allows the use of a universal power supply from 75 to 264 Vac 50/60Hz or 100
to 360 Vdc (any polarity).
The instrument has an extruded aluminum case which makes it highly immune to
electrical noise, electromagnetic interference and resistant to the most severe conditions
of industrial usage.
The front panel has a high visibility display configurable up to 4 digits which can
show the process variable of each channel or a set of selected channels in the scan
mode. During configuration, the display shows mnemonics and parameter values. The
presys