Samson S2000 Instruções de Operação descarregar pdf (Página 49)

In particular, the radial thickness of the con

-

ductor insulation for common insulation ma

-

terials, such as polyethylene, must have a

minimum radial thickness of 0.2 mm.

The diameter of an individual wire in a

fine-stranded conductor must not be smaller

than 0.1 mm. Protect the conductor ends

against splicing, e.g. by using wire-end fer

-

rules.

When two separate cables are used for con

-

nection, an additional cable gland can be

installed.

Seal cable entries left unused with plugs.

Devices used at ambient temperatures be

-

low –20 °C must be fitted with metal cable

glands.

Equipment for use in zone 2/zone 22

In equipment operated with type of protec-

tion Ex nA II (non-sparking equipment) ac-

cording to EN 60079-15: 2003, circuits

may be connected, interrupted or switched

while energized only during installation,

maintenance or repair.

Equipment connected to energy-limited cir

-

cuits with type of protection Ex nL (en

-

ergy-limited equipment) according to

EN 60079-15: 2003 may be switched un

-

der normal operating conditions.

The maximum permissible values specified

in the Statement of Conformity or its ad

-

denda apply when interconnecting the

equipment with energy-limited circuits in

type of protection Ex nL IIC.

Cable entries

The cable entry with M20 x 1.5 cable gland,

6 to 12 mm clamping range.

There is a second M20 x 1.5 threaded bore

in the housing that can be used for addi

-

tional connection, when required.

The screw terminals are designed for wire

cross-sections of 0.2 to 2.5 mm². Tighten by

at least 0.5 Nm.

Note: The power supply for the positioner

can be supplied either over the connection

to the fieldbus segment or over a DC voltage

source (9 to 32 V) connected to the bus ter

-

minals in the positioner.

You are required to observe the relevant

regulations for use in hazardous areas.

Accessories:

Cable gland M20 x 1.5 Order no.

Black plastic

(6 to 12 mm clamping range) 8808-1011

Blue plastic

(6 to 12 mm clamping range) 8808-1012

Nickel-plated brass

(6 to 12 mm clamping range) 1890-4875

Nickel-plated brass

(10 to 14 mm clamping range) 1922-8395

Stainless steel 1.4305

(8 to 14.5 mm clamping range) 8808-0160

EMC cable gland, nickel-plated

brass

8808-0143

Adapter M20 x 1.5 to ½ NPT

Aluminum, powder paint coated 0310-2149

Stainless steel 1400-7114

EB 8384-4 EN 49

Connections

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