Product Description; Function - Pepperl+Fuchs KFD2-SH-Ex1 Original Instructions Manual

Functional Safety KFD2-SH-Ex1(.T)(.OP), KHA6-SH-Ex1

Product Description

2 Product Description
2.1

Function

General
The devices are safety components according to the machinery directive
2006/42/EC.
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals (SN/S1N proximity sensors or approved dry
contacts) from a hazardous area to a safe area.
Unlike an SN/S1N series proximity sensor, a mechanical contact requires a
10 k resistor to be placed across the contact in addition to a 1.5 k resistor in
series.
Lead breakage (LB) and short circuit (SC) conditions of the control circuit are
continuously monitored.
During an fault condition, the fault indication output energizes and outputs I and II
de-energize.
For safety applications up to SIL 3, output I must be used. For safety applications
up to SIL 2, output I and output II can be used.
The device is designed for mounting on a 35 mm DIN mounting rail according to
EN 60715.
KFD2-SH-Ex1, KHA6-SH-Ex1
The input controls 1 relay contact output with 3 NO contacts (1 output is in series
to the both output relays for the safety function), 1 relay contact output with
1 NO contact, and 1 passive transistor output (fault indication output).
KFD2-SH-Ex1.T
The input controls 1 active voltage output and 1 relay contact output with a
NO contact.
KFD2-SH-Ex1.T.OP
The input controls 1 active voltage output and 1 relay contact output with a
NO contact.
The device can only be supplied by Power Rail.
7