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SOLID STATE RELAYS are used to produce reliable signal and to avoid expensive relay replacement.

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Presentation on theme: "SOLID STATE RELAYS are used to produce reliable signal and to avoid expensive relay replacement."— Presentation transcript:

1 SOLID STATE RELAYS are used to produce reliable signal and to avoid expensive relay replacement

2 Overview  Founded 1975  Pulse Transformer Solid state relays based on own development since end of 70´s  Own development and assembly in Nummela, near Helsinki  Effective use of local sub-suppliers  Sales through professional distributors  Market leader in Finland and Sweden  Exports to several European and North-American countries  We (Weidmuller North America) are the exclusive Master distributor for Delcon

3 Signal conditioning CONTROL 24 VDC - DCS - PLC - PC FIELD 230/400 VAC 24...220 VDC - inputs ( limit switches) - outputs ( contactors) 4 kV UNIT RELIABILITY Electrical durability Mechanical durability SIGNAL RELIABILITY Ability to transer signal correctly also in disturbed environment ALTERNATIVES PLC I/O-cassette (relay, opto, transistor) Electromechanical relay Opto coupler Delcon relay SELECTION IS MADE BASED ON THE NEED OF: AND

4 Typical problems with signal transfer Malfunctions due to -capacitive leakage -transient and over-voltages -Big frequency converters Short life time due to –high DC voltages –inductive loads –high switching frequency

5 Typical reasons: Long signal cables (> 100 m) Parallel signal & load cables Problems: Relays stay on… Relays work on their own… LED is glowing – relay is off... Capacitive leakage

6 Typical reasons: Switching on/off machines Other outside disturbances....frequency converters Problems: PLC-card breaks… Relays work on their own… Malfunctions in system… Transients and other disturbances

7 Basic reason:  too high switching frequency > ones in a minute  inductive AC or DC load from a coil  breaking > 30 VDC Problem: Relays must be changed frequently… Relays don´t work… Slow function… Number of cycles and frequency and difficult loads

8 Solution

9 Solid state relay for demanding conditions Pulse Transformer (not OPTO!!!) Excellent immunity to interference Long lifetime > 15 years Switches also highly inductive loads Galvanic isolation 4000 V Made in Finland Solid state relays and I/O-modules Delcon supplies the industry with

10  SL-series for DIN-rail mounting -AC in- and output relays for static and motor loads -DC in- and output relays for normal and inductive loads  GL-series for direct mounting on PC.board with G4 dimensions -AC in-and output relays for static loads -DC in- and output relays for normal loads  Mountig bases and sockets -PCB-socket for SL-series -DIN-rail socket for one relay -DIN-rail mountigbase for several relays (8 & 16)  Profibus and CANopen slave for Delcon relays  PLC adapters and cables Main products

11 Assembly Control level Signal level Field level Parallel wiring Unshielded cables 24, 48, 110, 230 VAC or VDC Parallel wiring 24 VDC

12 Mounting base + 16 relays PLC adapter + flat cable 24 VDC, 15 mA Unshielded cable 24, 48, 110, 230 VAC tai VDC 0…10 A Assembly Compact wiring Control level Signal level Field level 25 … 50 m

13 Assembly Distributed I/O Control level Signal level Field level PB slave + 16/32 modules CANopen

14 Basic applications, AC Input 230 VAC Output 0 - 50 mA Output voltage 0 – 60 VDC Difficult environment Cables several km long Parallel load and signal High capasitive disturbanses Normal sensors CE and UL Input 24 VDC Output 0 - 3A, 90A 20ms Output voltage 0 - 240VAC Leakage < 0,05 mA Difficult environment Frequency 5 Hz SLO..IRA 1000Hz SLO 24 TRA for reverse motorloads CE and UL Input 230 VAC Output 0 – 50 mA Output voltage 0 – 60 VDC Long cables (< 500 m) For 2-wire technology Moderate capasitive disturbanses For 2-wire sensors Max leakage current 3,5 mA CE and UL SLI 230CR (25/49/120/380) SLO 24TR (5/12) SLI 230CRP (120)

15 Basic products, DC Input relay for long cables and disturbed environment Input 24 VDC Output voltage 0 - 60 VDC Output 50 mA Switching 1000 Hz SLI 24CRF10 000 Hz CE and UL Output relay for normal voltages and small inductive loads, max. 5 ms Input 24 VDC Output voltage 0…60 V Output SLO 24CR 3 A SLO 24CRX 10 A Switching 1000 Hz CE and UL Output relay for high voltages or/and highly inductive loads Input 24 VDC Output voltage 0 – 250 VDC Induktive loads with max. voltage and 24V DC load: CRA = 1,8 A, 100 ms CRA4 = 4,0 A, 50 ms CE and UL SLI 24CR (12/48/125/250) SLO 24 CR SLO 24CRX (5/12/48) SLO 24CRA SLO 24CRA4 (5/12/48/120/220)

16 Customer choose Delcon because:  Technical problems can not be solved with normal relays or opto couplers -long signal cables -highly inductive load -high DC voltages -High transients -fast AC switching -high connecting frequency  Normal relay solution is not reliable enough -difficult environment and/or load -large system need special reliability -risk to non working contacts (oxidising)  Delcon offers 100% safe signal transfer and status indication!

17 Price (€) Time Lifetime Cost of Delcon Relay = Relay Price Delcon Cost of 1 relay Other relay Cost of 2 relays + 1 replacement Cost of 3 relays + 2 replacements Cost of Lost Production Cost of 4 relays + 3 replacements COSTCOST Lifetime Cost of Other Relay ≥ Relay Price

18 Typical Customers THE SWITCH THE OPTIMAL INTERFACE RELAY IN DIFFICULT ENVIRONMENTS

19 Questions...


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