2700356

PSR-PS20 SIL coupling relay Data sheet 106252_en_02 1 © PHOENIX CONTACT 2015-07-14 Description Intended Use Features The PSR-PS20 SIL coupling relay can be used for power adaptation and electrical isolation in high and low-demand applications up to SIL 3 according to IEC 61508 as well as EN 61511. – – – – Using this module, circuits are interrupted in a safety-oriented manner. The safety relay is equipped with an enabling current path and a confirmation current path that drop out without delay according to stop category 0 in accordance with EN 60204-1. By filtering the controller test pulses, premature failure of the safety relays is prevented. If an error occurs inside the module, the internal device input impedance is affected. As such with compatible, safe systems, the test pulses sent from the controller may be disrupted and the error can be reported back to the corresponding digital output without any additional wiring effort. – – – – – – – – SIL 3 coupling relay for safety-related switching off Can be used in high and low-demand applications Approved for Class I, Zone 2 applications Easy proof test:    - Active error acknowledgment via A1    - Visually on the device    - Evaluation of the force-guided N/C contact Integrated DCS test pulse filter Low inrush current 1 undelayed enabling current path 1 undelayed confirmation current path 1 digital signal output Fixed screw connection 6.8 mm housing width Controller-specific Termination Carrier available 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. PSR-PS20 2 Table of contents 1 Description .............................................................................................................................. 1 2 Table of contents ..................................................................................................................... 2 3 Ordering data .......................................................................................................................... 3 4 Technical data ......................................................................................................................... 3 5 Safety notes............................................................................................................................. 6 5.1 Installation in the Ex area (class I, zone 2) .................................................................................. 7 5.2 Installation in areas with a danger of dust explosions .................................................................... 7 6 Basic circuit diagram ............................................................................................................... 8 7 Derating................................................................................................................................... 8 7.1 Vertical mounting position ...................................................................................................... 8 7.2 Horizontal mounting position .................................................................................................. 8 7.3 Mounting position with module front at the top ............................................................................. 9 8 Load curve............................................................................................................................... 9 8.1 Ohmic load ........................................................................................................................ 9 9 Operating and indication elements ........................................................................................ 10 9.1 Connection versions ........................................................................................................... 10 9.2 Connection assignment ....................................................................................................... 10 10 Mounting and connection ...................................................................................................... 11 11 Startup................................................................................................................................... 11 12 Proof test ............................................................................................................................... 11 13 Calculating the power dissipation .......................................................................................... 12 14 Application examples ............................................................................................................ 13 14.1 Application example 1 - SIL 3................................................................................................ 13 15 Revision history ..................................................................................................................... 14 106252_en_02 PHOENIX CONTACT 2 PSR-PS20 3 Ordering data Description Type Order No. Pcs. / Pkt. Coupling relay for SIL 3 high and low-demand applications, couples digital output signals to the I/O, 1 enabling current path, 1 confirmation current path, 1 digital signal output, safe state off applications, test pulse filter, fixed screw terminal block PSR-PS20-1NO-1NC-24DC-SC 2700356 1 4 Technical data Hardware/firmware version HW/FW ≥ 00/-- (The technical data and safety characteristics are valid as of the specified HW/FW version.) Input data Rated control supply voltage US 24 V DC -15 % / +10 % Rated control supply current IS typ. 45 mA Supply voltage 24 V DC -15 % / +10 % (Diagnostic supply voltage UD) Input current 6 mA (at 21-A2 for UD; depending on load + 100 mA at M1 and 22) Typical inrush current 400 mA (t