3SE3 2 SIGUARD Position Switches

Transcription

1 3E3 2 IGUARD Position witches Description Application The function of position switches (limit switches) is to produce electrical signals corresponding to the positions by moving machinery. The units are suitable for use in any climate. The 3E3 200 and 3E3 210 position switches (limit switches) except 3E can also be used in potentially explosive atmosphere EEx ia l confirming to certificate of conformity BV No. B pecifications IEC /EN and VDE 0660 Part 200. The 3E3 2 switches can be used as safety position switches in control systems conforming to IEC / EN and VDE 0113 Part 1. Positive opening The NC of the switch are forced open mechanically by the plunger (positive opening). In order to ensure this positive opening, the position switch must be actuated in such a way that the nominal stroke, see Pages 8/9 to 8/13 and 8/28 to 8/32, is substantially exceeded. In addition to this, the NO only close after the NC have opened (exception: low action make-beforebreak-). Furthermore, the 3E3 200 position switches (limit-switches) comply in dimensions and functional dimensions with EN and the 3E3 230 position switches (limit-switches) comply in dimensions and functional dimensions with EN The safety requirements of "total insulation" are guaranteed by the use of plastic for the enclosure and thread. The 3E3 200 and 3E3 210 moulded-plastic enclosed position switches meet the requirements of the accident prevention regulations of the chweizerischen Unfallversicherungsanstalt (UVA). The following actuator types have been approved: Overtravel plunger 3E3 2.0.C.D Roller lever.e Angular roller lever.f.g Overtravel plunger M18 1.L M18 1.M For use in safety circuits, the position switches (limit switches) must either be fixed on the 20 mm (40 mm) centres, be locked with a pin or fitted with a stop. Design The 3E3 2 position switches (limit switches) are enclosed in a glassfibre reinforced flameretardant moulded-plastic enclosure. The position switches have one or two cable entries. The cable entry has a Pg 13.5 steel-conduit thread for glands acc. to DIN , sheet 1, thread lengths 6 mm (see also accessories on page 8/24). All actuators can be retro-fitted or exchanged for another version. They can also be repositioned every 90 so that the switches can be operated from any of the four sides. The roller crank and rod actuators can be operated from both sides and be positioned on the actuating spindle. The rollers of the actuators are made from wear resistant plastic. The position switches (limit switches) are available with snap-action, slowaction and slow-action make-before-break. Contact reliability The movable switch are double moving. This increases the contact reliability even when the switch has to be operated with low voltages and currents, e. g. 5 V DC/1 ma. The switching point of the snap action is independent of the switching corrosion. The contact chamber is covered to prevent ingress of foreign bodies. Technical data Rated insulation voltage U i 500 V hort circuit protecion 1 ) DIAZED-fuse links Utilisation category gl/gg 6 A, Characteristics quick response10 A Mechanical endurance make-break operations( für 3E ) Electrical endurance make-break operations with 3RH11, 3RT10 16, 3RT10 17, 3RT10 24 to 3RT10 26 (3TH4, 3TF40 to 3TF43) contactors for AC-15 duty make-break operations when interrupting I e / AC-15 at 230 V for DC-13 duty With DC the contact endurance depends not only on the breaking current but also on the voltage, the circuit endurance and the speed of switching. No generally valid information can be given. Rated operational voltage U e AC 500 V, over AC 380 V only for equal potential Conventional free-air thermal current I th 10 A Rated operational current I e AC 40 to 60 Hz DC U e I e /AC-12 I e /AC-15 U e I e / DC-12 I e / DC-13 V A A V A A Operating frequency 6 10³ make-break operations per hour with 3RH11, 3RT10 16, 3RT10 17, 3RT10 24 to 3RT10 26 (3TH4, 3TF40 to 3TF43) contactors Operating accuracy Operating point Cable entry Pg 13.5 Ambient temperature 30 to +85 C Degree of protection acc. to DIN VDE 0470 and IEC IP 67 (IP 66 for 3E3 230) Conductor cross-section Mounting position 1) Without any welding acc. to DIN VDE 0660 Part mm for repeated switching, measured at the plunger with snap-action independent of contact wear constant throughout the life of the switch mm² solid mm² finely stranded with end sleeves any B, E and C ratings Conventional thermal current Rated voltage witching capacity 3E3 200, 3E A 300 V Heavy Duty, A 600/Q 600 8/4 iemens N K 2000

2 2 Moving double-break Degree of protection IP 67 EN election and ordering data 3E3 position switches 3E3 position switches 3E3 position switches 31 mm wide 50 mm wide with 2 slow-action with 2 slow-action with 2 slow-action The actuators can be subsequently interchanged 1 ) Actuator type Enclosure width Order No. Price Order No. Price Order No. Price Actuator EN mm Preferred type 1 unit 1 unit 1 unit kg Overtravel plunger B 31 3E C 3E C 3E C E C ) C 31 3E D 3E D 3E D E D 0.07 Roller lever E 31 3E E 3E E 3E E E E 0.07 Wght. app. Angular roller lever 31 3E F 3E F 3E F E F ) A 31 3E G 3E G 3E G E G 0.08 adjustable length, 31 3E U 3E U 3E U E U 0.09 Rod actuator Moulded-plastic rod 31 3E W 3E W 3E W E W 0.09 Aluminium 31 3E V 3E V 3E V 0.08 rod 50 3E V 0.09 pring rod 31 3E E E E Overtravel plunger central fixing with M 18 x 1 thread 31 3E L 3E L 3E L E L 0.07 central fixing with M 18 x 1 thread 31 3E M 3E M 3E M E M 0.07 ee for special designs on page 8/8. For operation, operating speed and travel, see pages 8/9 to 8/13. For multi-unit packing, see Part 17. afety function according to IEC and DIN VDE 0660 Part 200. Design according to EN ) ee page 8/8. 2) pecial design for use in exceptionally dusty conditions (Actuator in degree of protection IP 65). Order No. has to be modified as follows: 3E3 2...D in 3E3 2...XJ 3E3 2...G in 3E3 2...XG. iemens N K /5

3 election and ordering data 2 Moving double-break Degree of protection IP 67 EN E3 position switches 3E3 position switches 3E3 position switches 31 mm wide 50 mm wide with 2 snap-action with 2 snap-action with 2 slow-action make before-break The actuators can be subsequently interchanged 1 ). Actuator type Enclosure width Order No. Price Order No. Price Order No. Price Actuator EN mm Preferred type 1 unit 1 unit 1 unit kg Overtravel plunger B 31 3E C 3E C 3E C E C 3E C 3E C ) C 31 3E D 3E D 3E D E D 3E D 3E D 0.07 Wght. app. Roller lever E 31 3E E 3E E 3E E E E 3E E 3E E 0.07 Angular roller lever 31 3E F 3E F 3E F E F 3E F 3E F ) A 31 3E G 3E G 3E G E G 3E G 3E G 0.08 adjustable length, 31 3E U 3E U 3E U E U 3E U 3E U 0.09 Rod actuator Moulded-plastic rod 31 3E W 3E W 3E W E W 3E W 3E W 0.09 Aluminium 31 3E V 3E V 3E V 0.08 rod 50 3E V 3E V 3E V 0.09 pring rod 31 3E E E E pring rod 31 3E R 3E R E R 0.08 Overtravel plunger central fixing with M 18 x 1 thread central fixing with M 18 x 1 thread 31 3E L 3E L E L 3E L E M 3E M E M 3E M 0.07 ee for special designs on page 8/8. ee for operation, operating speed and travel, on pages 8/9 to 8/13. For multi-unit packing, see Part 17. afety function according to IEC and DIN VDE 0660 Part 200. Design according to EN ) ee page 8/8. 2) pecial design for use in exceptionally dusty conditions (Actuator in degree of protection IP 65). Not valid for 3E Order No. has to be modified as follows: 3E3 2...D in 3E3 2...XJ 3E3 2...G in 3E3 2...XG. 8/6 iemens N K 2000

4 , with REET election and ordering data Function 3E3 2 position switches with integrated REET must be manually reset following operation before restarting is possible again. The blue mechanical REET button is on the switch itself. Design This switch series is offered in two enclosure widths: 31 mm to EN and 56 mm. The housing is designed to the IP 66 degree of protection. All types are equipped with two floating (1 NC + 1 NO). The NC contact complies with the requirements of positive opening in accordance with IEC for protection against personal injury. The position switches with REET can be ordered with different actuator types: Overtravel plunger Roller lever Angular roller lever 2 Moving double-break Degree of protection IP 66 EN pecial width 56 mm 3E3 position switches 3E3 position switches 31 mm wide with 2 slow-action with 2 slow-action Enclosure width Wght. app. mm Order No. Price Order No. Price kg Actuator 1 unit 1 unit Overtravel plunger 31 3E CV12 3E CV E CV12 3E CV E DV12 3E DV E DV12 3E DV Roller lever 31 3E EV12 3E EV E EV12 3E EV Angular roller lever 31 3E FV12 3E FV E GV12 3E GV E GV12 3E GV adjustable length 31 3E UV12 3E UV For travel, see page 8/14. For multi-unit packing, see Part 17. Technical data Rated insulation voltage U i 500 V Operating frequency make-break operations per hour Conventional thermal current I th 10 A (IEC ) Cable entry Pg 13.5 hort-circuit protection Utilisation category gl/gg, Characteristics quick response: 10 A Conductor cross-section Mechanical endurance make-break operations Ambient temperature 30 to +85 C Electrical endurance afety function according to make-break operations Degree of protection acc. to DIN VDE 0470 and IEC IP 66 IEC and DIN VDE 0660 Part 200. Design according to EN mm 2 solid, mm 2 finely stranded with end sleeve iemens N K /7

5 election and ordering data pecial designs for 3E3 200 and 3E ) moulded-plastic enclosed position switches Notes on ordering: When ordering special designs suffix the Order No. with "-Z" and with the order code Example: 3E E-Z A17 Design Order code Add. price Design Chlorine rubber membrane A17 Protection against overtravel A12 Higher resistance against: acids, ozone, sun rays and improved cold temperature flexibility of the plunger only for 3E C and 3E C with metal roller for position switches with roller plunger, roller lever, angular roller lever and roller crank A16 Order code Add. price with Teflon plunger only for 3E C and 3E C: optimized for lateral operation available with improved resistance to abrasion. The other operating mechanisms cannot be used with these position switches. Enclosure width Order No. Price 1 unit 31 mm 3E XH 50 mm 3E XH pecial designs for position switches with roller crank 2 ) Notes on ordering: When ordering special designs suffix the Order No. with "-Z" and with the order code Example: 3E G-Z A21 Design for type Moulded-plastic roller 3E3 200.G,.U, 3E3 210.G,.U, 3E3 230.GW,.U Roller Order diameter code 3E3 200.G,.U, 35 mm A21 3E3 210.G,.U 3E GW,.U 50 mm A22 Add. price Design for type Roller Order diameter code Rubber roller 30 mm A20 3E3 230.GW,.U 50 mm A23 Direct connection to A-Interface for all switch types with Pg 13.5 screw gland (see page 8/22) C01 Add. price Actuators for position switches 3E3 200 and 3E ) The actuator heads can be subsequently replaced with other variants. 1 ) The basic version is 3E C overtravel plunger. The following listed actuator heads can be fitted to it Actuator with fixing screws Fig. No. For position switches 3E3 200 Order No. Price Weight approx. 3E unit kg 1.D 3X Roller lever 2.E 3X Angular roller lever 3.F 3X G 3X adjustable length, 5.U 3X Rod actuator Moulded-plastic rod 6.W 3X Aluminium rod.v 3X pring rod. 3X pring rod 3 ) 7.R 3X Overtravel plunger 8.L 3X Central fixing with M 18 1 thread Central fixing with M 18 1 thread 9.M 3X ) Not for position switches with separate actuators and for position switches 3E XH, 3E XH. 2) Not valid for 3E ) Only for snap-action. 8/8 iemens N K 2000

6 Operation by a bar witch blocks Nominal travel witch blocks Nominal travel v max. H operating point acc. to EN max. operating speed travel difference direction of operation Internal circuit diagram Terminal designation 0-line * ** reference line acc. to EN contact closed contact open operating point on return positive opening to IEC Overtravel plunger along plunger axis perpendicular to plunger axis along plunger axis Form B 3E3 200.C 3E3 210.C 3E3 200 and 3E3 210 IGUARD Position witches Operation, operating speed and travel of actuators 2 NO v max. = 0.5 m/s Form C 3E3 200.D 3E3 210.D nap-action along plunger axis perpendicular to plunger axis along plunger axis 2 nap-action 1) Not valid for 3E iemens N K /9

7 Operation, operating speed and travel of actuators 1 ) Operation by a bar witch blocks Nominal travel witch blocks Nominal travel v max. H Roller lever Type E 3E3 200.E 3E3 210.E operating point acc. to EN max. operating speed travel difference direction of operation Internal circuit diagrams Terminal designation 0-line * ** reference line acc. to EN contact closed contact open operating point on return positive opening to IEC perpendicular to plunger axis in direction of operation: nap-action Angular roller lever Type C 3E3 200.F 3E3 210.F along plunger axis along plunger axis The above example of approach is for 3E3 200; this design is not possible for 3E in direction of operation: 2 NO 1) Not valid for 3E nap-action 8/10 iemens N K 2000

8 Operation, operating speed and travel of actuators 1 ) Operation by a bar witch blocks Nominal travel witch blocks Nominal travel v max. H operating point acc. to EN max. operating speed travel difference direction of operation Type A 3E3 200.G v max. = 1.5 m/s 18 N Internal circuit diagrams Terminaldesignation 0-line * ** reference line acc. to EN contact closed contact open operating point on return positive opening to IEC perpendicular to plunger axis 2 NO perpendicular to plunger axis nap-action Adjustable length, 3E3 200.U 3E3 210.U v max. = 1.5 m/s 18 N 1) Not valid for 3E nap-action perpendicular to plunger axis 2 NO perpendicular to plunger axis iemens N K /11

9 Operation, operating speed and travel of actuators 1 ) Operation by a bar witch blocks Nominal travel witch blocks Nominal travel v max. max. operating speed direction of operation Internal circuit diagram Terminal designation 0-line * reference line acc. to EN contact closed contact open operating point on return Rod actuator 3E3 200.W 3E3 210.W (Moulded-plastic rod) 3E3 200.V 3E3 210.V (Aluminium rod) 3E E (pring rod) v max. = 1.5 m/s 18 N nap-action in direction of rotation 2 NO in direction of rotation pring rod 3E R 3E R nap-action a) approach area b) minimum deflection in operation (to ensure reliable switching) c) maximum deflection in operation (to prevent damage) 1) Not valid for 3E /12 iemens N K 2000

10 Operation, operating speed and travel of actuators 1 ) Operation by a bar witch blocks Nominal travel witch blocks Nominal travel v max. H operating point acc. to EN max. operating speed travel difference direction of operation Overtravel plunger Central fixing with M 18 3E3 200.L 3E3 210.L Internal circuit diagrams Terminal designation 0-line * ** reference line acc. to EN contact closed contact open operating point on return positive opening to IEC along plunger axis perpendicular to plunger axis along plunger axis 2 NO v max. = 0.5 m/s nap-action Central fixing with M18 thread 3E3 200.M 3E3 210.M witch blocks and nominal travel see overtravel plunger. 1) Not valid for 3E iemens N K /13

11 , with REET Travel of actuators Actuator witch blocks Nominal travel Overtravel plunger 3E3 2.0.CV12 3E3 2.0.DV12 Roller lever, angular roller lever 3E3 2.0.EV12, 3E3 2.0.FV12 3E3 2.0.GV12, 3E3 2.0.UV12 Internal circuit diagrams Terminal designation 0-line ** reference line acc. to EN contact closed contact open positive opening to IEC /14 iemens N K 2000

12 2 Moving double-break Degree of protection IP 66 EN E3 position switches 3E3 position switches 3E3 position switches 40 mm wide with 2 slow-action with 2 slow-action with 2 slow-action The actuators can be subsequently interchanged 1 ) 3E3 230 IGUARD Position witches election and ordering data Actuator type Fig. No. witch block 3E A witch block 3E A witch block 3E A EN Order No. Price Order No. Price Order No. Price Actuator unit 1 unit 1 unit kg Overtravel plunger B 1 3E C 3E C 3E C 0.11 C 2 3E D 3E D 3E D 0.12 Roller lever 3 3E E 3E E 3E E 0.13 Angular roller lever 4 3E F 3E F 3E F 0.14 Actuator made from moulded plastic adjustable length, A 5 3E GW 3E GW 3E GW E U 3E U 3E U 0.14 Rod actuator D 7 3E W 3E W 3E W 0.14 Moulded plastic rod Aluminium rod 3E V 3E V 3E V E3 position switches 3E3 position switches 3E3 position switches with 2 snap-action with 2 snap-action with 2 slow-action make before Wght app witch block 3E A The switch has the same construction as the 3E metal-enclosed switch detailed on pages 8/18 and 8/19. ee for operation, operating speed and travel or angle on pages 8/28 to 8/32. For multi-unit packing, see Part 17. witch block 3E A Overtravel plunger B 1 3E C 3E C 3E C 0.11 C 2 3E D 3E D 3E D 0.12 Roller lever 3 3E E 3E E 3E E 0.13 Angular roller lever 4 3E F 3E F 3E F 0.14 Actuator made from moulded plastic adjustable length, A 5 3E GW 3E G 3E GW E U 3E U 0.14 Rod actuator D 7 3E W 3E W 0.14 Moulded plastic rod Aluminium rod 3E V 3E V 0.14 pring rod 8 3E R 3E R 0.14 afety function according to IEC and DIN VDE 0660 Part 200. Design according to EN ) ee on page 8/16. iemens N K /15

13 3E3 230 IGUARD Position witches election and ordering data Actuator heads for 3E3 230 position switches 1 ) The actuator heads can be subsequently exchanged. Operating mechanism with fixing screws and gasket For 3E3 230 position switches Order No. Price Weight approx. 1 unit kg Overtravel plunger.c 3X D 3X Roller lever.e 3X Angular roller lever.f 3X GW 3X adjustable length.u 3X Rod actuator adjustable length with aluminium rod.v 3X with moulded-plastic rod.w 3X pring rod 2 ) (different lengths on request) 1R 3X ) Not valid for 3E ) Not valid for snap-action. 8/16 iemens N K 2000