2901137

EMD-SL-LL-110 Electronic monitoring relay for level monitoring of conductive liquids INTERFACE Data sheet 104375_en_00 1 © PHOENIX CONTACT 2010-07-13 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 Supply voltage 110 V AC 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 latest documentation. It can be downloaded at www.phoenixcontact.net/catalog. EMD-SL-LL-110 2 Ordering data Description Type Order No. Pcs. / Pkt. Electronic monitoring relay for level monitoring of conductive liquids EMD-SL-LL-110 2901137 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 kΩ ... 100 kΩ (4 mS ... 1 μS) Output data Contact type 2 floating PDT contacts Only apply the supply voltage for PDT 2. 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 110 V AC -10 % ... +15% AC 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 104375_en_00 PHOENIX CONTACT 2 EMD-SL-LL-110 General data Type of housing Polyamide PA, self-extinguishing Color green Weight 160 g Connection data Conductor cross section, solid 0.5 mm² ... 2.5 mm² Conductor cross section, stranded 0.25 mm² ... 2.5 mm² 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 = 110 V AC 5 Safety notes WARNING: Risk of electric shock Never carry out work when voltage is present. 104375_en_00 PHOENIX CONTACT 3 EMD-SL-LL-110 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 Ω up do wn PU MP 26 16 18 28 A2 EMD-SL-LL-110 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 104375_en_00 PHOENIX CONTACT 4 EMD-SL-LL-110 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 EMD-SL-LL-110 – – – – – 104375_en_00 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 kΩ towards 100 kΩ 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-110 Pump Up (PUMP UP) U LED REL,R E1 E2 E3 DELAY ON DELAY OFF