Inductive Proximity Sensors E51 Limit Switch Style, Modular May 2001 E51 Modular Limit Switch Style Inductive Proximity Sensors This Rugged Sensor Family Features Modular Components for Versatile Sensing Contents Overview . . . . . . . . . . . . . . . . . . . . . . Model Selection, Assembled Sensors . . . . . . . . . . . . Model Selection, Sensor Heads . . . . . . . . . . . . . . . . . Model Selection, Sensor Bodies . . . . . . . . . . . . . . . . . Model Selection, Logic Modules. . . . . . . . . . . . . . . . . Model Selection, Receptacles . . . . . Wiring Diagrams . . . . . . . . . . . . . . . . Model Selection, Accessories . . . . . Specifications . . . . . . . . . . . . . . . . . . Dimensions . . . . . . . . . . . . . . . . . . . . 1 2 4 5 5 6 7 7 9 9 The E51 Inductive Proximity Sensor family combines high performance with a familiar limit switch style housing. Modular, plug-in components provide application flexibility, ease of maintenance, less downtime and reduced inventory. Choose from 2-wire sensors with AC/DC operation, or 4-wire sensors in either AC or DC styles. Connection options include terminal, mini-connector or various lengths of cable. Choose from standard sensors that detect all types of metallic targets, or sensors designed to detect only a specific type of metal (ferrous only or non-ferrous only). The next page provides more detail on these two classes of sensors. Product Features Approvals UL Listed CSA Certified (where shown) For the most current information on this product, visit our web site at: www.sensingsolutions.com Viton(R) is a registered trademark of Dupont Dow Elastomers. PG.05D.11.T.E Rugged construction is ideal for industrial environments Viton(R) gaskets ensure a positive seal and high resistance to industry chemicals Direct replacement for worn out limit switches Sensor heads and bodies feature captive screws to eliminate loss All sensor heads include a selector switch to program output function to either N.O. or N.C. Sensor bodies feature bifurcated engagement prongs for a reliable connection when plugging into receptacle stabs. Engagement key between sensor body and receptacle prevents improper assembly Sensors accommodate both U.S. and DIN mounting dimensions Wiring terminals feature captive pressure plate saddles for #18 to #12 AWG wire. A green screw identified ground terminal is also included Logic modules are available to provide additional control functions For Customer Service in the U.S. call 1-800-356-1243, in Canada call 1-800-268-3578. For Application Assistance in the U.S. and Canada call 1-800-426-9184. 1 Inductive Proximity Sensors E51 Limit Switch Style, Modular 2 Standard Sensors Standard E51 sensors feature long sensing ranges and a choice of top or side sensing heads. Alternate frequency units eliminate interference when mounted close to standard frequency units. Order sensors in component form, as assembled plug-in units, or in a sealed version where the sensor body is factory assembled to an epoxy filled recep- May 2001 tacle with tamper-proof screws to ensure a lasting seal. Ferrous or Non-ferrous Sensors The E51 includes special sensing heads that detect only ferrous metals such as steel or iron, while ignoring non-ferrous metals like aluminum. Non-ferrous sensors perform just the opposite function. A common application for this type of sensor incorporates a nonferrous sensor to detect an aluminum part while ignoring the steel fixture that is holding it. Ferrous and non-ferrous sensors are available in component form or as assembled units with epoxy filled receptacles for use in environments with cutting fluids or other contaminants. Top and side sensing heads are also available. Model Selection -- Assembled Sensors -- Standard (with Terminal Wiring) Assembled Sensor Sensor Heads Sensor Body and Receptacle Sensing Range Shielding 2-Wire Sensors 4-Wire Sensors Operating Voltage 20 - 264V AC/DC 120V AC Output N.O. or N.C. N.O. and N.C. Complementary N.O. and N.C. Complementary Sensor Body E51SAL E51SCL E51SCN Accepts Logic Modules E51SPL PNP E51SNL NPN Receptacle E51RA E51RC E51RCB E51RN E51RN Frequency Catalog Number Sensor Head Only Catalog Number Assembled Sensors with Head, Sensor Body and Receptacle Standard E51DT1 E51ALT1 E51CLT1 E51CNT1 E51PLT1 E51NLT1 Alternate E51DT2 E51ALT2 E51CLT2 E51CNT2 E51PLT2 E51NLT2 Standard E51DT5 E51ALT5 E51CLT5 E51CNT5 E51PLT5 E51NLT5 Alternate E51DT6 E51ALT6 E51CLT6 E51CNT6 E51PLT6 E51NLT6 Standard E51DS1 E51ALS1 E51CLS1 E51CNS1 E51PLS1 E51NLS1 Alternate E51DS2 E51ALS2 E51CLS2 E51CNS2 E51PLS2 E51NLS2 Standard E51DS5 E51ALS5 E51CLS5 E51CNS5 E51PLS5 E51NLS5 Alternate E51DS6 E51ALS6 E51CLS6 E51CNS6 E51PLS6 E51NLS6 10 - 30V DC Standard Sensing Top Sensing 0.51 inches (13 mm) 0.94 inches (24 mm) Side Sensing 0.51 inches (13 mm) 0.94 inches (24 mm) Unshielded Shielded Unshielded All sensor heads feature a programmable output selector switch for N.O. or N.C. operation. Operation is as follows: For This Output Type: Shielded Set Selector Position: "TARGET" "NO TARGET" N.O. Target Present Target Absent N.C. Target Absent Target Present Logic modules must be ordered separately, see Page 5. These sensor bodies are rated NEMA 4, 4X and 13. Receptacles feature terminal wiring with a 1/2" NPT thread at the conduit entrance. Other connection options are available: Connection Option 20 mm thread at the conduit entrance Mini-Connector termination with epoxy filled receptacle, see Page 6 for additional receptacle options Pre-wired cable with epoxy filled receptacle Suffix 2-wire, 3-pin connector 4-wire, 5-pin connector 8 feet long 12 feet long 20 feet long Example 20 P3 E51ALT120 E51ALT1P3 P5 E51CLT1P5 S S12 S20 E51ALT1S E51ALT1S12 E51ALT1S20 Sensor heads feature color coded target symbols: Yellow for standard frequency; Green for alternate frequency; Red for ferrous; Blue for non-ferrous. PG.05D.11.T.E Inductive Proximity Sensors E51 Limit Switch Style, Modular May 2001 3 Model Selection -- Assembled Sensors -- Standard and Ferrous/Non-ferrous (with Epoxy Filled Receptacles and Pre-wired Cables) Assembled Sensor Sensor Base Type with 8 Foot Cable 2-Wire Sensors 4-Wire Sensors Operating Voltage 20 - 264V AC/DC 120V AC 10 - 30V DC Output N.O. or N.C. N.O. and N.C. Complementary N.O. and N.C. Complementary PNP Sensor Heads Sensing Range Shielding Frequency Catalog Number Sensor Head Only NPN Catalog Number Assembled Sensors with Head and Sensor Base Standard Sensing (Sensor Body Is Attached to Receptacle with Tamper-Proof Screws) Top Sensing 0.51 inches (13 mm) 0.94 inches (24 mm) Side Sensing 0.51 inches (13 mm) 0.94 inches (24 mm) Shielded Unshielded Shielded Unshielded Standard E51DT1 E51ALT16P E51CLT16P E51PLT16P E51NLT16P Alternate E51DT2 E51ALT26P E51CLT26P E51PLT26P E51NLT26P Standard E51DT5 E51ALT56P E51CLT56P E51PLT56P E51NLT56P Alternate E51DT6 E51ALT66P E51CLT66P E51PLT66P E51NLT66P Standard E51DS1 E51ALS16P E51CLS16P E51PLS16P E51NLS16P Alternate E51DS2 E51ALS26P E51CLS26P E51PLS26P E51NLS26P Standard E51DS5 E51ALS56P E51CLS56P E51PLS56P E51NLS56P Alternate E51DS6 E51ALS66P E51CLS66P E51PLS66P E51NLS66P Ferrous metals only E51DT8 E51ALT86P E51CLT86P E51PLT86P E51NLT86P Non-ferrous metals only E51DT7 E51ALT76P E51CLT76P E51PLT76P E51NLT76P Ferrous metals only E51DS8 E51ALS86P E51CLS86P E51PLS86P E51NLS86P Non-ferrous metals only E51DS7 E51ALS76P E51CLS76P E51PLS76P E51NLS76P Ferrous or Non-ferrous Metal Sensing Top Sensing Side Sensing 0.31 inches (8 mm) 0.31 inches (8 mm) Shielded Shielded All sensor heads feature a programmable output selector switch for N.O. or N.C. operation. Operation is as follows: For This Output Type: Set Selector Position: "TARGET" "NO TARGET" N.O. Target Present Target Absent N.C. Target Absent Target Present Switch bases feature 8 feet of SOOW-A cable. Other connection options are available: Connection Option Suffix Example Mini-Connector mounted on 3 foot (900 mm) pigtail cable T E51ALT16PT Mini-Connector mounted to switch base C E51ALT16PC Cable longer than 8 feet, add required length in 1 foot increments to listed Catalog Number -- 20 foot maximum (Length in feet) E51ALT16P12 for 12 feet Sensor heads feature color coded target symbols: Yellow for standard frequency; Green for alternate frequency; Red for ferrous; Blue for non-ferrous. PG.05D.11.T.E Inductive Proximity Sensors E51 Limit Switch Style, Modular 4 May 2001 Model Selection -- Sensor Heads Sensing Range Shielding Frequency Target Material Catalog Number Standard Sensing Top Sensing 0.51 inches (13 mm) Shielded 0.94 inches (24 mm) Side Sensing Unshielded 0.51 inches (13 mm) Shielded 0.94 inches (24 mm) Unshielded Standard All metals E51DT1 Alternate All metals E51DT2 Standard All metals E51DT5 Alternate All metals E51DT6 Standard All metals E51DS1 Alternate All metals E51DS2 Standard All metals E51DS5 Alternate All metals E51DS6 Standard Ferrous metals only E51DT8 Non-ferrous metals only E51DT7 Ferrous metals only E51DS8 Non-ferrous metals only E51DS7 Ferrous or Non-ferrous Metal Sensing Top Sensing Side Sensing 0.31 inches (8 mm) Shielded 0.31 inches (8 mm) Shielded Standard All sensor heads feature a programmable output selector switch for N.O. or N.C. operation. Operation is as follows: For This Output Type: Set Selector Position: "TARGET" "NO TARGET" N.O. Target Present Target Absent N.C. Target Absent Target Present Sensor heads feature color coded target symbols: Yellow for standard frequency; Green for alternate frequency; Red for ferrous; Blue for non-ferrous. PG.05D.11.T.E Inductive Proximity Sensors E51 Limit Switch Style, Modular May 2001 5 Model Selection -- Sensor Bodies Operating Voltage Output Protection Output Rating Continuous Type Catalog Number 20 - 264V AC/DC, 50/60 Hz 1 output, load powered, N.O. or N.C., programmable from head; off state leakage current:: <1.7 mA at 120V AC/DC, <2.0 mA at 240V AC Latching short circuit and overload 0.5A -- E51SAL 120V AC, 50/60 Hz 2 complementary outputs, line powered, N.O. and N.C. 1.0A to 158 (70), linearly derated to 0.6A at 176 (80) -- E51SCL 1.0A to 113 (45), linearly derated to 0.3A at 176 (80) -- E51SCN 0.6A to 104 (40), linearly derated to 0.36A at 176 (80) NPN E51SNL PNP E51SPL 2-Wire Sensors AC/DC 4-Wire Sensors AC -- E51SCN Shown DC 10 - 30V DC 2 complementary outputs, line powered, N.O. and N.C. Reverse polarity This sensor body is available in a factory-sealed, non plug-in configuration (with 8-foot cable), add 6P to listed Catalog Number. Example: E51SAL6P. Sensor body is black. E51SCN sensor bodies are rated NEMA 4, 4X and 13. This sensor accepts logic modules, as seen in chart below. Model Selection -- Logic Modules (for E51SCN Sensor Body Only) Reset time is 25 mS minimum. Rated NEMA 4, 4X and 13. Type Description Timing Range Catalog Number ON Delay Adjustable delay between time object is sensed and time switch function occurs 0.15 to 15.0 seconds E51MTE OFF Delay Adjustable delay between time object leaves sensing field and time switch transfers back to non-sensing state 0.15 to 15.0 seconds E51MTD ON and OFF Delay Combination of above 0.15 to 15.0 seconds E51MTB Delayed Single Shot Adjusts length of time switch remains on ON cycle after object is sensed regardless of length of time object stays in sensing field. ON cycle can also be delayed after object is first detected 0.15 to 15.0 seconds E51MSS Repeatability of the timing cycle is 1% at constant voltage, ambient temperature and reset time. PG.05D.11.T.E Inductive Proximity Sensors E51 Limit Switch Style, Modular 6 May 2001 Model Selection -- Receptacles Description Style Details Cable Length Catalog Number Conduit Entrance 1/2" NPT Surface Mount Conduit entrance, front or rear mounting 2-wire, AC/DC 4-wire, AC -- -- E51RA E51RA20 Gray -- E51RC E51RC20 Black -- E51RCB E51RCB20 -- -- E51RN E51RN20 4-wire, DC Mini-Connector Pigtail with Mini-Connector Prewired Cable Epoxy filled receptacle with prewired Mini-Connector Epoxy filled receptacle with Mini-Connector mounted on 3 foot (900 mm) cable Epoxy filled receptacle with prewired 16 gauge, yellow jacketed, type SOOW-A cable. Cable enters through hole threaded for conduit 2-wire, AC/DC 3-pin -- E51RAP3 -- 4-wire, AC 5-pin -- E51RCP5 -- 4-wire, DC 5-pin -- E51RNP5 -- 2-wire, AC/DC 3-pin 3 feet (0.9m) E51RAPT3 -- 4-wire, AC 5-pin 3 feet (0.9m) E51RCPT5 -- 4-wire, DC 5-pin 3 feet (0.9m) E51RNPT5 -- 2-wire, AC/DC 3-conductor 8 feet (2.4m) E51RAS 4-wire, AC 4-wire, DC 20 mm 5-conductor 5-conductor 12 feet (3.6m) E51RAS12 20 feet (6m) E51RAS20 8 feet (2.4m) E51RCS 12 feet (3.6m) E51RCS12 20 feet (6m) E51RCS20 8 feet (2.4m) E51RNS E51RA20S -- -- E51RC20S -- -- E51RN20S 12 feet (3.6m) E51RNS12 -- 20 feet (6m) E51RNS20 -- Black receptacle is for color compatibility with E51SCN sensor body. PG.05D.11.T.E Inductive Proximity Sensors E51 Limit Switch Style, Modular May 2001 7 Wiring Diagrams (Pin numbers are for reference, rely on pin location when wiring) Operating Voltage Output Terminal and Calbe Models Mini-Connector Models (Face View Male Shown) 2-Wire Sensors 20 - 264V AC or DC 50/60 Hz N.O. or N.C. (N.O. shown, can be changed to N.C. using switch on sensor head) 1 White 2 Black Load L1 or (-) L2 or (-) L1 or +V 3 4 Load L2 or +V Green 4-Wire Sensors 120V AC 50/60 Hz N.O. and N.C. Load Red 1 2 Orange L1 10 - 30V DC N.O. and N.C. NPN 3 4 L1 Load N.C. L2 Green Load N.O. Load Load Red 1 2 Black +V Green Orange (-) Load 3 4 +V N.O. White N.O. and N.C. PNP (-) N.C. Load Load Red 1 2 +V Orange (-) Load 3 4 Green +V Load N.C. White Black L2 Load White Black (-) Load N.O. Changing output switch on sensor head will reverse output function (N.O. becomes N.C., and N.C. becomes N.O.). Model Selection -- Accessories Description Catalog Number Universal Mounting Bracket 1 hole, includes mounting hardware, stainless steel E51KH2 Universal Mounting Bracket 2 hole, includes mounting hardware, steel E51KH4 PG.05D.11.T.E Approximate Dimensions in Inches [mm] Except as Noted 8 Inductive Proximity Sensors E51 Limit Switch Style, Modular May 2001 Model Selection -- Accessories (Continued) Description Catalog Number Approximate Dimensions in Inches [mm] Except as Noted Machine Mounting Bracket Zinc die cast construction E50KH3 NOTE: Dimensions in mm [Inches] Stand-Off Mounting Bracket Steel construction E51KH3 NOTE: Dimensions in mm [Inches] Remote Sensor Head Assembly Permits mounting sensor head up to 3 feet (0.9m) from sensor body E51KRM A variety of cables, connector blocks and accessories See PG.05.05.T.E Connector Cables PG.05D.11.T.E Inductive Proximity Sensors E51 Limit Switch Style, Modular May 2001 Specifications Output Rating (NEMA D150) AC/DC Models AC Models DC Models 0.5A continuous 1A continuous 0.6A continuous Protection Latching short circuit protection on 2-wire AC/DC and 4-wire DC models Switching Rate AC models: 15 Hz; DC models: 50 Hz Indicator LEDs Lights when output is ON. One LED for each output Alternate Frequency Standard and alternate frequencies allow side-by-side operation without interference Enclosure Material Zinc die cast Gasket Material Viton Enclosure Ratings NEMA 3, 3S, 4, 4X, 6, 6P, 12 and 13 (IP67) E51SCN Sensor Body only: NEMA 4, 4X and 13 Hazardous Locations Ratings Class I Class II Class III Division II -- GRPS ABCD Division II -- GRPS F and G Division 2 Temperature Range -13 to 158F (-25 to 70C) Torque Requirements Switch Body Screws: 25 - 30 in-lb; Sensing Head Screws: 14 - 18 in-lb Approximate Dimensions in mm [Inches] Standard, Ferrous and Non-ferrous Sensors Can accommodate both U.S., 29.4 [1.16] x 59.5 [2.34] and DIN, 30 [1.18] x 60 [2.36], mounting dimensions. PG.05D.11.T.E Sensor with Logic Module Can accommodate both U.S., 29.4 [1.16] x 59.5 [2.34] and DIN, 30 [1.18] x 60 [2.36], mounting dimensions. 9