Datasheet

ManualsBrandsPHOENIX CONTACT ManualsPhotoelectric Sensors2904665

1Description

SIL3 coupling relay for safety-related switch on

PSR-PC50

Data sheet

The PSR-PC50 SIL coupling relay can be used for power

adaptation and electrical isolation in Safe-State-ON applica-

tions up to SIL3 according to IEC61508 as well as

IEC61511.

By filtering the controller test pulses, premature failure of the

safety relays is prevented.

The contact side is fully monitored for open circuit and short

circuit as well as load and diagnostics supply voltage.

If an error occurs, the internal device input impedance is af-

fected. As such, the test pulses sent from the controller are

disrupted and the error is reported to the corresponding dig-

ital output without additional wiring effort.

Features

–SIL3 coupling relays for safety-related switch on

– Applications: Energized-to-Safe

– Complete monitoring of the load side for:

- Open circuit

- Short circuit

- Presence of supply voltage for diagnostics and loads

– Error message output through interrupting test pulses of

the higher-level controller

– Easy proof test

– Integrated DCS test pulse filter

– Low inrush current

– One undelayed enabling channel

– Optional plug-in screw or spring-cage terminal blocks

– Special design for avoiding spurious trips

– Housing width 17.5 mm

– Compatible with EMERSON DeltaV SIS SLS1508 and

CSLS (further controller cards on request)

WARNING: Risk of electric shock

Observe the safety instructions in the corresponding section!

Make sure you always use the latest documentation.

It can be downloaded from the product at phoenixcontact.net/products.

This data sheet is valid for all products listed on the following pages.

105818_en_01

2014-08-18

Summary of content (11 pages)

PAGE 1
PSR-PC50 SIL 3 coupling relay for safety-related switch on Data sheet 105818_en_01 1 © PHOENIX CONTACT 2014-08-18 Description The PSR-PC50 SIL coupling relay can be used for power adaptation and electrical isolation in Safe-State-ON applications up to SIL 3 according to IEC 61508 as well as IEC 61511. By filtering the controller test pulses, premature failure of the safety relays is prevented.
PAGE 2
PSR-PC50 2 Table of contents 1 Description .............................................................................................................................. 1 2 Table of contents ..................................................................................................................... 2 3 Ordering data .......................................................................................................................... 3 4 Technical data ................................
PAGE 3
PSR-PC50 3 Ordering data Description Type Order No. Pcs. / Pkt. Coupling relay for SIL 3 low demand applications, couples digital output signals to the periphery, 1 enabling current path, module for F&G applications, test pulse filter, plug-in screw connection, 17.
PAGE 4
PSR-PC50 4 Technical data Input data Nominal input voltage UN 24 V DC -15 %; +10 % (A1/A2 and 24V/A2) Input voltage range (factor) 0.85 ... 1.1 Typical input current 65 mA (A1/A2) 15 mA (24V/A2; depending on load M1 +100 mA) Typical inrush current ≤ 200 mA (A1/A2) 2.5 A (24V/A2; for 10 s) 200 mA (Inputs TP1, TP2 and TP3) Current consumption typ. 20 mA (Input TP1) typ. 18 mA (Input TP2) typ. 35 mA (Input TP3) Input filter time < 2 ms (Test pulse duration) ≥ 100 ms (Test pulse rate) Max.
PAGE 5
PSR-PC50 General data Rated surge voltage / insulation 6 kV/safe isolation (through protective impedance) Pollution degree 2 Surge voltage category III Dimensions Screw connection Spring-cage connection WxHxD 17.5 x 112.2 x 114.5 mm 17.5 x 117.4 x 114.5 mm Connection data Screw connection Spring-cage connection Conductor cross section, solid 0.2 mm² ... 2.5 mm² 0.2 mm² ... 1.5 mm² Conductor cross section, stranded 0.2 mm² ... 2.5 mm² 0.2 mm² ... 1.
PAGE 6
PSR-PC50 5 Safety notes WARNING: Risk of electric shock During operation, parts of electrical switching devices carry hazardous voltages. Before working on the switching device, disconnect the power. Please observe the safety regulations of electrical engineering and industrial safety and liability associations! Disregarding these safety regulations may result in death, serious personal injury or damage to equipment.
PAGE 7
PSR-PC50 6 Basic circuit diagram A1 A1' M1 24V Derating 7.
PAGE 8
PSR-PC50 9 Operating and indication elements 9.1 Connection versions 1 1.1 1.2 2 1.3 1.1 2.1 2.2 2.3 1.2 1.3 2.1 3.2 3.1 2.2 2.3 3.3 3.1 3.2 3.3 3 PSR-...-SP PSR-...-SC 7 mm Figure 5 9.
PAGE 9
PSR-PC50 10 Startup 11 Once the nominal input voltage of 24 V DC has been enabled at terminals A1 and A2 (as well as A1' and A2' for optionally redundant wiring), the Power LED lights up. Proof test The Proof test checks the individual relay channels and device diagnostics to ensure proper functioning. The contacts L, L', LO, LO' as well as NI, NI' and N, N' close.
PAGE 10
PSR-PC50 12 Application examples Key: SIS DC DI DO = Safety Instrumented System (safe control) = Diagnostic Coverage according to IEC 61508 (line/load diagnostics at DO) = Digital input = Digital output Connection options: SIS with line/load diagnostics 24V DC DO Load supply voltage Supply voltage for line/load diagnostics DI L+(L1) Option for redundant connection Option for redundant connection Signal output A1 A1' M1 24V L N L´ N´ PSR-PC50 A2 A2' 0V Option for redundant connection
PAGE 11
PSR-PC50 12.1 Application example 1 - SIL 3 Assumptions, information, and marginal conditions – – – – The DC of the digital output is 90%. Diagnostics of PSR-PC50 are active. The test pulses of the controller are activated and evaluated. A potential error is indicated accordingly. A fault e.g., open circuit or short circuit of the load is reported by detuning the test pulse of the safe controller.