Mounting And Installation; Mounting Instructions For Hd2* Modules; Zone 2 And Div. 2 - Pepperl+Fuchs HD2 Series Manual

Compact Fieldbus Power Hub,Generic Interface
Safety
The compact Power Hub may be installed in Zone 2 or Class I, Division 2 hazardous areas.
Types of protection are Ex nA (non-sparking) for Zone 2, gas groups IIC, IIB, IIA, and non-
incendive for use in Class I, Division 2, gas groups A, B, C, and D.
Dedicated power supply modules limit the output voltage safely according to IEC 60079-11. In
combination with Pepperl+Fuchs Segment Protectors, the outputs are specified Ex ic. Thus,
live maintenance at the field device level is permitted.
For further information about hazardous area installation refer to referenced documents see
chapter 5.3.
The device is only approved for appropriate and intended use. Ignoring these instructions will
void any warranty and absolve the manufacturer from any liability.
The device must only be operated in the ambient temperature range and at the relative
humidity (non-condensing) specified.
1.8

Mounting and Installation

Prior to mounting, installation, and commissioning of the device you should make yourself
familiar with the device and carefully read the instruction manual.
Trunk and spur connectors are only allowed to be manipulated at ambient temperatures
between -5 °C and +70 °C.
The device may be installed in a corrosive location acc. to ISA-S71.04-1985, severity level G3.
1.8.1

Mounting Instructions for HD2* Modules

The modules are intended for mounting on an appropriate fieldbus Power Hub motherboard.
The Power Hub motherboard features a special connection slot for HD2-DM-* diagnostic
modules labeled "Diagnostic Module only". Do not try to plug any other modules into this
connection slot. Other modules may be damaged.
Instruction for Redundant Systems
Each segment on a redundant motherboard must only be fitted with 2 power modules of the
same type.
1.8.2

Zone 2 and Div. 2

Connection or disconnection of energized non-intrinsically safe circuits is only permitted in the
absence of a hazardous atmosphere.
It is necessary to pay particular attention to the type of fieldbus power supply selected for use
on the Power Hub. This determines the type of Zone 2/Div. 2 installations and certified field
instruments that can be connected in Zone 2 or Div. 2 area.
Take special care when using power supply modules with Pepperl+Fuchs Segment Protectors
for intrinsically safe Ex ic and non-incendive field wiring. 
Double-check to ensure that the correct type of power supply module is used in relation to its
output values. For example, the output voltage must be equal or less than the maximum voltage
of the connected field devices.
Requirements for all used fieldbus products in Zone 2 installations are summarized in the
manual: "Using Pepperl+Fuchs fieldbus equipment in Zone 2 hazardous area environment".
You will find this document on the product page of the device at www.pepperl-fuchs.com.
The device must be installed and operated only in surrounding enclosures that
comply with the requirements for surrounding enclosures according to IEC/EN 60079-0,
■
are rated with the degree of protection IP54 according to IEC/EN 60529.
■
Prevent any electrostatic charge that could result in electrostatic discharge while installing or
operating the device.
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