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Product-specific safety information

2.2 Current information about operational safety

3TK28 safety relays

10

Manual, 07/2016, NEB926157502000/RS-AB/003

2.2

Current information about operational safety

Important note for maintaining operational safety of your system

WARNING

Hazardous Voltage.
Can Cause Death, Serious Injury, or Property Damage.
Please take note of our latest information
Systems with safety-related characteristics are subject to special operational safety

requirements on the part of the operator. The supplier is also obliged to comply with special

product monitoring measures. For this reason, we publish a special newsletter containing

information on product developments and features that are (or could be) relevant to

operation of safety-related systems. By subscribing to the appropriate newsletter, you will

ensure that you are always up-to-date and able to make changes to your system, when

necessary:
SIEMENS newsletter (

http://www.siemens.com/industrial-controls/newsletter

Sign on to the following newsletter under "Products & Solutions":

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Control Components and System Engineering News

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Safety Integrated Newsletter

2.3

Declaration of conformity

The manufacturer declares that the safety components of the SIRIUS 3TK series in the

designs marketed by us comply with the applicable basic safety and health requirements of

the EC Directives* stated (including amendments) and that the stated standards* were

applied in their design and construction.
* You can download the complete EC Declaration of Conformity as a PDF.

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Summary of Contents for 3TK28

Page 1: ...____________ Industrial controls Safety technology 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 Introduction 1 Product specific safety information 2 Description of the individual safety relays 3 Mounting 4 Connection 5 Dimension drawings 6 Accessories 7 ...

Page 2: ...only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING Siemens pr...

Page 3: ...Cable lengths 19 3 5 General information about enabling and signaling circuits 20 3 6 3TK28 safety relays with relay enabling circuits 21 3 6 1 3TK2810 0 safety relay 21 3 6 1 1 Applications 21 3 6 1 2 Description of function and connection information 21 3 6 1 3 Structure of the 3TK2810 0 23 3 6 1 4 Terminal assignment 23 3 6 1 5 Display of the operating state 24 3 6 1 6 State diagram 3TK2810 0 2...

Page 4: ... function and connection information 64 3 6 5 3 Structure 3TK2824 A 20 65 3 6 5 4 Terminal assignment 65 3 6 5 5 Display of the operating state 66 3 6 5 6 State diagrams 3TK2824 A 20 66 3 6 5 7 Technical data 3TK2824 A 20 67 3 6 5 8 Connection examples 3TK2824 A 20 70 3 6 6 3TK2825 safety relay 72 3 6 6 1 Applications 72 3 6 6 2 Description of function and connection information 72 3 6 6 3 Commiss...

Page 5: ...n examples 3TK2840 116 3 7 2 3TK2841 safety relay 118 3 7 2 1 Applications 118 3 7 2 2 Description of function and connection information 118 3 7 2 3 Structure 3TK2841 119 3 7 2 4 Terminal assignment 119 3 7 2 5 Display of the operating state 120 3 7 2 6 State diagrams 3TK2841 121 3 7 2 7 Technical data 3TK2841 122 3 7 2 8 Connection examples 3TK2841 124 3 7 3 3TK2842 safety relay 127 3 7 3 1 Appl...

Page 6: ...rating state 161 3 8 3 6 State diagrams 3TK2853 162 3 8 3 7 Technical data 3TK2853 163 3 8 3 8 Connection examples 3TK2853 166 3 8 4 3TK2856 3TK2857 safety relays 171 3 8 4 1 Applications 171 3 8 4 2 Description of function and connection information 171 3 8 4 3 Structure 3TK2856 57 172 3 8 4 4 Terminal assignment 173 3 8 4 5 Display of the operating state 174 3 8 4 6 State diagrams 3TK2856 3TK285...

Page 7: ... practice oriented introduction Furthermore the manual contains dimension drawings circuit diagrams and technical data of the 3TK28 safety relays to facilitate configuration 1 2 Required basic knowledge A general knowledge of the following areas is needed in order to understand this manual Low voltage switchgear Digital circuit logic Automation systems Safety systems 1 3 Validity range The manual ...

Page 8: ... signaling units and uses reliable shutdown concepts It is the responsibility of the manufacturer of a system or machine to ensure that the product functions properly Siemens AG its regional offices and associated companies hereinafter referred to as Siemens cannot guarantee all the properties of an entire plant system or machine that has not been designed by Siemens Nor can Siemens assume liabili...

Page 9: ...pment and components recommended by Siemens Correct transport storage installation and assembly as well as careful operation and maintenance are required to ensure that the product operates safely and without faults Before you run any sample programs or programs you have written yourself make sure that running the plant cannot cause injury to anyone else or damage to the machine itself EU note Com...

Page 10: ...on on product developments and features that are or could be relevant to operation of safety related systems By subscribing to the appropriate newsletter you will ensure that you are always up to date and able to make changes to your system when necessary SIEMENS newsletter http www siemens com industrial controls newsletter Sign on to the following newsletter under Products Solutions Control Comp...

Page 11: ...hen the power supply units PELV and SELV are switched off WARNING Hazardous voltage Will Cause Death Serious Injury or Property Damage Installing devices in control cabinets Taking the ambient conditions into account you must install the devices in control cabinets with the IP32 IP43 or IP54 degree of protection CAUTION Noise immunity grounding The following must be grounded in accordance with the...

Page 12: ...EB926157502000 RS AB 003 2 5 Safety information for hazardous areas WARNING Hazardous Voltage Can Cause Death Serious Injury or Property Damage Installation of the 3TK28 safety relays in hazardous areas The components of the 3TK28 are not suitable for installation in hazardous areas Please contact your ATEX specialist ...

Page 13: ...and the safety related functions of the safety relay Applications Depending on the version of the device and the external wiring with sensors and actuators applications up to Category 4 in accordance with DIN EN 954 1 or SILCL 3 in accordance with IEC 62061 PLe as specified in DIN EN ISO 13849 1 can be implemented In these applications 3TK28 safety relays perform the following functions Monitoring...

Page 14: ... 21 22 23 24 25 27 28 30 34 SENSORS Electromechanical X X X X X X X X X Solid state Magnetically operated switches X START TYPE Auto X X X X X X Monitored X X X X X X ENABLING CIRCUITS Instantaneous 3 NO 3 NO 2 NO 2 NO 2 NO 3 NO 2 NO 2 NO 4 NO 2 NO 2 NC Delayed 2 NO 2 NO SIGNALING CIRCUITS Relay 1 NC 1 NC 2 NC 1 NC 1 NC 2 NC Solid state Max achievable SIL acc to IEC 61508 IEC 62061 3 2 3 3 2 3 3 2...

Page 15: ...2061 2 3 3 Max achievable PL acc to EN ISO 13849 1 d e e 3TK28 safety relays with contactor relay enabling circuits 3TK28 05 06 50 51 52 53 56 57 SENSORS Electromechanical X X X X X X Solid state X Magnetically operated switches X X X X START TYPE Auto X X X X X Monitored X X X X ENABLING CIRCUITS Instantaneous 5 NO 5 NO 3 NO 2 NO 6 NO 3 NO 1 SS 6 NO 1 SS 1 SS Delayed 3 NO SIGNALING CIRCUITS Relay...

Page 16: ...nstantaneous 3 NO 1 NC 2 NO Delayed SIGNALING CIRCUITS Relay 1 CO Solid state 2 2 Achievable SIL PL Max achievable SIL acc to IEC 61508 IEC 62061 3 3 Max achievable PL acc to EN ISO 13849 1 e e SENSORS Without sensors X Sensors PNP NPN HTL TTL SIN COS NAMUR NO normally open SS solid state NC normally closed CO changeover You will find further information on 3TK2810 1 speed standstill monitors in M...

Page 17: ... 3TK2845 Delayed SIGNALING CIRCUITS Relay See manual 3TK2826 See manual 3TK2845 Solid state Max achievable SIL acc to IEC 61508 IEC 62061 3 3 Max achievable PL acc to EN ISO 13849 1 e e You will find further information on 3TK2826 in Manual 3TK2826 http support automation siemens com WW view en 24044904 You will find further information on 3TK2845 in Manual 3TK2845 http support automation siemens ...

Page 18: ...he housing IP40 IP degree of protection of the terminal IP20 Touch protection against electric shock V Safe from finger touch Hardware failure tolerance according to IEC 61508 1 Ambient temperature during storage during operation C 40 80 25 60 Atmospheric pressure according to SN 31205 hPa 900 1060 Relative air humidity during operation 10 95 Maximum operating altitude above MSL m 2000 Vibration r...

Page 19: ...meters 1 channel Sensor evaluation unit distance in meters 2 channel 3TK2805 150 150 3TK2806 150 150 3TK2820 DC 1000 1000 3TK2820 AC 1000 1000 3TK2821 1000 500 3TK2822 23 500 3TK2824 DC 1000 500 3TK2824 AC 1000 500 3TK2825 1000 500 3TK2827 28 1000 500 3TK2830 CB30 1000 500 3TK2830 AJ20 300 150 3TK2830 AL20 80 40 3TK2834 500 3TK2840 2000 2000 3TK2841 2000 2000 3TK2842 2000 2000 3TK2850 51 52 2000 2...

Page 20: ...ple When a safety function is requested or a fault detected the 3TK28 safety relays enter the safe state This means Solid state enabling circuits switch to the inactive state Solid state signaling circuits Solid state signaling circuits in 3TK28 safety relays signal the state of the enabling circuits functioning synchronously with the solid state enabling circuits When a safety function is request...

Page 21: ...nd the output relay is activated To enable adaptation of the device to the most varied types of motors and applications the voltage threshold Uan below which the 3TK2810 0 detects standstill can be set The duration for which Uan must be undershot to detect standstill definitively and enable the output circuit can also be set standstill time ts The device also detects wire break between the measure...

Page 22: ...curs during DC braking The enabling circuits are only released when braking has ended i e the standstill monitor no longer detects a DC component motor stopped and control terminals X2 X3 are jumpered or a manual reset is performed via these terminals If the 3TK2810 is used with a frequency converter terminals X2 X3 must be jumpered or a manual reset must be performed before restart Use of control...

Page 23: ... setting Labels 3 6 1 4 Terminal assignment Terminal Description A1 L control supply voltage Us A2 N control supply voltage Us A3 24 V DC power supply to signaling outputs A4 Ground for signaling outputs L1 L2 L3 Signal inputs X1 X2 X3 Control terminals 11 12 NC contact positive action enabling circuit 23 24 33 34 43 44 NO contact positive action enabling circuit 51 52 54 Signaling output changeov...

Page 24: ...functioning of the device are indicated by three LEDs DEVICE lights up green during operation lights up red on internal device faults OUT lights up yellow on EMF Uan flashes green when ts elapses green steady light on enabling the output contacts SF flashes on faults in the measurement and feedback circuit and on insufficient auxiliary voltage UH see flashing code LED flashing codes of the red LED...

Page 25: ... individual safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 25 3 6 1 6 State diagram 3TK2810 0 Figure 3 1 tE Detection time after wire break ...

Page 26: ...ty related wiring of the inputs measuring inputs Product feature transverse contact secure No Safety Integrity Level SIL according to IEC 61508 SIL3 SIL claim limit for a subsystem according to EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 SIL3 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 e Category ...

Page 27: ...0 as contact less semiconductor switching element for reporting function non delayed 2 delayed switching 0 safety related non delayed 0 delayed switching 0 Stop category according to DIN EN 60204 1 0 Design of the input cascading input functional switching No feedback input Yes start input No Design of the electrical connection jumper socket Yes Switching capacity current at AC 15 at 24 V A of the...

Page 28: ...e relay outputs required quick 5 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 rated value Hz 50 Control supply voltage frequency 2 rated value Hz 60 Control supply voltage 1 for DC final rated value for DC rated value V 24 Operating range factor control supply voltage rated value of the magnet coil at 50 Hz for AC initial value 0 8 final value 1 1 at ...

Page 29: ...sed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact No emergency stop function No protective door monitoring No standstill monitoring Yes step mat monitoring No monitored start up No Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monito...

Page 30: ... circuits 3TK28 safety relays 30 Manual 07 2016 NEB926157502000 RS AB 003 Input data L1 L2 L3 Measurement motor voltage V Max 690 AC IEC max 600 AC UL Input resistances kΩ Approx 400 Reponse value Uan mV Approx 20 400 settable Standstill time ts s 0 2 6 settable Figure 3 2 Derating table ...

Page 31: ...with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 31 3 6 1 8 Connection examples 3TK2810 0 Motor contactors Figure 3 3 Without evaluation of the feedback circuit Motor contactors Figure 3 4 With evaluation of the feedback circuit ...

Page 32: ...ty relays with relay enabling circuits 3TK28 safety relays 32 Manual 07 2016 NEB926157502000 RS AB 003 With jumper between X2 X3 for automatic acknowledgment of open circuit detection Figure 3 5 Use of the 3TK2810 0 standstill monitor in a wye delta connection ...

Page 33: ...to EN 60204 1 section 9 2 5 4 after shutdown in an emergency EMERGENCY STOP must be prevented by suitable means 3 6 2 2 Description of function and connection information The 3TK2820 safety relay has three enabling circuits safe circuits NO and one signaling circuit non safe NC The number of enabling circuits can be increased by adding one or more 3TK2830 expansion blocks Two LEDs indicate the ope...

Page 34: ... Removable terminal blocks Selector switch Labels 3 6 2 4 Terminal assignment Terminal Description A1 L A2 N IN1 Sensor channel 1 IN2 Sensor channel 2 IN3 ON button feedback circuit T1 Test output 1 for IN1 T2 Test output 2 for IN2 T3 Test output 3 for IN3 13 14 Enabling circuit 1 NO relay contact 23 24 Enabling circuit 2 NO relay contact 33 34 Enabling circuit 3 NO relay contact 41 42 Signaling c...

Page 35: ...ng state Two LEDs and a slide switch indicate the operating state and functioning of the device DEVICE OUT Operating state of 3TK2820 LED Operation DEVICE OUT Line supply EMERGENCY STOP ON Enabling circuit On Not pressed Pressed Closed Pressed Not pressed Open Not pressed Not pressed Open Fault Fault in sensor circuit Open off on Selector switch Start Up Automatic start Down Monitored start ...

Page 36: ...lock out all power supplying this device before working on this device Mounting the device on a DIN rail Requirements At the installation location a horizontal 35 mm mounting rail in accordance with DIN EN 60715 is properly secured Please observe the information about the mounting position in Chapter General technical data Page 18 DIN rail mounting procedure Step Operating instruction Figure 1 Han...

Page 37: ... Property Damage Before starting work therefore disconnect the system and devices from the power supply Requirements All system interface connections are terminated The terminal blocks have been removed or disconnected Disassembling the device from a DIN rail Step Operating instruction Figure 1 Unlock the device using a screwdriver 2 Pull the lower half of the device away from the DIN rail 3 Lift ...

Page 38: ...e PZ 1 4 mm Torque 0 8 1 2 Nm Screwdriver Size 0 or 1 width to 3 mm for raising the terminal springs DIN 5264 A 0 5 x 3 Rigid cable A 8mm 1 x 0 5 2 5 mm2 1 x AWG 20 to 14 2 x 0 5 1 5 mm2 2 x AWG 20 to 16 A 10 mm 1 x 0 5 2 5 mm2 1 x AWG 20 to 14 A 12 mm 1 x 0 5 4 mm2 1 x AWG 20 to 12 Flexible cable with end sleeve cable lug A 8 mm 1 x 0 5 2 5 mm2 1 x AWG 20 to 14 2 x 0 5 1 0 mm2 2 x AWG 20 to 18 A ...

Page 39: ...ype terminal until it engages 2 Hold the cable in the screw type terminal 3 Tighten the screw of the terminal in which the cable is inserted 4 Pull on the cable to ensure it is screwed tight Procedure for spring loaded terminal blocks Step Operating instruction Figure 1 To release the clamping springs insert the flat head screwdriver as far as it will go into the square opening of the spring loade...

Page 40: ... head screwdriver between the clip of the terminal block and the front panel 2 Lift the terminal block out of the guiderail of the device Disconnecting screw type terminals Step Operating instruction 1 Unscrew the screw of the screw type terminal 2 Remove the cable from the unscrewed screw type terminal Disconnecting spring loaded terminals Step Operating instruction 1 Insert the flat head screwdr...

Page 41: ...r Property Damage Before starting work therefore disconnect the system and devices from the power supply Requirements You must have removed the terminal blocks for the purpose of replacing a device for example Procedure when plugging in the terminal blocks Step Operating instruction Figure 1 Insert the removable terminal block into the guiderail of the device 2 Check that the clip of the removable...

Page 42: ... SIL according to IEC 61508 SIL3 SIL claim limit for a subsystem according to EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type A Probability of dangerou...

Page 43: ...urrent of the contact affected switching element maximum A 5 Electrical operating cycles as operating time typical 200 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 10 A or quick response 10 A or MCB type B 2 A or MCB type C 1 6 A or SITOP select diagnostics module ord...

Page 44: ...closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monitoring No monitored start up Yes Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring Yes EMERGENCY OFF circuit...

Page 45: ...afety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 45 3 6 2 9 Connection examples 3TK2820 Figure 3 6 Autostart 2 channel Figure 3 7 Monitored start 2 channel ...

Page 46: ...f the individual safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 46 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 8 Autostart 1 channel Figure 3 9 Monitored start 1 channel ...

Page 47: ...t mode depending on device variant When the EMERGENCY STOP buttons are released or position switches operated and the ON button is pressed the internal circuit of the safety relay and the external contactors are monitored to ensure that they are functioning correctly If monitoring results in a fault free state it is possible to start the device using the ON button in monitored start mode This clos...

Page 48: ...S AB 003 3 6 3 4 Structure 3TK2822 23 Front view No Meaning Display LEDs Removable terminal blocks Labels 3 6 3 5 Terminal assignment Terminal Description A1 L A2 N Y11 Y12 Channel 1 EMERGENCY STOP or limit switch Y21 Y22 Channel 2 EMERGENCY STOP or limit switch Y33 Y34 On button feedback circuit 13 14 Enabling circuit 1 NO 23 24 Enabling circuit 2 NO ...

Page 49: ...hree LEDs POWER CHANNEL 1 CHANNEL 2 Operating states of 3TK2822 23 off on LED Operation POWER CHANNEL 1 CHANNEL 2 Line supply EMERGENCY STOP ON Enabling circuit On Not pressed Pressed Closed Pressed Not pressed Open Not pressed Not pressed Open Fault Relay welded Motor contactor welded Fault in electronics Short circuit in ON circuit on 3TK2823 only Open Cross circuit in EMERGENCY STOP circuit min...

Page 50: ...ety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 50 Manual 07 2016 NEB926157502000 RS AB 003 3 6 3 7 State diagrams 3TK2822 3TK2823 Figure 3 10 State diagram 3TK2822 Figure 3 11 State diagram 3TK2823 ...

Page 51: ...3 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 4 according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061 1 h 0 0000000013 ...

Page 52: ...ected switching element maximum A 5 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 rated value Hz 50 Con...

Page 53: ... protective door monitoring Yes No standstill monitoring No step mat monitoring Yes monitored start up No Yes Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitoring No Yes proximity switches monitoring No opto electronical protection device monitoring No position switch monitoring Yes tactile...

Page 54: ... relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 54 Manual 07 2016 NEB926157502000 RS AB 003 3 6 3 9 Connection examples 3TK2822 3TK2823 Figure 3 12 Autostart 2 channel Figure 3 13 Monitored start 2 channel ...

Page 55: ...DIN EN ISO 13849 1 1 4 PL d or Cat 4 can only be achieved if faults can be ruled out for the positive opening contacts to IEC 60947 5 1 Annex K and for the mechanical system In the sensor circuit DC 0 3 6 4 2 Description of function and connection information The 3TK2821 safety relay has three enabling circuits safe circuits as NO circuits and a signaling circuit as an NC circuit The 3TK2824 safet...

Page 56: ...7502000 RS AB 003 3 6 4 3 Structure 3TK2821 24 Front view No Meaning Display LEDs Removable terminal blocks Labels 3 6 4 4 Terminal assignment Terminal Description A1 L A2 N Y1 Y1 On button feedback circuit 13 14 Enabling circuit 1 NO 23 24 Enabling circuit 1 NO 33 34 Enabling circuit 1 NO 3TK2821 only 41 42 Signaling circuit 1 NC 3TK2821 only ...

Page 57: ...1 CHANNEL 2 Operating states of 3TK2821 24 off on LED Operation POWER CHANNEL 1 CHANNEL 2 Line supply EMERGENCY STOP ON Enabling circuit On Not pressed Pressed Closed Pressed Not pressed Open Not pressed Not pressed Open Fault Relay welded Motor contactor welded Fault in electronics Open Cross circuit or ground fault in EMERGENCY STOP circuit minimum fault current IKmin 0 5 A PTC fuse responds or ...

Page 58: ...ing to EN 62061 1 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 3 according to ISO 13849 1 3 2 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061...

Page 59: ... affected switching element maximum A 5 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply voltage AC DC DC AC DC Control supply voltage frequency 1 rated va...

Page 60: ...ction Yes protective door monitoring Yes standstill monitoring No step mat monitoring No monitored start up No Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitoring Yes proximity switches monitoring No opto electronical protection device monitoring No position switch monitoring Yes tactile s...

Page 61: ...elays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 61 3 6 4 8 Connection examples 3TK2821 3TK2824 Figure 3 15 EMERGENCY STOP 1 channel Figure 3 16 EMERGENCY STOP 2 channel ...

Page 62: ...l safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 62 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 17 Protective door monitoring 1 channel Figure 3 18 Protective door monitoring 2 channel ...

Page 63: ...Description of the individual safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 63 Figure 3 19 3TK2821 as contact extension ...

Page 64: ... IEC 60204 1 Sections 9 2 5 4 2 and 10 8 3 after shutdown in an emergency EMERGENCY STOP must be prevented by the higher level control Table 3 2 Achievable SIL CL PL as an evaluation unit 1 channel 2 channel SILCL in accordance with IEC 62061 1 1 PL DIN EN ISO 13849 c c Cat DIN EN ISO 13849 1 1 3 6 5 2 Description of function and connection information The 3TK2824 safety relay has two enabling cir...

Page 65: ... 003 65 3 6 5 3 Structure 3TK2824 A 20 Front view No Meaning Display LEDs Removable terminal blocks Labels 3 6 5 4 Terminal assignment Terminal Description A1 L A2 N Y11 Y12 Channel 1 EMERGENCY STOP or limit switch Y21 Y22 Channel 2 EMERGENCY STOP or limit switch Y33 Y34 On button feedback circuit 13 14 Enabling circuit 1 NO 23 24 Enabling circuit 2 NO ...

Page 66: ...icated by three LEDs POWER CHANNEL 1 CHANNEL 2 Operating states of 3TK2824 A 20 off on LED Operation POWER CHANNEL 1 CHANNEL 2 Line supply EMERGENCY STOP ON Enabling circuit On Not pressed Pressed Closed Pressed Not pressed Open Not pressed Not pressed Open Fault Relay welded Motor contactor welded Fault in electronics Open Cross circuit in EMERGENCY STOP circuit or no supply voltage 3 6 5 6 State...

Page 67: ...g to EN 62061 1 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 d for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 3 according to ISO 13849 1 2 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061 1 h...

Page 68: ...t affected switching element maximum A 5 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply voltage AC Control supply voltage frequency 1 rated value Hz 50 C...

Page 69: ...tact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact No emergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monitoring No monitored start up No Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitoring Y...

Page 70: ...relays with relay enabling circuits 3TK28 safety relays 70 Manual 07 2016 NEB926157502000 RS AB 003 3 6 5 8 Connection examples 3TK2824 A 20 Figure 3 21 Protective door monitoring autostart 2 channel Figure 3 22 EMERGENCY STOP 2 channel with additional ON button ...

Page 71: ... of the individual safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 71 Figure 3 23 EMERGENCY STOP 1 channel with additional ON button ...

Page 72: ...onitoring actuator and sensor circuits according to DIN EN IEC 60204 1 in Autostart or Monitored start mode When the EMERGENCY STOP buttons are released or position switches operated and the ON button is pressed the redundant safety relays the electronics and the external contactors are monitored to ensure that they are functioning correctly If monitoring results in a fault free state it is possib...

Page 73: ...Front view No Meaning Display LEDs Removable terminal blocks Labels 3 6 6 5 Terminal assignment Terminal Description A1 L A2 N Y10 Y11 Channel 1 1 channel Y11 Y12 Channel 1 2 channel Y21 Y22 Channel 2 2 channel Y33 Y34 On button feedback circuit Y43 Y44 Switchover between automatic start and monitored start 13 14 Enabling circuits NO 23 24 33 34 41 42 Enabling circuits NC contacts 51 52 ...

Page 74: ...e are indicated by three LEDs POWER CHANNEL 1 CHANNEL 2 Operating states of 3TK2825 off on LED Operation POWER CHANNEL 1 CHANNEL 2 Line supply EMERGENCY STOP ON Enabling circuit On Not pressed Pressed Closed Pressed Not pressed Open Not pressed Not pressed Open Fault Relay welded Motor contactor welded Fault in electronics Short circuit in ON circuit Open Cross circuit in EMERGENCY STOP circuit mi...

Page 75: ...s 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 75 3 6 6 7 State diagrams 3TK2825 Figure 3 24 State diagram 3TK2825 Figure 3 25 State diagram 3TK2825 monitored start autostart ...

Page 76: ...EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 4 according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061 1 h 0 00...

Page 77: ...nt of the contact affected switching element maximum A 6 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 ...

Page 78: ...ergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monitoring Yes monitored start up Yes Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitoring Yes proximity switches monitoring No opto electronical protection device monitoring No position switch monito...

Page 79: ...y relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 79 3 6 6 9 Connection examples 3TK2825 Figure 3 26 Monitored start 1 channel Figure 3 27 Monitored start 2 channel ...

Page 80: ... of the individual safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 80 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 28 Autostart 1 channel Figure 3 29 Autostart 2 channel ...

Page 81: ...elays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 81 Figure 3 30 Grounding Note It is not necessary to connect the PE terminal for the device to function For this reason we recommend that you do not wire this terminal ...

Page 82: ... and maximum performance level PLd Cat 3 SILCL 2 acc to DIN EN ISO 13849 1 IEC 62061 for time delayed enabling circuits with this device 3 6 7 2 Description of function and connection information The 3TK2827 28 safety relays have two time delayed and two instantaneous enabling circuits as NO circuits and one instantaneous signaling circuit as an NC circuit The operating state and functioning are i...

Page 83: ...27 1AL21 3TK2827 2AL21 24 V DC Monitored 0 05 30 3TK2827 1BB40 3TK2827 2BB40 24 V AC Monitored 0 05 30 3TK2827 1AB20 3TK2827 2AB20 115 V AC Monitored 0 05 30 3TK2827 1AJ20 3TK2827 2AJ20 230 V AC Monitored 0 05 30 3TK2827 1AL20 3TK2827 2AL20 Table 3 4 3TK2828 Rated control supply voltage US V Start type OFF delay tV s Article No Screw type Article No Spring loaded 24 V DC Auto 0 05 3 3TK2828 1BB41 ...

Page 84: ...re 3TK2827 28 Front view No Meaning Display LEDs Removable terminal blocks Time setting Labels 3 6 7 4 Terminal assignment Terminal Description A1 L A2 N Y10 Y11 Channel 1 1 channel Y11 Y12 Channel 1 2 channel Y21 Y22 Channel 2 2 channel Y33 Y34 On button feedback circuit 13 14 Enabling circuits NO 23 24 31 32 Enabling circuit NC 47 48 Enabling circuits NO time delayed 57 58 ...

Page 85: ...2 t Line supply EMERGENCY STOP ON Enabling circuit On Not pressed Pressed Closed Pressed delay time running Not pressed FK1 FK2 open FK1 t FK2 t closed Pressed Not pressed Open Not pressed Not pressed Open Fault Relay welded Motor contactor welded Fault in electronics Short circuit in ON circuit Open Cross circuit in EMERGENCY STOP circuit minimum fault current IKmin 0 5 A PTC fuse responds or sup...

Page 86: ...6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 86 Manual 07 2016 NEB926157502000 RS AB 003 3 6 7 6 State diagrams 3TK2827 3TK2828 Figure 3 31 State diagram 3TK2827 monitored start Figure 3 32 State diagram 3TK2828 Autostart ...

Page 87: ...cording to EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 SIL2 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 d Category according to EN 954 1 4 according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to...

Page 88: ... affected switching element maximum A 5 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 rated value Hz 50...

Page 89: ... contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact No emergency stop function Yes protective door monitoring No standstill monitoring No step mat monitoring Yes monitored start up Yes Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitor...

Page 90: ...ntegrity level SIL for delayed release circuit according to IEC 61508 SIL2 Performance level PL according to ISO 13849 1 e Performance Level PL for delayed release circuit according to ISO 13849 1 d Category according to EN 954 1 4 according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061...

Page 91: ... affected switching element maximum A 5 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 rated value Hz 50...

Page 92: ...rotective door monitoring Yes standstill monitoring No step mat monitoring Yes monitored start up No Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitoring No proximity switches monitoring No opto electronical protection device monitoring No position switch monitoring Yes tactile sensor monit...

Page 93: ...lays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 93 3 6 7 8 Connection examples 3TK2827 3TK2828 Figure 3 33 Monitored start 1 channel Figure 3 34 Monitored start 2 channel ...

Page 94: ... of the individual safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 94 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 35 Autostart 1 channel Figure 3 36 Autostart 2 channel ...

Page 95: ...elays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 95 Figure 3 37 Grounding Note It is not necessary to connect the PE terminal for the device to function For this reason we recommend that you do not wire this terminal ...

Page 96: ...ordance with IEC 62061 is equivalent to the performance level PL Cat SIL of the basic unit if the external circuitry cable connection between basic unit and expansion unit is failsafe 3 6 8 2 Description of function and connection information The 3TK2830 has four safe enabling circuits as NO circuits and one positive action NC circuit Two LEDs indicate the operating state The 3TK2830 is controlled...

Page 97: ...16 NEB926157502000 RS AB 003 97 3 6 8 3 Structure 3TK2830 Front view No Meaning Display LEDs Removable terminal blocks Labels 3 6 8 4 Terminal assignment Terminal Description A1 L A2 N 13 14 Enabling circuit 1 NO 23 24 Enabling circuit 2 NO 33 34 Enabling circuit 3 NO 43 44 Enabling circuit 4 NO 51 52 Monitoring of the 3TK2830 NC ...

Page 98: ...erating state and functioning of the device are indicated by two LEDs CHANNEL 1 CHANNEL 2 Operating states of 3TK2830 off on LED Operation Channel 2 Channel 2 Line supply Enabling circuit On Closed Open Fault Relay jammed Motor contactor jammed Fault in electronics Supply voltage missing 3 6 8 6 State diagrams 3TK2830 Figure 3 38 State diagrams 3TK2830 CB30 A 20 1 50 ms 100 ms 2 25 ms 80 ms 3 30 m...

Page 99: ... SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 corresponds to basic unit according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061 1 h 0 0000000012 ...

Page 100: ...affected switching element maximum A 5 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply voltage AC AC DC Control supply voltage frequency 1 rated value Hz ...

Page 101: ...No protective door monitoring No standstill monitoring No step mat monitoring No monitored start up No Acceptability for application safety related circuits No safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitoring No proximity switches monitoring No opto electronical protection device monitoring No position switch monitoring No tactile sensor monit...

Page 102: ...ety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays 102 Manual 07 2016 NEB926157502000 RS AB 003 3 6 8 8 Connection examples 3TK2830 Figure 3 39 EMERGENCY STOP Figure 3 40 EMERGENCY STOP with time delay ...

Page 103: ...4 can be achieved with this device 3 6 9 2 Description of function and connection information The 3TK2834 two hand control device has two enabling circuits as NO circuits and two signaling circuits as NC circuits The operating state and functioning are indicated by five LEDs Pressing buttons S1 and S2 simultaneously 0 5 s closes the enabling circuits Releasing one button opens the enabling circuit...

Page 104: ...000 RS AB 003 3 6 9 3 Structure 3TK2834 Front view No Meaning Display LEDs Removable terminal blocks Labels 3 6 9 4 Terminal assignment Terminal Description A1 L A2 N 13 14 Enabling circuit 1 NO 23 24 Enabling circuit 2 NO 31 32 Signaling circuit 1 NC 41 42 Signaling circuit 2 NC Y11 Y12 Feedback circuit Y21 Y22 Y23 Button S1 Y31 Y32 Y33 Button S2 ...

Page 105: ...e LEDs POWER S 1 ON S 2 ON CHANNEL 1 CHANNEL 2 Operating states of 3TK2834 off on LED Operation POWER S 1 ON S 2 ON Channel 1 Channel 2 Button Not pressed Only S1 pressed Only S2 pressed S1 and S2 pressed The device cannot start with the following faults Short circuit e g between the buttons Defective relay coils Wire break Jammed contacts The output relays do not pick up if simultaneity 0 5 s is ...

Page 106: ... Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 4 according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type A Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061 1 h 0 0000000014 T...

Page 107: ...3 at 115 V A 0 2 at 230 V A 0 1 Thermal current of the contact affected switching element maximum A 6 Electrical operating cycles as operating time typical 100 000 Mechanical operating cycles as operating time typical 10 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 6 A or quick 10 A Type of voltage of the controlled supply volt...

Page 108: ...o protective door monitoring No standstill monitoring No step mat monitoring No monitored start up No Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit monitoring No proximity switches monitoring No opto electronical protection device monitoring No position switch monitoring Yes tactile sensor moni...

Page 109: ...ription of the individual safety relays 3 6 3TK28 safety relays with relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 109 3 6 9 7 Connection example Figure 3 41 Two hand ...

Page 110: ...r SILCL 2 in accordance with IEC 62061 can be achieved 3 7 1 2 Description of function and connection information The 3TK2840 safety relay has two solid state outputs The operating state and functioning are indicated by three LEDs All internal parts of the circuit are cyclically monitored for faults during operation Connect the EMERGENCY STOP button or the position switch to terminals Y11 Y12 and ...

Page 111: ... 7 1 3 Structure 3TK2840 Front view No Meaning Display LEDs Removable terminal blocks Labels 3 7 1 4 Terminal assignment Terminal Description A1 L A2 N Y11 Y12 Channel 1 EMERGENCY STOP or position switch Y21 Y22 Channel 2 EMERGENCY STOP or position switch Y20 Parameterization single channel sensor connection Y33 Y34 ON button feedback circuit 14 24 Solid state outputs ...

Page 112: ...the operating state The operating state and functioning of the device are indicated by three LEDs POWER RUN FAULT Operating states of 3TK2840 off on LED Operation POWER RUN FAULT Line supply EMERGENCY STOP ON Outputs On Not pressed Pressed On Pressed Not pressed Off Not pressed Not pressed Off Fault Fault in electronics Cross circuit in EMERGENCY STOP circuits Off Supply voltage missing ...

Page 113: ... 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 113 3 7 1 6 State diagrams 3TK2840 Figure 3 42 State diagram 3TK2840 autostart Figure 3 43 State diagram 3TK2840 monitored start ...

Page 114: ... Yes Safety Integrity Level SIL according to IEC 61508 SIL2 SIL claim limit for a subsystem according to EN 62061 2 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 d for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 3 according to ISO 13849 1 3 Safety device type according to IEC 61508 2 T...

Page 115: ...rated value of the magnet coil for DC 0 9 1 15 Product function automatic start Yes rotation speed monitoring No laser scanner monitoring No light grid monitoring No light barrier monitoring No magnetic switch monitoring Normally closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitor...

Page 116: ... relays 3 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays 116 Manual 07 2016 NEB926157502000 RS AB 003 3 7 1 8 Connection examples 3TK2840 Figure 3 44 Autostart 2 channel Figure 3 45 Monitored start 2 channel ...

Page 117: ... individual safety relays 3 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 117 Figure 3 46 Autostart 1 channel Figure 3 47 Monitored start 1 channel ...

Page 118: ...nd connection information The solid state 3TK2841 safety relay has two safe solid state outputs The operating state and functioning are indicated by three LEDs On startup the device runs a self test in which the internal electronics are checked for correct functioning All internal parts of the circuit are cyclically monitored for faults during operation Connect the EMERGENCY STOP button or the pos...

Page 119: ...t view No Meaning Display LEDs Removable terminal blocks Labels 3 7 2 4 Terminal assignment Terminal Description A1 L A2 N Y11 Y12 Channel 1 EMERGENCY STOP or position switch Y21 Y22 Channel 2 EMERGENCY STOP or position switch Y35 with without cross circuit detection Y32 Parameterization single channel sensor connection Y34 ON button feedback circuit 1 Cascade input 14 24 Safe solid state outputs ...

Page 120: ...UN FAULT Operating states of 3TK2841 off on flashing LED Operation POWER RUN FAULT Line supply EMERGENCY STOP ON Outputs On Not pressed Pressed On Pressed1 Not pressed Off Not pressed Not pressed Off Self test on startup approx 7 s Fault Fault in electronics Change of pin assignment during operation Short circuit to 24 V2 Off Supply voltage missing 1 Sensor circuits open cross circuit between sens...

Page 121: ... 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 121 3 7 2 6 State diagrams 3TK2841 Figure 3 48 State diagram 3TK2841 autostart Figure 3 49 State diagram 3TK2841 monitored start ...

Page 122: ...l SIL according to IEC 61508 SIL3 SIL claim limit for a subsystem according to EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 4 according to ISO 13849 1 4 Safety device type according to IEC 61508 2 Type B Probability of dange...

Page 123: ...duct function automatic start Yes rotation speed monitoring No laser scanner monitoring Yes light grid monitoring Yes light barrier monitoring Yes magnetic switch monitoring Normally closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monit...

Page 124: ... relays 3 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays 124 Manual 07 2016 NEB926157502000 RS AB 003 3 7 2 8 Connection examples 3TK2841 Figure 3 50 Autostart 2 channel Figure 3 51 Monitored start 2 channel ...

Page 125: ...ty relays 3 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 125 Figure 3 52 Autostart 2 channel without cross circuit detection Figure 3 53 Monitored start 1 channel ...

Page 126: ...n of the individual safety relays 3 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays 126 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 54 Safety shutdown mat Figure 3 55 Cascading ...

Page 127: ...ng are indicated by three LEDs On startup the device runs a self test in which the internal electronics are checked for correct functioning All internal parts of the circuit are cyclically monitored for faults during operation Connect the EMERGENCY STOP button or the position switches or light array to terminals Y11 Y12 and Y21 Y22 Connect the ON button in series with the NC contacts of the extern...

Page 128: ...lay LEDs Removable terminal blocks Time setting Labels 3 7 3 4 Terminal assignment Terminal Description A1 L A2 N Y11 Y12 Channel 1 EMERGENCY STOP or position switch Y21 Y22 Channel 2 EMERGENCY STOP or position switch Y35 with without cross circuit detection Y32 Parameterization single channel sensor connection Y34 ON button feedback circuit 1 Cascade input 14 Safe solid state output 28 Safe solid...

Page 129: ... of 3TK2842 off on flashing LED Operation POWER RUN FAULT Line supply EMERGENCY STOP ON Outputs On Not pressed Pressed On Pressed1 Not pressed Off Not pressed Not pressed Off 3 Pressed Not pressed On Off Self test on startup approx 7 s Fault Fault in electronics Change of pin assignment during operation Short circuit to 24 V2 Off Supply voltage missing 1 Sensor circuits open cross circuit between ...

Page 130: ... 7 3TK28 safety relays with solid state enabling circuits 3TK28 safety relays 130 Manual 07 2016 NEB926157502000 RS AB 003 3 7 3 6 State diagrams 3TK2842 Figure 3 56 State diagram 3TK2842 autostart Figure 3 57 State diagram 3TK2842 monitored start ...

Page 131: ...rse contact secure Yes Safety Integrity Level SIL according to IEC 61508 SIL3 SIL claim limit for a subsystem according to EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 SIL3 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 13849 1 e Category according to EN 954 1 4 according to ISO 13849 1 4 Safety device type a...

Page 132: ...ted value of the magnet coil for DC 0 9 1 15 Product function automatic start Yes rotation speed monitoring No laser scanner monitoring Yes light grid monitoring Yes light barrier monitoring Yes magnetic switch monitoring Normally closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monito...

Page 133: ... with solid state enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 133 3 7 3 8 Connection examples 3TK2842 Converter Figure 3 58 Protective door monitoring autostart 2 channel Converter Figure 3 59 EMERGENCY STOP monitored start 2 channel ...

Page 134: ...lid state enabling circuits 3TK28 safety relays 134 Manual 07 2016 NEB926157502000 RS AB 003 Converter Figure 3 60 EMERGENCY STOP monitored start 1 channel Frequency converter without safety function Figure 3 61 Light array monitoring 2 channel without cross circuit detection ...

Page 135: ...fety relays with solid state enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 135 Converter Figure 3 62 Safety shutdown mat autostart 2 channel Converter Figure 3 63 Cascading EMERGENCY STOP protective door monitoring 2 channel ...

Page 136: ...t the function of the safety circuit is retained in case of a fault in the contactor relay The supply voltage must meet the requirements of DIN EN IEC 60204 1 Terminal A2 must be connected to the side of the control circuit that is connected to the protective circuit On each ON and OFF cycle of the machine to be switched the contacts of the contactor relays are checked for correct opening and clos...

Page 137: ...ty relays Manual 07 2016 NEB926157502000 RS AB 003 137 3 8 1 3 Structure 3TK2805 06 Front view No Meaning Display LEDs Terminal blocks Labels 3 8 1 4 Terminal assignment Terminal Description A1 L A2 N X1 X6 Control connections 13 14 23 24 33 34 43 44 53 54 Enabling circuits NO 65 66 Signaling circuits feedback circuit ...

Page 138: ...26157502000 RS AB 003 3 8 1 5 Display of the operating states Operating states of 3TK2805 06 POWER indicates that the device is energized CHANNEL 1 and CHANNEL 2 light up if the ON button has been operated and the contacts of the EMERGENCY STOP button or the position switch are closed 3 8 1 6 State diagrams 3TK2805 3TK2806 Figure 3 64 Automatic start ...

Page 139: ... at for enabling circuit and signaling circuit IK 1 kA Operational class gL gG 6 A fast 10 A Operational class gL gG 6 A fast 6 A Utilization category acc to VDE0660 200 DIN EN IEC 60947 5 1 Rated operational voltage Ue V Rated operational current Ie A if all enabling circuits are loaded 50 C 55 C AC 1 AC 12 6 6 AC 15 24 4 4 230 4 3 400 3 3 DC 13 24 6 6 230 0 5 0 5 Rated power AC 3 230 0 55 kW 0 5...

Page 140: ... 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays 140 Manual 07 2016 NEB926157502000 RS AB 003 3 8 1 8 Connection examples 3TK2805 3TK2806 Connection examples 3TK2805 Figure 3 65 Monitored start EMERGENCY STOP 2 channel ...

Page 141: ... 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 141 Connection examples 3TK2806 Figure 3 66 Autostart protective door 2 channel Figure 3 67 Autostart protective door 1 channel ...

Page 142: ...n the external circuitry a maximum performance level PLd Cat 3 in accordance with DIN EN ISO 13849 1 or SILCL 2 in accordance with IEC 62061 can be achieved with this device 3 8 2 2 Description of function and connection information The solid state 3TK285 safety combination has two contactor relays The operating state and functioning are indicated by three LEDs All internal parts of the circuit ar...

Page 143: ...lays 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 143 3 8 2 3 Structure 3TK285 Front view No Meaning Removable terminal block Display LEDs Terminal blocks Labels ...

Page 144: ...0 RS AB 003 3 8 2 4 Terminal assignment Terminal Description A1 L A2 N Y11 Y12 Channel 1 EMERGENCY STOP or position switch Y21 Y22 Channel 2 EMERGENCY STOP or position switch Y20 Parameterization single channel sensor connection Y33 Y34 ON button feedback circuit 13 14 Contact units see contact units graphic 1 Auxiliary contact units Figure 3 68 Contact units ...

Page 145: ...cated by three LEDs POWER RUN FAULT Operating state of 3TK285 off on LED Operation POWER RUN FAULT EMERGENCY STOP ON Outputs Cause Not pressed Pressed On Normal operation Pressed No function Off EMERGENCY STOP protective door pressed Not pressed Not pressed Contactors opened press ON button to start Fault Fault in electronics Change of pin assignment during operation Short circuit to 24 V Off EMER...

Page 146: ...uits 3TK28 safety relays 146 Manual 07 2016 NEB926157502000 RS AB 003 3 8 2 6 State diagrams 3TK2850 3TK2851 3TK2852 2 For contact units see Chapter Terminal assignment Page 144 Figure 3 69 State diagram 3TK2850 3TK2851 3TK2852 autostart Figure 3 70 State diagram 3TK2850 3TK2851 3TK2852 monitored start ...

Page 147: ...2 SIL claim limit for a subsystem according to EN 62061 2 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 d for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 3 according to ISO 13849 1 3 Safety device type according to IEC 61508 2 Type B Probability of dangerous failure per hour PFHD with ...

Page 148: ...ent of the contact affected switching element maximum A Electrical operating cycles as operating time typical Mechanical operating cycles as operating time typical 30 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 10 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 rated value Hz 50 Cont...

Page 149: ...closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monitoring No monitored start up Yes Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit ...

Page 150: ...integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 d for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 3 according to ISO 13849 1 3 Safety device type according to IEC 61508 2 Type B Probability of dangerous failure per hour PFHD with high demand rate according to EN 62061 1 h 0 000000011 T1 value f...

Page 151: ...ent of the contact affected switching element maximum A Electrical operating cycles as operating time typical Mechanical operating cycles as operating time typical 30 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 10 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 rated value Hz 50 Cont...

Page 152: ...closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monitoring No monitored start up Yes Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit ...

Page 153: ...subsystem according to EN 62061 2 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 d for delayed release circuit according to ISO 13849 1 Category according to EN 954 1 3 according to ISO 13849 1 3 Safety device type according to IEC 61508 2 Type B Probability of dangerous failure per hour PFHD with high demand rate accordi...

Page 154: ...ent of the contact affected switching element maximum A Electrical operating cycles as operating time typical Mechanical operating cycles as operating time typical 30 000 000 Design of the fuse link for short circuit protection of the NO contacts of the relay outputs required gL gG 10 A Type of voltage of the controlled supply voltage AC DC Control supply voltage frequency 1 rated value Hz 50 Cont...

Page 155: ...closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monitoring No monitored start up Yes Acceptability for application safety related circuits Yes safety cut out switch Yes magnetically operated switches monitoring No EMERGENCY OFF circuit ...

Page 156: ...contactor relay enabling circuits 3TK28 safety relays 156 Manual 07 2016 NEB926157502000 RS AB 003 3 8 2 8 Connection examples 3TK2850 3TK2851 3TK2852 2 For contact units see Chapter Terminal assignment Page 144 Figure 3 71 Autostart 2 channel Figure 3 72 Autostart 1 channel ...

Page 157: ...vidual safety relays 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 157 Figure 3 73 Monitored start 2 channel Figure 3 74 Monitored start 1 channel ...

Page 158: ...3 8 3 2 Description of function and connection information The 3TK2853 solid state safety combination has two contactor relays as switching elements one safe solid state output one safe input for cascading and one input for functional switching The operating state and functioning are indicated by three LEDs On startup the device runs a self test in which the internal electronics are checked for co...

Page 159: ...lays 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 159 3 8 3 3 Structure 3TK2853 Front view No Meaning Removable terminal block Display LEDs Terminal blocks Labels ...

Page 160: ... N Y11 Y12 Channel 1 EMERGENCY STOP or position switch Y21 Y22 Channel 2 EMERGENCY STOP or position switch Y35 with without cross circuit detection Y32 Parameterization single channel sensor connection Y33 Y34 ON button feedback circuit 1 Cascade input 2 Safe solid state output 24V DC 1A 3 Power supply for external switches 4 Input for functional switching 13 14 Contact units 1 Auxiliary contact u...

Page 161: ... of the device are indicated by three LEDs POWER RUN FAULT Operating states of 3TK2853 off on flashing LED Operation POWER RUN FAULT EMERGENCY STOP ON Outputs Cause Not pressed Pressed On Normal operation Pressed no function Off EMERGENCY STOP protective door pressed Not pressed Not pressed Contactors opened press ON button to start Fault Fault in electronics Change of pin assignment during operat...

Page 162: ...ctor relay enabling circuits 3TK28 safety relays 162 Manual 07 2016 NEB926157502000 RS AB 003 3 8 3 6 State diagrams 3TK2853 2 For contact units see Chapter Terminal assignment Page 160 Figure 3 76 State diagram 3TK2853 autostart Figure 3 77 State diagram 3TK2853 monitored start ...

Page 163: ...ice switching Type of the safety related wiring of the inputs single channel and two channel Product feature transverse contact secure Yes Safety Integrity Level SIL according to IEC 61508 SIL3 SIL claim limit for a subsystem according to EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 Performance Level PL according to ISO 13849 1 e for delayed release circ...

Page 164: ...on delayed 1 delayed switching 0 Stop category according to DIN EN 60204 1 0 Design of the input cascading input functional switching Yes feedback input Yes start input Yes Design of the electrical connection jumper socket Yes Switching capacity current at AC 15 at 24 V A of the NO contacts of the relay outputs at AC 15 at 230 V A 6 at DC 13 at 24 V A 10 of the NC contacts of the relay outputs at ...

Page 165: ...ring Yes light grid monitoring Yes light barrier monitoring Yes magnetic switch monitoring Normally closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitoring Yes standstill monitoring No step mat monitoring Yes monitored start up Yes Acceptability for application safety related circu...

Page 166: ...TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays 166 Manual 07 2016 NEB926157502000 RS AB 003 3 8 3 8 Connection examples 3TK2853 2 For contact units see Chapter Terminal assignment Page 160 Figure 3 78 Autostart 2 channel ...

Page 167: ...ndividual safety relays 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 167 Figure 3 79 Autostart 1 channel Figure 3 80 Monitored start 2 channel ...

Page 168: ...s 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays 168 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 81 Monitored start 1 channel Figure 3 82 Light array monitoring 2 channel without cross circuit detection ...

Page 169: ...Description of the individual safety relays 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 169 Figure 3 83 Cascading ...

Page 170: ...lays with contactor relay enabling circuits 3TK28 safety relays 170 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 84 without functional operation Figure 3 85 with isolated contact functionally operated Figure 3 86 with non isolated contact functionally operated ...

Page 171: ...ating state and functioning are indicated by three LEDs On startup the device runs a self test in which the internal electronics are checked for correct functioning All internal parts of the circuit are cyclically monitored for faults during operation With safe output 2 additional expansion units such as 3TK2830 56 57 and external actuators or loads can be switched Also cascading with units 3TK284...

Page 172: ...ys 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays 172 Manual 07 2016 NEB926157502000 RS AB 003 3 8 4 3 Structure 3TK2856 57 Front view No Meaning Removable terminal block Display LEDs Terminal blocks Labels ...

Page 173: ...ys Manual 07 2016 NEB926157502000 RS AB 003 173 3 8 4 4 Terminal assignment Terminal Description A1 L A2 N 1 Cascade input 2 Safe solid state output 24V DC 1A 3 Power supply for external switches 4 Input for functional switching 13 14 Contact units see contact units graphic 1 Auxiliary contact units Figure 3 87 Contact units ...

Page 174: ... functioning of the device are indicated by three LEDs POWER RUN FAULT Operating state of 3TK2856 57 off on flashing LED Operation POWER RUN FAULT EMERGENCY STOP Op switching Contactors Output 2 Cause Self test on startup approx 7 s Closed Closed On On Normal operation Open Off Contactors off Open Off Open EMERGENCY STOP For 3TK2857 only Open On Off Time elapsed Fault Fault in electronics Contacto...

Page 175: ...ith contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 175 3 8 4 6 State diagrams 3TK2856 3TK2857 2 For contact units see Chapter Terminal assignment Page 173 Figure 3 88 State diagram 3TK2856 Figure 3 89 State diagram 3TK2857 ...

Page 176: ...rvice switching Type of the safety related wiring of the inputs Product feature transverse contact secure No Safety Integrity Level SIL according to IEC 61508 SIL3 SIL claim limit for a subsystem according to EN 62061 3 Safety integrity level SIL for delayed release circuit according to IEC 61508 SIL3 Performance Level PL according to ISO 13849 1 e for delayed release circuit according to ISO 1384...

Page 177: ...on delayed 1 delayed switching 0 Stop category according to DIN EN 60204 1 0 1 Design of the input cascading input functional switching Yes feedback input Yes start input Yes Design of the electrical connection jumper socket Yes Switching capacity current at AC 15 at 24 V A 4 of the NO contacts of the relay outputs at AC 15 at 230 V A 6 at DC 13 at 24 V A 10 of the NC contacts of the relay outputs...

Page 178: ...itoring No light grid monitoring No light barrier monitoring No magnetic switch monitoring Normally closed contact Normally open contact No magnetic switch monitoring Normally closed contact Normally closed contact Yes emergency stop function Yes protective door monitoring No standstill monitoring No step mat monitoring No monitored start up No Acceptability for application safety related circuits...

Page 179: ... relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 179 3 8 4 8 Connection examples 3TK2856 3TK2857 2 For contact units see Chapter Terminal assignment Page 173 Figure 3 90 3TK2823 expanded with 3TK2856 57 Figure 3 91 3TK2841 expanded with 3TK2856 57 ...

Page 180: ...l safety relays 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays 180 Manual 07 2016 NEB926157502000 RS AB 003 Figure 3 92 3TK2853 expanded with 3TK2856 57 Figure 3 93 without functional operation ...

Page 181: ... 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 181 Figure 3 94 with isolated contact functionally operated Figure 3 95 with non isolated contact functionally operated ...

Page 182: ...Description of the individual safety relays 3 8 3TK28 safety relays with contactor relay enabling circuits 3TK28 safety relays 182 Manual 07 2016 NEB926157502000 RS AB 003 ...

Page 183: ... RS AB 003 183 Mounting 4 4 1 Warning notices Warning notices before installation wiring and commissioning WARNING Hazardous voltage Can cause electric shock and burns Turn off and lock out all power supplying this device before working on this device ...

Page 184: ...rve the information about the mounting position in chapter General technical data Page 18 DIN rail mounting procedure Note The procedure is shown applied to the 45 mm housing The procedure for 22 5 mm devices is analogous For installation of the 3TK2820 see Section Mounting the device on a DIN rail Page 36 Step Operating instruction Figure 1 Hang the back of the device onto the upper edge of the D...

Page 185: ...ion drawings in the chapter Dimension drawings 3TK28 Page 195 Two screws with a maximum thread diameter of 4 8 mm Two plastic securing brackets Please refer to the accessories list for the relevant article number in the chapter Accessories Page 205 Note The procedure is shown applied to the 45 mm housing The procedure for 22 5 mm devices is analogous Procedure for mounting on a level surface Step ...

Page 186: ...pply Requirements All system interface connections are terminated The terminal blocks have been removed or disconnected Note The procedure is shown applied to the 45 mm housing The procedure for 22 5 mm devices is analogous Disassembling the device from a DIN rail Step Operating instruction Figure 1 Pull the device down until the lower half can be pulled away from the DIN rail 2 Pull the lower hal...

Page 187: ...57502000 RS AB 003 187 Disassembling the device from a level surface Step Operating instruction Figure 1 Hold the device firmly 2 Unscrew the cap screws 3 Lift the device from the level surface 4 Remove the securing brackets from the device See also Disassembling the device Page 37 ...

Page 188: ...Mounting 4 4 Disassembling the device 3TK28 safety relays 188 Manual 07 2016 NEB926157502000 RS AB 003 ...

Page 189: ...tip screwdriver Size PZ 2 5 6 mm Torque 0 8 1 2 Nm Article No 8WA2803 Screwdriver Size 0 or 1 width to 3 mm for raising the terminal springs Article No 8WH9200 0AA0 Rigid cable Maximum number of cables x cable cross section 1 x 0 5 4 0 mm2 or 2 x 0 5 2 5 mm2 Maximum number of cables x cable cross section 2 x 0 25 1 5 mm2 Flexible cable with end sleeve cable lug Maximum number of cables x cable cro...

Page 190: ...ystem and devices from the power supply Procedure for screw type terminal blocks Note The procedure is shown applied to the 45 mm housing The procedure for 22 5 mm devices is analogous Step Operating instruction Figure 1 Insert the relevant cable into square on the screw type terminal until it engages 2 Hold the cable in the screw type terminal 3 Tighten the screw of the terminal in which the cabl...

Page 191: ...g insert the 3 mm flat head screwdriver into the square opening of the spring loaded terminal until it engages Please observe a 10 horizontal angular deviation of the screwdriver to the oval opening 2 Insert the cable into the oval opening as far as it will go 3 Hold the cable in the spring loaded terminal 4 Remove the screwdriver 5 Pull on the cable to ensure it is tight See also Connecting termi...

Page 192: ...emoving terminal blocks from the device Note Order of removal Remove terminal block A before terminal block B and C before D Note The procedure is shown applied to the 45 mm housing The procedure for 22 5 mm devices is analogous Step Operating instruction Figure 1 Insert a flat head screwdriver between the clip of the terminal block and the front panel 2 Pull the terminal block out to the front 3 ...

Page 193: ...e terminal 2 Remove the cable from the unscrewed screw type terminal Disconnecting spring loaded terminals Step Operating instruction Figure 1 Insert the flat head screwdriver into the square opening of the spring loaded terminal until it engages Please observe a 10 horizontal angular deviation of the screwdriver to the oval opening 2 Remove the cable from the oval opening 3 Remove the screwdriver...

Page 194: ... mechanically coded to prevent polarity reversal The removable terminal blocks are mechanically coded to prevent polarity reversal and are labeled with A B C or D on the inside Only use the slots shown in the diagram below Note Plug in sequence Connect terminal block B before terminal block A and D before C Note The procedure is shown applied to the 45 mm housing The procedure for 22 5 mm devices ...

Page 195: ...ays Manual 07 2016 NEB926157502000 RS AB 003 195 Dimension drawings 6 6 1 Dimension drawings 3TK28 All dimensions in mm Figure 6 1 3TK2810 25 26 27 28 34 45 screw type Figure 6 2 3TK2810 25 26 27 28 34 45 spring loaded ...

Page 196: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays 196 Manual 07 2016 NEB926157502000 RS AB 003 Figure 6 3 3TK2820 3TK2820 1 A 103 6 B 113 3TK2820 2 A 111 2 B 113 X 5 Y 5 Z 5 ...

Page 197: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 197 Figure 6 4 3TK2821 22 23 24 30 screw type Figure 6 5 3TK2821 22 23 24 30 spring loaded ...

Page 198: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays 198 Manual 07 2016 NEB926157502000 RS AB 003 Figure 6 6 3TK2840 41 42 screw type Figure 6 7 3TK2840 41 42 spring loaded ...

Page 199: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 199 Figure 6 8 3TK2850 51 screw type Figure 6 9 3TK2850 51 spring loaded ...

Page 200: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays 200 Manual 07 2016 NEB926157502000 RS AB 003 Figure 6 10 3TK2852 screw type Figure 6 11 3TK2852 spring loaded ...

Page 201: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 201 Figure 6 12 3TK2853 screw type Figure 6 13 3TK2853 spring loaded ...

Page 202: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays 202 Manual 07 2016 NEB926157502000 RS AB 003 Figure 6 14 3TK2856 screw type Figure 6 15 3TK2856 spring loaded ...

Page 203: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays Manual 07 2016 NEB926157502000 RS AB 003 203 Figure 6 16 3TK2857 screw type Figure 6 17 3TK2857 spring loaded ...

Page 204: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays 204 Manual 07 2016 NEB926157502000 RS AB 003 ...

Page 205: ...s 19 mm x 6 mm zinc yellow 3RT1900 1DB60 3TK28 Push in lugs for screw fastening 2 are required for each device 3RP1903 3TK28 Sealable cover to secure against unauthorized operation of the setting elements 3RP1902 3TK2827 3TK2828 Sealable cover to secure against unauthorized operation of the setting elements 3TK2826 0DA00 0HA0 3TK2826 Sealable membrane to secure against operation of the setting ele...

Page 206: ...Accessories 3TK28 safety relays 206 Manual 07 2016 NEB926157502000 RS AB 003 ...

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