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ID-E316-001GB
There are two methods of interconnecting the control panels:
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in a form of a double ring created by means of two independent pairs of wires in a screen;
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in a form of a double ring created by a pair of optical fibre cables.
In case the control panels are connected by means of wires, the first ring is created by connecting a pair
of wires to applicable output terminals A and B (OUT-1) in one control panel with applicable input
terminals A and B (IN-1) in the other control panel (terminal is connected with terminal A and terminal B
is connected with terminal B). By analogy, applicable terminals A and B (OUT-2) of one control panel
must be connected with terminals A and B (IN-2) of the other control panel in order to create the
second ring. An example of connecting four control panels by means of a double ring of wires is shown
in Fig. 10.3. In order to connect control panels, a copper twisted pair must be used (screening
attenuation not exceeding 3 dB/km). The maximum cable length between two control panels must not
exceed 1,200 m. It is recommended to use the YnTKSYekw. 1 x 2 x 0.8 mm installation cable.
The screen of each cable section should be grounded only from one side and the other end should be
connected (via 10 nF/1500 V capacitor) to the grounding system of a remote control panel (in order to
ensure better resistance to interference – see Fig. 10.3). Both rings should be created independently, i.e.
wire pairs should not be routed in the same cable in order to provide their resistance to interference
and possible cable damage.
In case control panels are connected by means of optical fibre cables, each unit should be equipped with
two optical fibre converters of the following types:
- TR-43.7.1 for 62.5/125 μm or 50/125 μm multi-mode optical fibre cables (850 nm wave) terminated
with ST® type contacts. This connection makes it possible to ensure (depending on the attenuation) the
distance between two neighbouring control panels in the ring equal to approx. 3 km.
- TR-43.7.2 for 9/125 μm single-mode optical fibre cables (1,300 nm wave) terminated with FC type
contacts. This connection makes it possible to ensure (depending on the attenuation) the distance
between two neighbouring control panels in the ring equal to approx. 12 km.
Each converter has a special latch for fast installation on a typical supporting rail (DIN EN 50022) under
the upper wall of the control panel. Converters should be supplied with + 24 V voltage which can be
routed from the MZ-48 module or MIK-48 module output terminal blocks. If the converters are supplied
from the control panel voltage and the MSI-48 Ed.3 module, the ZW7 jumper should be switched into
position 2-3. The diagram showing connections between the converters and the MSI-48 module and
further between control panels by means of optical fibre cables is presented in Fig. 10.4.
Note:
When control panels are connected by means of optical fibre cables, it is recommended to provide
power supply for the optical fibre converters from an external power adaptor (independent from the
control panel voltage) of the following parameters: output U 10 ÷ 40 V, output I min. 200 mA, insulation
strength min. 1000 V DC. If, for maintenance purposes, the control panels in which optical fibre
converters are supplied by external voltage are disconnected, the rings connecting the units are not
discontinued (for power supply provided for converters supplied with the control panel voltage, dis-
actuation of a control panel results in discontinuity of both rings connecting the control panels but one
break in the rings does not influence the continuity of transmission between control panels). It is
advisable that the power adaptor is fitted with a latch (similarly to the optical fibre converter) to install
it on the rail shared with converters.
Summary of Contents for 4000
Page 25: ...ID E342 001GB 25 Fig 5 3 MSL 1M line module overview ...
Page 96: ...96 ID E316 001GB Fig 9 16 Non potential output exemplary connection ...
Page 101: ...ID E342 001GB 101 Fig 10 2 MSI 48 and MSI 48 Ed 3 network modules ...
Page 103: ...ID E342 001GB 103 Fig 10 3 Four control panels network connection with two pairs of cables ...