Weidmuller Transclinic 14i+, Руководство пользователя

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57
Connectors X5, X7
Stranded wire cross section (with ferrule) 0.2 – 2.5 mm
2
Stranded wire cross section (without ferrule) 0.2 – 4 mm
2
Stranded wire stripping length 7 mm
Torque range 0.4 – 0.5 Nm
Required tool torque wrench with
0.6 × 3.5 mm flat-blade
External insulation required simple
The RS–485 ports of this equipment are floating with regards to the rest of the circuit.
This is accomplished by means of dedicated DC/DC converters and optocouplers which
provide a double insulation barrier between the communications ports and the PV-side
terminals. From the user perspective this means reliable communications, no ground
loops and full safety even under severe surges.
This equipment has two internally-paralleled RS–485 ports (connectors X5 and X7).
The pins of these connectors are marked D+, D- and C.
CAUTION
There are two RS–485 connectors in order to simplify the installation of
more than one Transclinic inside a combiner box, not in order to daisy
chain the RS-485 field cables at X5 and X7. The daisy chaining of the
RS–485 field cables shall be performed at the terminals of the RS–485
surge protective device. Failure to observe this requirement is likely to
permanently destroy the RS–485 transceiver IC of this equipment and the
damage will not be covered by Weidmüller’s warranty.
In the table below you’ll find a correspondence between alternate names for RS–485
pins. The reason for choosing D+/D– over B/A or D1/D0 in this equipment is to avoid
confusion with certain third party products on the market with erroneously swapped
B/A and D1/D0 pins. The names D+/D– cannot lead to confusion.