Intrinsic Safety Earth; Network Connection; Connection To Pc - SPM intellinova compact INS06 Ex Assembly, Installation And Operation Instructions

Intrinsic Safety Earth

From the standpoint of intrinsic safety Ex i, insulation must be
made between the equipotential IS-earth bonding conductors
and the PE conductors in the installation. The IS-earth bonding
conductor is regarded as a passive conducting element that fulfils
the required separation conditions with a 500 V insulation test.
The PE conductor, however, is at a certain potential in the event
of a fault, and is regarded as an active, non-intrinsically safe ele-
ment. To fulfil requirement in the ATEX and UKEX directives, the
IS-earth and the PE should be separated.
The minimum cross section of the associated IS-earth protection
conductor is 4 mm².

Network Connection

The System Unit is connected via an RJ45 connector to standard
Ethernet in a LAN network. A shielded network cable should be
used. Consult the responsible network technician prior to con-
nec ting Intellinova Compact Ex units to the PC network.
®
As an option, the Intellinova
with a network switch to distribute Ethernet to several Intellinova
Compact Ex units.
• Open the M16 cable gland (D) and guide the cable
through the inlet.
• Mount an RJ45 connector plug on the cable.
• Connect the plug to the RJ45 connector on the circuit
board (pos. 2 in the figure on page 6). If an Ethernet switch
(option) is included, connect the LAN network to the switch
(pos. 14 on page 6).
• Tighten the inlet sealing nut with an open-ended 19 mm
spanner, see "Cable gland torque moment" on page 7.

Connection to PC

A PC can be connected to the System Unit via the RJ45 connector
by using a shielded cross-over cable. For communication and set
up the software FSS (Field Service Software) must be installed
and running on the PC.
Electrical Installation
Compact Ex units can be equipped
®
IS-earth terminals
Resistance meter or band
integrity monitor connection
during Earth continuity test
Earthing an installation with two conductors
and providing resistance test facilities
®
D D
– 9 –
PE earth
on cabinet
Loop
resistance
<2Ω