EMD-SL-LL-230 Electronic monitoring relay for level monitoring of conductive liquids INTERFACE Data sheet 103073_en_04 1 (c) PHOENIX CONTACT - 09/2009 Description Increasingly higher demands are being placed on safety and system availability - across all sectors. Processes are becoming more and more complex, not only in mechanical engineering and the chemical industry, but also in plant and automation technology. Demands on power engineering are also increasing constantly. Features - - - - - - Error-free and therefore cost-effective operation can only be achieved through continuous monitoring of important network - and system parameters. Electronic monitoring relays in the EMD series are available for a wide range of monitoring tasks to avoid the consequences of errors or to keep them within limits. Filling level monitoring Pump up (minimum monitoring) Pump down (maximum monitoring) Adjustable switch-on delay Adjustable release delay 230 V AC supply voltage Two PDTs The operating states are indicated using colored LEDs, errors that may occur can be sent to a control system via a floating contact or can shut down a part of the system. Some device versions are equipped with startup and response delays in order to briefly tolerate measured values outside the set monitoring range. WARNING: Risk of electric shock Never carry out work when voltage is present. Make sure you always use the the latest documentation. It can be downloaded at www.phoenixcontact.net/download. EMD-SL-LL-230 2 Ordering data Description Type Order No. Pcs. / Pkt. Electronic monitoring relay for level monitoring of conductive liquids EMD-SL-LL-230 2885906 1 3 Technical data Input data Input name Measuring input Description of the input Conductive probe, type: SK1, SK2, SK3 Function Pumping up (minimum monitoring), pumping down (maximum monitoring) Recovery time 500 ms Max. probe voltage 16 V AC Max. probe current 7 mA Length of probe cable < 1000 m Set value < 50% (Capacity 100 nF/km) < 100 m Set value 100% (Capacity 100 nF/km) Switching Threshold 0.25 k ... 100 k (4 mS ... 1 S) Output data Contact type 2 floating PDT contacts Nominal insulation voltage 250 V AC (in acc. with IEC 60664-1) Interrupting rating (ohmic load) max. 750 VA (3 A/250 V AC, module aligned, 5 mm spacing) 1250 VA (5 A/250 V AC, module not aligned, 5 mm spacing) Output fuse 5 A (fast-blow) Supply Supply voltage 230 V AC -15 % ... +15% AC Range of supply voltages Frequency range 48 Hz ... 63 kHz Nominal power consumption 2 VA (1.5 W) General data Mains type 1-phase Service life mechanical Approx. 2 x 107 cycles Service life, electrical 2 x 105 cycles at ohmic load, 1000 VA Switching frequency max. 60 (per minute at 100 VA ohmic load) max. 6 (per minute at 1000 VA ohmic load) Operating mode 100% operating factor Degree of protection IP40 (housing) / IP20 (connection terminal blocks) Pollution degree 2 (according to EN 50178) Surge voltage category III, basic insulation (as per EN 50178) Rated insulation voltage 300 V (According to EN 50178) Assembly on TS 35 profile rail acc. to EN 60715 Mounting position Any Width 22.5 mm Height 113 mm Length 90 mm 103073_en_04 PHOENIX CONTACT 2 EMD-SL-LL-230 General data (Continued) Type of housing Polyamide PA, self-extinguishing Color green Weight 160 g Connection data Conductor cross section, solid 0.5 mm ... 2.5 mm Conductor cross section, stranded 0.25 mm ... 2.5 mm Stripping length 8 mm Type of connection Screw connection Tightening torque 1 Nm Ambient conditions Ambient temperature (operation) -25 C ... 55 C -25 C ... 40 C (corresponds to UL 508) Ambient temperature (storage/transport) -25 C ... 70 C Permissible humidity (operation) 15 % ... 85 % Climatic class 3K3 (in acc. with EN 60721) Conformance / approvals Conformity CE compliant UL, USA / Canada UL/C-UL listed UL 508 Conformance with EMC directive 2004/108/EC Immunity to interference according to EN 61000-6-2 Emitted interference according to EN 61000-6-3 Conformance with LV directive 2006/95/EC Electronic equipm. for electrical power installations according to 4 EN 50178 Block diagram 16 18 26 28 E1 E2 E3 15 25 A1 A2 U = 230 V AC 5 Safety notes WARNING: Risk of electric shock Never carry out work when voltage is present. 103073_en_04 PHOENIX CONTACT 3 EMD-SL-LL-230 6 Structure 1 2 3 4 5 6 7 A1 E1 15 E2 25 E3 U 1 "U" LED: Supply voltage "REL" LED: Output relay "FUNCTION" rotary switch: Function selection "SENSITIVITY" potentiometer: Sensitivity control "DELAY OFF" potentiometer: Release delay "DELAY ON" potentiometer: Switch-on delay Universal snap-on foot for EN DIN rails Level monitor 0,5 De 1 onlay 0s 0,5 De 10 offlay s ns 10 itiv REL y 2 7 5 Se 0k up do wn PU MP 26 16 18 28 A2 EMD-SL-LL-230 0,2 4 5 6 3 7 Installation WARNING: Risk of electric shock Never carry out work when voltage is present. The module can be snapped onto all 35 mm DIN rails according to EN 60715. 8 Diagnostics The LEDs indicate the following error states: "U" LED (Green) - LED ON: Supply voltage present "REL" LED (Yellow) - - LED ON: Output relay has picked up LED OFF: Output relay has dropped out 103073_en_04 PHOENIX CONTACT 4 EMD-SL-LL-230 9 Connection example L1 N A1 E1 15 E2 15 25 E3 E1 25 E2 16 18 16 10 26 28 26 28 18 A2 E3 Function The "FUNCTION" rotary switch is used to set the desired function: - PUMP UP = Pump up or minimum monitoring - PUMP DOWN = Pump down or maximum monitoring Setting the Monitoring Relay Prior to Startup - - - - - 103073_en_04 Set the time delays ("DELAY ON" and "DELAY OFF" potentiometers) to 0.5 s, minimum. Set the rotary switch to the "PUMP DOWN" function. With probes submersed slowly turn the "SENSITIVITY" potentiometer clockwise from 0.25 k towards 100 k until the relay switches. Remove the probes from the liquid and check whether output relay "R" drops out. If the relay does not drop out when the probes are removed, slowly turn the "SENSITIVITY" potentiometer back counter-clockwise. Set the desired function ("PUMP UP" or "PUMP DOWN") and set the time delays to the desired values. PHOENIX CONTACT 5 EMD-SL-LL-230 Pump Up (PUMP UP) U LED REL,R E1 E2 E3 DELAY ON DELAY OFF <DELAY Connection of probe rods E1, E2, and E3. Instead of weight probe E3, the electrically conductive container can be connected as an alternative. If the liquid level falls below minimum probe E2, the switch-on delay (DELAY ON) starts. After the delay time has elapsed, output relay "R" picks up again (yellow "REL" LED is ON). If the liquid level rises above maximum probe E1, the release delay (DELAY OFF) starts. After the delay time has elapsed, output relay "R" drops out again (yellow "REL" LED is OFF). Minimum Monitoring (PUMP UP) U LED REL,R E2 E3 DELAY ON DELAY OFF <DELAY Connection of probe rods E2 and E3 (bridge E1-E3). Instead of weight probe E3, the electrically conductive container can be connected as an alternative. If the liquid level falls below probe E2, the switch-on delay (DELAY ON) starts. After the delay time has elapsed, output relay "R" picks up again (yellow "REL" LED is ON). If the liquid level rises above probe E2, the release delay (DELAY OFF) starts. After the delay time has elapsed, output relay "R" drops out again (yellow "REL" LED is OFF). Pump Down (PUMP DOWN) U LED REL,R E1 E2 E3 DELAY ON DELAY OFF <DELAY Connection of probe rods E1, E2, and E3. Probe rod E3 does not have to be connected if the container wall is made of metal. If the liquid level rises above maximum probe E1, the switchon delay (DELAY ON) starts. After the delay time has elapsed, output relay "R" picks up again (yellow "REL" LED is ON). If the liquid level falls below minimum probe E2, the release delay (DELAY OFF) starts. After the delay time has elapsed, output relay "R" drops out again (yellow "REL" LED is OFF). Maximum Monitoring (PUMP DOWN) U LED REL,R E2 E3 DELAY ON 103073_en_04 DELAY OFF <DELAY Connection of probe rods E2 and E3 (bridge E1-E3). Instead of weight probe E3, the electrically conductive container can be connected as an alternative. If the liquid level rises above probe E2, the switch-on delay (DELAY ON) starts. After the delay time has elapsed, output relay "R" picks up again (yellow "REL" LED is ON). If the liquid level falls below probe E2, the release delay (DELAY OFF) starts. After the delay time has elapsed, output relay "R" drops out again (yellow "REL" LED is OFF). PHOENIX CONTACT GmbH & Co. KG * 32823 Blomberg * Germany * Phone: +49-(0) 5235-3-00 PHOENIX CONTACT * P.O.Box 4100 * Harrisburg * PA 17111-0100 * USA * Phone: +717-944-1300 www.phoenixcontact.com 6