GLT - Guardlocking with Time-Delay Safety Relay User Manual
Contents
1. DIN Rail Mounting and Dismounting The GLT easily mounts onto 35 mm DIN Rails 35x7 5x1 mm EN 50022 35x7 5 1 Hold the top at an angle 2 Slide down until the housing catches the rail 3 Swing the bottom down and give a little push until the latch clips onto the rail Figure 4 DIN Rail Mounting DIN Rail DIN Latch Rockwell Automation Publication 440R UM010A EN P May 2015 9 Chapter2 Installation Enclosure Considerations Removal To remove the GLT use a flat blade screwdriver to pry the DIN rail latch downwards until it is in the unlatched position Then swing the module up Spacing The GLP can be mounted directly next to other GSR safety relays When the GSR Ethernet Module is used the GSR must be mounted with 10 mm of its neighboring module to maintain effective communications Maintain 50 8 mm 2 in spacing above and below the relay for adequate ventilation Removable Terminals The GLT has removable terminals to ease wiring and replacement Figure 5 Removable Terminals 1 Insert the tip of a small flat blade screwdriver into the slot near the terminal screws 2 Rotate the screwdriver to unlock the terminal block The terminal block can then be removed from the housing Most applications require installation in an industrial enclosure to reduce the effects of electrical interference and environmental exposure Pollution Degree 2 i2. et 350 ps 24V lt A GG gt Terminal S11 ov LO 24V Terminal S21 ov i l 0 575to775us 15 ms When the GLT configuration process starts from Logic Switch setting 0 the 14 24 51 and L61 outputs are pulse tested The purpose of the pulse testing is to detect short circuits to 24V to 24V common and short circuits between the output terminals The use of pulse testing allows the GLT to be used in PLe and SIL3 applications Without pulse testing the GLT can only be used in applications up to PLd and SIL2 The outputs have built in redundancy A main transistor supplies power to individual transistors for each output terminal as shown in Figure 23 Figure 23 Output Transistor Arrangement Main Transistor WON Individual Transistors wT r usa a ae Rockwell Automation Publication 440R UM010A EN P May 2015 31 Chapter 6 32 Pulse Testing Functions When pulse testing is configured start with Logic Setting 0 the outputs are tested by the main transistor and then tested individually The main transistor test pulse is 50 us wide The pulse width on terminals 14 and 24 is 350 us wide and the pulse width on terminals 51 and L61 is 200 us wide Figure 24 Output Pulse Test Width Main Transistor 14 amp 24 51 amp L61 24V Ir 24V T Tr 24V r OV OV oV 0 50 us 0 350 us 0 200 us Figure 25 Figure 27 show the pulse test pattern This pattern depends on the GLT configuration and its st
3. sng kd ken e E E Sassou ners ai 37 Response Times crarinsca dh Ned n osar d arnoa Gothen eck RELA 37 Appendix B Agency CertificationS ssssesesrsererererrrrerrr reser rer rr ere es 39 Compliance to European Union Directives ssssserserrerrrra 39 Machine Safety Directive sssseeserrserserrrererrerrr rer rara 39 SIL Rating oen e E e ad dre ra rs Na kg ee AA 40 Performance Level Category ssssesererrrerrrrerrrrrrr ere ara 40 EMC Dif ctiv ass va aa sesaoe inrita i bd ee sad ber EEE ber 40 Rockwell Automation Publication 440R UM010A EN P May 2015 Hardware Features Functions Rockwell Automation Publication 440R UM010A EN P May 2015 Chapter 1 Overview Figure 1 GLT Relay S12 22 B2 54 At A2 S 11 21 PWRFauk L12 Ltt Y32544 M4 24 St e The GLT is a Guard Locking with Time delay safety relay that is designed to use time delayed outputs for use in Stop Category 1 and to unlock a safety gate when the time expires It also provides a lock command to lock a safety gate before the starting of the hazard The GLT can be operated with other safety relays in the GSR family by use of the single wire safety connection When GLT receives a single wire safety signal from other GSR relays the GLT issues an Unlock command When the GLT turns ON its safety output it also turns ON its single wire safety output for use by other GSR safety relays The GLT can be configured to operate in one of two types
4. 13 In some safety system applications the reset signal also serves as a monitoring function For example when the safety outputs are driving safety contactors the normally closed contacts of the safety contactors should be connected in series with lock and reset circuit The lock and reset request is connected to Terminal 44 Figure 13 Lock Request Wiring 24V DC Momentary Ps Normally Open PLC Output 4 Push Button 1756 OB16 1769 OB8 1746 OB4 D Contactor 1734 OB2 D Monitoring 1793 OB4 24V DC Com The GLT is designed to ignore incidental actuations or stuck conditions on the Lock and Unlock inputs The lock and unlock signals must be actuated for a duration of 0 25 3 seconds The GLT ignores signals durations that are too short or too long Figure 14 Required Signal Duration 24V DC 250ms to 3000ms 24V DC Com The retriggerable input is either left open for non retriggerable operation or connected directly to the 24V DC supply for retriggerable operation During configuration GLT reads the status of the input to determine whether to apply the function to the safeguarding input The retriggerable input only works with Logic Setting 5 6 7 and 8 Retriggerable operation is often used when long delay times are configured in the GLT Rockwell Automation Publication 440R UM010A EN P May 2015 Power Ground and Wiring Chapter 3 When terminal B2 is not connected to 24V DC the safeguardin
5. 2 5 6 7 8 Delayed Safety Output Channel 2 Logic Setting 3 4 Grounding the Controller There are no special grounding requirements Terminal A2 must be connected to the common of a 24V supply 14 Rockwell Automation Publication 440R UM010A EN P May 2015 Connecting a Power Supply Safety Devices Power Ground and Wiring Chapter 3 Power for the GLT must be provided by an external 24V DC power supply source To comply with the CE Low Voltage Directive LVD the GLT must be powered by a DC source compliant with Safety Extra Low Voltage SELV or Protected Extra Low Voltage PELV The following Rockwell Automation Bulletin 1606 power supplies are SELV and PELV compliant e 1606 XLP30E e 1606 XLPS0OE e 1606 XLP50EZ e 1606 XLP72E e 1606 XLP9ISE e 1606 XLDNET4 e 1606 XLSDNET4 Figure 7 Power Supply Connections Connect 24V DC to Terminal A1 24V Common to Terminal A2 Safety Devices with Mechanical Contacts Input devices with mechanical contact outputs such as emergency stop buttons and tongue interlock switches use both a safety input terminal and a test pulse output terminal When safety devices are connected via test outputs to an input circuit on the GLT relay wire length should be 100 m 300 ft or less For the lowest risk levels a single channel can be used by the input device As shown in Figure 8 one side of the contact is connected to 11 or 21 The other side of
6. High Side High Side Yes Yes or 440G LZ or E Stop function 2times Standard Guardlocking Switch e g High Side Low Side Yes No TLS3 GD2 3times Next Generation Guardlocking Switch No Function LogicLink Yes No 26 Rockwell Automation Publication 440R UM010A EN P May 2015 LEDs During Power Up LEDs During Normal Operation LEDs During Diagnostics Chapter 5 Diagnostic LEDs and Troubleshooting The GLT has five LED indicators to provide operating status and diagnostic information During power up the LEDs turn ON and OFF during their self check process The self check takes about 3 seconds Table 6 Normal Operation LEDs LED Indicator PWR FAULT State Description Solid Green Normal operation Blinking Red See LEDs During Diagnostics for possible faults Correct fault and cycle power Green with Blinking Red See LEDs During Diagnostics for possible faults Correct fault and press reset IN ON Input circuits at 12 and 22 are closed OFF Input circuits at 12 and 22 are open 51 L61 ON Gate is locked OFF Gate is unlocked Blinking Timing cycle has started LOGIC IN ON Logic IN signal at L12 is active OFF Logic IN signal at L12 is OFF OUT ON L11 is active and 14 24 are ON Y32 is ON OFF Outputs are OFF Blinking Waiting for reset signal or timing cycle has started Diagnostics are indicated by the flashing of the LED indicators The PWR Fault indica
7. Power Consumption 2W Fuse 4A gG slow blow Case Material Polyamide PA 6 6 Terminal Protection IP20 Enclosure Protection IP40 NEMA 1 Operating Temperature 5 455 C 23 131 F Relative Humidity 90 Vibration 10 55 Hz 0 35 mm Shock 10 g 16 ms Pollution Level 2 Rockwell Automation Publication 440R UM010A EN P May 2015 33 AppendixA Specifications Inputs IN1 Lock Unlock Request 34 Input Signals Active High 12 22 Input Simultaneity Infinite ON Voltage Max 26 4V ON Voltage Min 11V OFF Voltage Max 5V OFF Current Max 2mA ON Current Max at 24 VDC 11mA ON Current Max at 26 4 VDC 11 1mA Galvanic Isolation 1 0 from Logic No Overvoltage Protection Yes Test Out Pulse Duration 700 ps Test Out Pulse Period 17 ms Off Pulse accepted for OSSD setting Min 0 ps without declaring the input as OFF Max 700 ps Reverse Voltage Protection Yes Input Capacitance 10 nF Input Signals Active High 44 54 ON Voltage Max 26 4V ON Voltage Min 11V OFF Voltage Max 5V OFF Current Max 2mA ON Current Max at 24 VDC 11 mA ON Current Max at 26 4 VDC 11 1mA Galvanic Isolation 1 0 from Logic No Overvoltage Protection Yes Input Capacitance 10 nF Duration 0 5 3 05 Rockwell Automation Publication 440R UM010A EN P May 2015 Retrigger Outputs Specifications Appendix A Input Signa
8. The configuration switches are multi position switches with a limited rotation Figure 20 Configuration Switch Adjustment Mechanical Stops Rotate along arrow IMPORTANT Adjust the switches gently and do not turn past the mechanical stops 24 Rockwell Automation Publication 440R UM010A EN P May 2015 Configuration Process Configuration Chapter 4 Configuration is a five step process The process requires the wiring to the GLT to be completed During the configuration process GLT sends out test pulses to determine how it is wired and then configures the internal parameters to match the application Five Step Configuration The GLT is configured in five steps With the power OFF set the Logic switch to either 0 or 9 Apply power Adjust the Logic Range and Time switches Verify the settings by counting the blink rates of the LEDs A ob WY N Cycle the power to store the settings Configuration Details 1 The GLT sends out signals during the configuration process so the wiring must be complete Set the Logic switch to e Oifyou want pulse testing active on terminals 14 and 24 e 9 if you want pulse testing deactivated 2 Power up the module The PWR Fault LED flashes red continuously The prior configuration in the EEPROM is erased and the device now prepared for a new configuration 3 Set the Logic Range and Time switch settings for your application After 500 ms the new configuration param
9. Y32 Unlock Request 54 32 ms 27 ms 32 ms Single Wire Safety Input L12 48 ms 48 ms 49 ms 37 ms 35 ms 38 ms Safety Inputs S12 22 68 ms 61 ms 70 ms 55 ms 51ms 57 ms Rockwell Automation Publication 440R UM010A EN P May 2015 37 AppendixA Specifications Notes 38 Rockwell Automation Publication 440R UM010A EN P May 2015 Agency Certifications Compliance to European Union Directives Appendix B Regulatory Approvals e UL Listed Industrial Control Equipment certified for US and Canada e CE marked for all applicable directives e C Tick marked for all applicable acts e CCC Mark e S Mark This product has the CE mark and is approved for installation within the European Union and EEA regions It has been designed and tested to meet the following directives Machine Safety Directive This product is designed and tested to meet the European Council Directive 2006 42 EC on machinery and the following standards e IEC EN 61508 Functional safety of electrical electronic programmable electronic safety related systems e IEC EN 62061 Safety of machinery Functional safety of safety related electrical electronic and programmable electronic control systems e ENISO 13849 1 Safety of machinery Safety related parts of control systems Part 1 General principles for design This product is intended for use in an industrial environment The performance of the safety function is dependent on the structure of all devices
10. of safety functions both of which involve time delayed safety signals Function 1 Guardlocking Function 1 is used for guardlocking applications During production the safety gate is locked in the closed position by a guardlocking interlock To request access through the safety gate the operator presses the Unlock Request button The GLT initiates a stop and unlocks the safety gate after the time expires Chapter 1 Overview Function 2 E stop Function 2 is used for emergency stop applications The production process requires an orderly shutdown Some processes must be stopped immediately and some must be stopped shortly thereafter To initiate the stop the operator presses an E stop button The GLT initiates an immediate stop command followed by a delayed stop command Figure 2 shows some of the key hardware features of the GLT Figure 2 GLT Hardware Details 8 Removable Terminals ________ Neen 12 22 B2 54 At A2 S 11S21 PwRIFaum Nt 5 Indicator LEDs sus 3 Multi position Rotary Configuration Switches 9 8 55 GLT L12 Uti Y2 See M 24 51 L6t 8 Removable Terminals 8 Rockwell Automation Publication 440R UM010A EN P May 2015 Mounting Dimensions Chapter 2 Installation Figure 3 Approximate Dimensions mm in 22 5 0 88 113 6 4 47 Ceca SS ONONO O K 3 I O O 119 14 O o 4 69 O m
11. Fault Terminal 24 9 Terminal L61 10 Terminal 51 1 SPI Fault 12 L11 Fault 13 Guardlocking system is different from EPROM 14 Configuration switch es is different from EPROM 15 EPROM fault 17 Compare state fault 22 Cross fault 23 Wiring at B2 is different from EPROM 24 Input is open when gate is locked 25 Switch overflow 30 S12 fault 31 S22 fault 32 Main transistor fault 33 Overvoltage 34 S44 or 54 fault Rockwell Automation Publication 440R UM010A EN P May 2015 29 Chapter5 Diagnostic LEDs and Troubleshooting Notes 30 Rockwell Automation Publication 440R UM010A EN P May 2015 Pulse Testing For Inputs Pulse Testing of Outputs Chapter 6 Pulse Testing Functions Pulse testing for the inputs is always active The pulses are generated at terminals S11 and S21 These test pulses should be used with devices that have mechanical contacts S11 is typically connected to one contact and the other side of the contact is connected to 12 S21 is typically connected to the second contact and the other side of the second contact is connected to 22 The test pulses are used by the GLT to detect three short circuit conditions 1 Between the input terminals and 24V 2 Between the input terminals and 24V common 3 Between the two input terminals Figure 22 shows the timings of the two test pulses The pulse on 21 occurs shortly after 11 The pulses are repeated every 15 ms Figure 22 Pulse Test Signals
12. User Manual Original Instructions Allen Bradley GLT Guard Locking with Time Delay Safety Relay Catalog Number 440R GL2S2T Allen Bradley Rockwell Software Automation Important User Information Read this document and the documents listed in the additional resources section about installation configuration and operation of this equipment before you install configure operate or maintain this product Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes laws and standards Activities including installation adjustments putting into service use assembly disassembly and maintenance are required to be carried out by suitably trained personnel in accordance with applicable code of practice If this equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired In no event will Rockwell Automation Inc be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment The examples and diagrams in this manual are included solely for illustrative purposes Because of the many variables and requirements associated with any particular installation Rockwell Automation Inc cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Rockwell Automation Inc with
13. at 0 Stop Logic IN OR IN1 2 7 oe ae OFF F Logic IN ANDINI 3 Cat 1 Stop Logic IN OR IN1 4 a sre of Logic IN AND IN1 Y32 immediate OFF Function 2 E stop Applications 5 Manual monitored 14 24 L11 Y32 immediate OFF Logic IN OFF OR IN1 6 51 L61 delayed ON Logic IN AND IN1 7 Auto reset 14 24 L11 Y32 immediate OFF Logic IN OFF OR IN1 8 31 L61 delayed ON Logic IN AND IN1 ATTENTION When the GLT is configured for settings 5 or 7 and an E stop device is connected to IN1 there must be no connection to the Logic IN terminal L12 E stops must be available at all times and cannot be bypassed or muted with OR logic Rockwell Automation Publication 440R UM010A EN P May 2015 23 Chapter4 Configuration Range Switch Setting The Range switch sets the maximum time for the delay The range is then adjusted by the Time switch setting Table 3 Range Switch Setting 1 1s 6 1min 2 3s 7 3 min 3 5s 8 10 min 4 10s 9 30 min 1 To use the Range setting of zero the Time setting must be set to something other than 1 Time Switch Setting The Time switch sets the adjustment to the Range Table 4 Time Switch Setting 7 e amp o 2 20 7 70 3 30 8 80 4 40 9 90 5 50 10 100 EXAMPLE With the Range set to 4 and Time set to 4 the delay is 10 seconds x 40 100 4 seconds Configuration Switches Use a small slotted screwdriver to set the switches to the desired setting
14. ate Figure 25 shows the pulse pattern for E stop configurations The pattern is repeated every 3750 ms Figure 25 Output Pulse Test Pattern for E stop Functions Terminal 24V 14 ov 24V 24 ov 24V 51 ov 24V L61 ov 0 145 220 290 439 585 2345 2487 3750 Approximate Time ms Figure 26 shows the pulse test pattern on 51 and L61 when the GLT is configured as two high side outputs The pattern is repeated every 2639 ms Figure 26 Output Pulse Test Pattern for Two High Side Guardlocking Terminal 24y 51 ov L61 24V pA RE ov 0 154 1649 1753 2639 2793 4287 4391 Approximate Time ms Figure 27 shows the pulse test pattern on 51 and L61 when the GLT is configured as a high side low side outputs Terminal 51 is referenced to L61 not 24V common The pattern is repeated every 2639 ms Figure 27 Output Pulse Test Pattern for High Low Side Guardlocking Terminal M U UUU TT L61 0 154 925 1132 1339 1545 2639 2793 3564 Approximate Time ms Rockwell Automation Publication 440R UM010A EN P May 2015 General Environmental Specifications Dimensions W x H x D Appendix A 22 5 x 119 14 x 113 6 mm 0 88 x 4 69 x 4 47 in Shipping Weight approx 150 g 0 33 Ib Wire Size 0 2 2 5 mm 24 14 AWG Wiring Category Copper that withstands 75 C 167 F Terminal Screw Torque 0 4 Nem 4 Ibein Power Supply Voltage Range 24V DC PELV SELV 0 85 1 1x rated voltage
15. ate Leakage Current Max lt 0 1 mA Short Circuit Protection Yes Output Signals Y32 Continuous Output Current Max 50 mA ON State Voltage Drop P S to 0 2V Max Surge Output Current Max 700 mA Surge Output Current Duration Max Sms Load Capacitance Max Off State Leakage Current Max lt 0 1 mA Short Circuit Detection No Short Circuit Protection Yes Galvanic Isolation 1 0 from Logic No Input Signals L12 ON Voltage Max 26 4V ON Voltage Min 11V OFF Voltage Max 5V OFF Current Max 2 mA ON Current Max at 24 VDC 11 mA ON Current Max at 26 4 VDC 11 1 mA Galvanic Isolation 1 0 from Logic No Overvoltage Protection Yes Reverse Voltage Protection Yes Input Capacitance 10 nF Rockwell Automation Publication 440R UM010A EN P May 2015 Single Wire Safety Output Signal Recovery Times Response Times Specifications Appendix A Output Signals L11 Continuous Output Current Max 50 mA ON State Voltage Drop P S to 0 2V Max Surge Output Current Max 700 mA Surge Output Current Duration Max Sms Max Load Capacitance 1 pF Off State Leakage Current Max lt 0 1 mA Short Circuit Detection No Short Circuit Protection Yes Galvanic Isolation 1 0 from Logic No Logic1 4 Logic5 8 14 24 L11 Cat 1 32 14 4 L11 Cat1 Y32 Reset S44 26 ms 26 ms 23 ms 27 ms 28 ms 25 ms Logic1 4 Logic5 8 14 24 L11 Cat 1 Y32 14 4 L11 Cat1
16. ccommodate copper wire with size from 0 2 mm 24 AWG to 2 5 mm 14 AWG Use copper that withstands 60 75 C Terminal Torque Terminals should be torqued to 0 4 Nem 4 lbein Rockwell Automation Publication 440R UM010A EN P May 2015 13 Chapter3 Power Ground and Wiring Terminal Assignments Some terminals are designed to have one specific function Some terminals can perform multiple functions these terminals must be configured during a power up routine Figure 6 Terminal Identification 12 22 B2 S54 A1 A2 S11 521 PWR Fault INT 51 L61 Logic IN OUT oo0o0 0 L12 L11 Y32 44 14 24 51 L61 Table 1 Terminal Function Terminal Function Al 24V Supply A2 24V Common 11 Safety Test Pulse Output for Channel 1 21 Safety Test Pulse Output for Channel 2 12 Safety Input for Channel 1 22 Safety Input for Channel 2 S44 Reset and Lock Request Input 54 Guardlocking Unlock Request Input Y32 Auxiliary Nonsafety Output L11 Single Wire Safety Output L12 Single Wire Safety Input B2 Retriggerable Input 51 Guardlocking Solenoid or Delayed Safety Output Channel 1 L61 Guardlocking Solenoid or Delayed Safety Output Channel 2 14 Immediate Safety Output Channel 1 Logic Setting 1 2 5 6 7 8 Delayed Safety Output Channel 1 Logic Setting 3 4 24 Immediate Safety Output Channel 2 Logic Setting 1
17. e expired Open the safety input for the full time cycle Or connect B2 to 24V and reconfigure the GLT for retriggerable inputs Green with Flashing red 5 times The gate appears open when it supposed to be closed and locked The IN1 indicator is OFF input signals are corrupt The 51 L61 indicator is ON gate should be locked Possible fault conditions Gate is open Open circuit on 12 Open circuit on 22 Short from 12 to 22 Short from 12 or 22 to 24V DC Short from 12 or 22 to 24V Common Check the voltage at terminals 12 and 22 Both should have 24V DC Correct the fault Press Reset to clear the flashing red indication Press Reset again to turn the outputs ON Cycle both input signals or cycle power to return the GLT to an operational state Flashing red 2 times Upon power up one or more of the rotary switch settings do not agree the value stored in the EEPROM Return the switches to their originally configured settings and cycle power or reconfigure the GLT Flashing red 5 times IN1 is flashing 12 times Short circuit fault on terminal L11 to 24V e Short circuit fault on terminal L11 to ground e With OSSD Guardlocking or E stop function Short circuit fault on terminal 51 to ground Correct the fault and cycle power to the GLT Flashing red 6 times IN1 is flashing 7 times Short circuit fault on terminal 14 to ground or Short circuit fault on terminal 24 to 24V wit
18. er 51 or L61 Note The 440G MT solenoid cannot be connected directly to the GLT as it draws too much current an interposing relay is required Figure 17 TLS Z and 440G LZ Solenoid Connections 24V DC 440G LZ 24V DC Com When connecting to the TLS Z or 440G LZ the solenoid signal must be connected to terminal 51 Terminal L61 can also be used to drive a relay When multiple guards solenoids must be unlocked simultaneously a safety control relay can be connected between terminal 51 and L61 or two separate safety control relays can be connected to 51 and L61 A diode suppressor should be connected in parallel across the coil Figure 18 Interposing Relay Connections 24V DC 24V DC Com Rockwell Automation Publication 440R UM010A EN P May 2015 Use Surge Suppressors Power Ground and Wiring Chapter 3 Because of the potentially high current surges that occur when switching inductive load devices such as motor starters and solenoids the use of some type of surge suppression to protect and extend the operating life of the controllers output is required By adding a suppression device directly across the coil of an inductive device you prolong the life of the outputs You also reduce the effects of voltage transients and electrical noise from radiating into adjacent systems The following diagram shows an output with a suppression device We recommend that you locate the suppression device as close as
19. eters are acknowledged After 300 ms the new parameter is stored in the EEPROM the power LED is solid green TIP You can change or readjust the switch settings during Step 3 and 4 The power LED will flash red again momentarily 4 Verify the settings The LEDs flash for 0 5 second to indicate the switch setting The number of flashes is equal to the switch setting The blinking repeats after a 2 second pause Rockwell Automation Publication 440R UM010A EN P May 2015 25 Chapter 4 Configuration Figure 21 Example of the LEDs flashing during Configuration Mode IN1 Indicates the LOGIC Switch is set to 3 0 5s 4 2s Flash Pause 51 L61 Indicates the RANGE Switch is set to 4 EEEN NEEE EEEE Logic IN Indicates the TIME switch is set to 1 NNNNNNNNEN KNNNNNNNEN CACCRCRRNI OUT Indicates the solenoid connection to Guardlocking Switch with OSSD outputs BT ET 5 Cycle the power to the GLT After power up the current switch settings are compared to the values in the EEPROM and the input and output circuits are checked Upon successful completion of the internal checks the GLT is ready for operation The OUT LED indicates the type of connection that is made to terminals 51 and L61 Table 5 shows the conditions for the OUT LED blink rates Table 5 OUT LED Blink Rates OUTLED Guardlocking Switch 51 L61 Guardlocking E Stop Blinks Function Function 1time OSSD Guardlocking switch e g TLS ZR
20. g input device must be held open for the full duration of the timed delay cycle If the input device is reclosed during the timing cycle the PWR Fault indicator is green with five red flashes To clear the fault indication cycle the input device OFF then ON after the completion of the timing cycle When terminal B2 is connected to 24V DC the safeguarding input device can be closed before the full duration of the timed delay cycle and this action resets the timer When the input is reclosed during the timing cycle the immediate outputs turn back ON immediately resetting of an interlocking safequard or E stop device shall not initiate i WARNING The machine designer user must confirm that the reclosing or hazardous machine operation Figure 15 Retriggerable Input Wiring 24V DC 24V DC Com Rockwell Automation Publication 440R UM010A EN P May 2015 19 Chapter3 Power Ground and Wiring Outputs 20 Terminals 51 and L61 are the time delayed safety outputs They can be configured for two different functions 1 Direct connection to the solenoid of a guardlocking interlock or 2 Direct connection to other time delayed safeguarding devices The function is determined during the configuration process Figure 16 TLS1 2 and 3 Solenoid Connections Safety Gate When using the TLS1 2 or 3 the solenoid connections can be reversed A1 can be connected to 51 or L61 and A2 can be connected to eith
21. h pulse testing IN1 is flashing 8 times Short circuit fault on terminal 24 to ground or Short circuit fault on terminal 24 to 24V with pulse testing or Short circuit fault from terminal 14 to terminal 24 with pulse testing Correct the fault and cycle power to the GLT Flashing red 9 times IN1 is flashing 9 times e Short circuit from terminal 51 to L61 e Open circuit on terminal 51 or L61 IN1 is flashing 10 times e Short circuit fault on terminal 51 or L61 to ground or e Short circuit fault on terminal 51 or L61 to 24V Correct the fault and cycle the power to the GLT Flashing red 10 times IN1 is flashing 33 times The supply voltage exceeded 26 4V DC Overvoltage Correct the power supply and cycle the power 28 Rockwell Automation Publication 440R UM010A EN P May 2015 Additional Diagnostics Diagnostic LEDs and Troubleshooting Chapter 5 The IN1 Indicator LED flashes additional information regarding faults that are detected by the GLT Table 8 provides a description of the fault for each of the flash rates You should inspect wiring measure the voltages waveforms at the respective terminals check the configuration switches and if necessary report the fault to the factory Table 8 Flash Rate Fault Description Flashes Description 0 No fault 5 11 Pulse Test Fault 6 21 Pulse Test Fault 7 OSSD1 Fault Terminal 14 8 OSSD2
22. its products At http www rockwellautomation com support you can find technical and application notes sample code and links to software service packs You can also visit our Support Center at https rockwellautomation custhelp com for software updates support chats and forums technical information FAQs and to sign up for product notification updates In addition we offer multiple support programs for installation configuration and troubleshooting For more information contact your local distributor or Rockwell Automation representative or visit http www rockwellautomation com services online phone Installation Assistance If you experience a problem within the first 24 hours of installation review the information that is contained in this manual You can contact Customer Support for initial help in getting your product up and running United States or Canada 1 440 646 3434 Outside United States or Canada Use the Worldwide Locator at http www rockwellautomation com rockwellautomation support overview page or contact your local Rockwell Automation representative New Product Satisfaction Return Rockwell Automation tests all of its products to help verify that they are fully operational when shipped from the manufacturing facility However if your product is not functioning and needs to be returned follow these procedures United States Contact your distributor You must provide a Customer Support case n
23. l Active High B2 ON Voltage Max 26 4V ON Voltage Min 11V OFF Voltage Max 5V OFF Current Max 2 mA ON Current Max at 24 VDC 11 mA ON Current Max at 26 4 VDC 11 1 mA Galvanic Isolation 1 0 from Logic No Overvoltage Protection Yes Input Capacitance 10 nF Number of Outputs 4 Output Signals Active High 11 521 14 and 24 Continuous Output Current 0 5A Aggregate Current of Outputs per 1 8A Module Max Surge Output Current Max 15A Surge Output Current Duration Max Sms Residual Voltage Drop from Power 0 2V Supply Max Max Load Capacitance 1 pF Off State Leakage Current Max lt 0 1 mA Short Circuit Protection Yes Galvanic Isolation 1 0 from Logic No Pulse Test Duration lt 700 ps Pulse Test Period lt 13000 ms less than 15 s Maximum Resistance for the Auto 10k Detection of a Coil Maximum Resistance for the Auto 10k Detection of an LL Device Rockwell Automation Publication 440R UM010A EN P May 2015 35 AppendixA Specifications Lock Unlock Signals Auxiliary Signal Single Wire Safety Input Signal 36 Output Signals 51 amp L61 Continuous Output Current Max 0 3A High Side Voltage Max 26 4V High Side Voltage Min 15V Low Side Voltage Max 3V Surge Output Current Max 3A Surge Output Current Duration Max 10 ps Load Capacitance Max 1 pF Off St
24. n Wiring and Grounding Guidelines Provides general guidelines for installing a publication 1770 4 1 Rockwell Automation industrial system Product Certifications website http www ab com Provides declarations of conformity certificates and other certification details Allen Bradley Industrial Automation Glossary AG 7 1 A glossary of industrial automation terms and abbreviations You can view or download publications at http www rockwellautomation com literature To order paper copies of technical documentation contact your local Allen Bradley distributor or Rockwell Automation sales representative Rockwell Automation Publication 440R UM010A EN P May 2015 3 Preface Definitions Publication AG 7 1 contains a glossary of terms and abbreviations that are used by Rockwell Automation to describe industrial automation systems Below is a list of specific terms and abbreviations that are used in this manual N C Normally Closed An electrical contact whose normal state i e no pressure or electrical potential applied is in the closed position N O Normally Open An electrical contact whose normal state i e no pressure or electrical potential applied is in the open position Reaction Time Describes the time between the true states of one input to the ON state of the output Recovery Time Describes the time that is required for the input to be in the LO state before returning to the HI state Res
25. o not use the pulse test outputs These devices must have a common power supply reference with the GLT Figure 11 Connections to Device with OSSD Outputs 24V DC fe S21 440G LZ GLT S12 S22 A2 Q O O 24V DC Com IMPORTANT Both devices must have the same power supply reference TIP 0SSD1 can be connected to either 12 or 22 and OSSD2 can be connected to either 12 or 22 When using the TLS ZR and 440G LZ the maximum safety performance rating is Cat 4 PLe and SIL CL3 The Unlock Request Input can be connected to the 24V supply through a momentary normally open push button switch or to a 24V sourcing output of a PLC where the PLC turns the request ON or OFF Some examples of Rockwell Automation PLC output modules are shown in Figure 12 The unlock request is connected to Terminal 54 Figure 12 Unlock Request Wiring 24V DC Push Button Processor 1756 OB16 1769 OB8 1746 OB4 1734 OB2 1793 OB4 Momentary Normally Open PLC Output PLC 4 24V DC Com Rockwell Automation Publication 440R UM010A EN P May 2015 17 Chapter3 Power Ground and Wiring Lock and Reset Request Input Lock and Unlock Signals Retriggerable Input The Lock and Reset Input can be connected to the 24V supply through a momentary normally open push button switch or to a 24V sourcing output of a PLC where the PLC turns the request ON or OFF Some examples of Rockwell Automation PLC output modules are shown in Figure
26. ponse Time Describes the time between the trigger of one input to the OFF state of the output OSSD Output Signal Switching Device This is typically a pair of solid state signals that are pulled up to the DC source supply The signals are tested for short circuits to the DC power supply short circuits to the DC common and shorts circuits between the two signals Single Wire Safety SWS This is unique safety rated signal that is sent over one wire to indicate a safety status The SWS can be used in Category 4 Rockwell Automation Publication 440R UM010A EN P May 2015 Preface Overview Installation Power Ground and Wiring Configuration Table of Contents Important User Information cess yee nee tease eer ete ae 2 Who Should Use This Manual sssesesererrrsrrrserrerrerrrr rer rr 3 Purpose of this Manual sseseesererrrrrsrrerrrerrrrrr rer rese ra 3 Additional Resources enrian bib ade sons NE EE E EE 3 Definitions a ana Poh e eA i Meg EOE e eel elk lg 4 Chapter 1 Hardware Features e oneei sok Sates Penal nh ne R de Laue ain ood 7 FINE EL IS MRE Yoh oh ans atte e LO al NUN EN ole thee Atel RR 7 Function 1 Guard ocking sssssessrsreserrrrerr reser re rer ces 7 Function 2 E StOpin anne sl bass de asketer 8 Chapter2 Mounting Dimensions s ssseeeeerererrrrrrerrrrr ere rr rer rr rer rr rna 9 DIN Rail Mounting and Dismounting sssrsersererserer rea 9 Removable Terminals s sseeseesersrrsers
27. possible to the load device Since the outputs are 24V DC we recommend 1N4001 SOV reverse voltage to 1N4007 1000V reverse voltage diodes for surge suppression for the OSSD safety outputs as shown in Figure 19 The diode should be connected as close as possible to the load coil Figure 19 Surge Suppression 24V DC Al GLT 14 24 51 L61 a2 O O O 24V DC Com Example suppressors include e 100 FSD250 for legacy Bulletin 100S Contactors e 100S C EJ contactors have built in suppression e 1492 LD4DF terminal block with built in 1N4007 diode e 700 ADLIR is diode for 700 HPSXZ24 positive guided relay Rockwell Automation Publication 440R UM010A EN P May 2015 21 Chapter3 Power Ground and Wiring Notes 22 Rockwell Automation Publication 440R UM010A EN P May 2015 Logic Switch Settings Configuration Chapter 4 The Logic switch determines the operating function of the GLT and is used to set the configuration If only the Range or Time setting must be changed the configuration process must start by setting the Logic switch to 0 or 9 when power is off Table 2 Logic Switch Setting Switch 1 Lock Unlock Demand Safety Inputs Setting Configuration 0 Program mode Pulse testing activated on terminals 14 24 51 and L61 9 Program mode Pulse testing deactivated on terminals 14 24 51 and L61 Function 1 Guardlocking Applications 1 Manual monitored C
28. r Personal Protective Equipment PPE Follow ALL Regulatory requirements for safe work practices and for Personal Protective Equipment PPE gt gt gt Allen Bradley Rockwell Software and Rockwell Automation are trademarks of Rockwell Automation Inc Trademarks not belonging to Rockwell Automation are property of their respective companies Preface Read this preface to familiarize yourself with the rest of the manual It provides information concerning e who should use this manual e the purpose of this manual e related documentation e conventions that are used in this manual Who Should Use This Manual Use this manual if you are responsible for designing installing programming or troubleshooting control systems that use the GLT safety relay You should have a basic understanding of electrical circuitry and familiarity with safety related control systems If you do not obtain the proper training before using this product Pu rpose of this Manual This manual is a reference guide for the GLT time delay safety relay and accessories It describes the procedures that you use to install wire and troubleshoot your controller This manual e explains how to install and wire your safety relay e gives an overview of the GLT safety relay performance Additional Resources These documents contain additional information concerning related products from Rockwell Automation Resource Description Industrial Automatio
29. respect to use of information circuits equipment or software described in this manual Reproduction of the contents of this manual in whole or in part without written permission of Rockwell Automation Inc is prohibited Throughout this manual when necessary we use notes to make you aware of safety considerations WARNING Identifies information about practices or circumstances that can cause an explosion in a hazardous environment which may lead to personal injury or death property damage or economic loss ATTENTION Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attentions help you identify a hazard avoid a hazard and recognize the consequence gt gt IMPORTANT Identifies information that is critical for successful application and understanding of the product Labels may also be on or inside the equipment to provide specific precautions SHOCK HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that dangerous voltage may be present BURN HAZARD Labels may be on or inside the equipment for example a drive or motor to alert people that surfaces may reach dangerous temperatures ARC FLASH HAZARD Labels may be on or inside the equipment for example a motor control center to alert people to potential Arc Flash Arc Flash will cause severe injury or death Wear prope
30. rrererrrrrrrr ere rer rer ers sce 25 Five Step Configuration ssssssesersrrrrrerererrrrrr ere rata 25 Configuration Details ssssssserserrrrrrrrrerrrr rer rr ere rar 25 Rockwell Automation Publication 440R UM010A EN P May 2015 5 Table of Contents Diagnostic LEDs and Troubleshooting Pulse Testing Functions Specifications Regulatory Approvals Chapter 5 LEDs During Power pidiis eink es bola idee beh rr ra 27 LEDs During Normal Operation s sssesessrrrrrrerrrerer rr rests 27 LEDs During Diagnostics s 635000 1495 cine peed imbaes ti rr reser ra 27 Additional Diagnostics sssssesrrrerrrrrrrrrrrrrrrrr reser ere rea 29 Chapter 6 Pulse Testing Por Inputs 22 053 san gy ae rina nedaaendashees eee reser 31 Pulse Testing of Outputs sssrerererrsrrrrrererrrrrrr reser renee 31 Appendix A General pases as Sh a a Oh 5S aah ee ceed te a8 os canes 33 Enyironmental eiser oenen eaer EEEE EEE RNE were EE enki 33 PUPS INI oo nce E lossar nn a e E E a a E EEN 34 Lock Unlock Request 2224s titers fois a eae 34 Retrigget 1 ovis miweeda phat sexi big ADE ed caer enue wale ae 35 OEE Stent es articles ed eats Da Ske ABN SEDER ea een aie E 35 Lock Unlock Signals sc sctGs5 cas ous cher eas sosse a oe 36 Avu liary OA Sal haen sists nid sier ais den wa Porras AEE E SKR BN 36 Single Wire Safety Input Signal sssssessessrsererrrrrrerere rr er rea 36 Single Wire Safety Output Signal ssssssersererrrrrrr reser rer rra 37 Recovery LIMES
31. rrrrrrerre ere rara 10 Enclosure Considerations sseeseresrrrrrsrrrrrrrrrrrrrrrrr ra 10 Preventing Excessive Heat s ssssseseeserrrrererrrrrrerrrrrrr reser ve 11 Chapter3 Wiring Requirements and Recommendation sssreseserrerera 13 Wire SIZE tesni nonea iea ea ceed pawn an AR E EER AEREE 13 Terminal FORQUES sw5s os0ewn ren naea anes EE R EEEE 13 Terminal Assignments sssssesesrrrrrrrrerrrrrrr reser rer rss 14 Grounding the Controller sssssesrsrererr reser reser reser isons 14 Connecting a Power Supply sssseseerserererrrrerererrrrr rr rr ra 15 Safety Devicesin acdan Sed sedd ed Gh eye ee 15 Safety Devices with Mechanical Contacts ssesersers re 15 Safety Devices with OSSD Outputs 0s eee eee ee eee 17 Unlock Request Inputs orere i ede iene E EEE EE ne 17 Lock and Reset Request Input sseesersresersersrrserrrrrrr ra 18 Lock and Unlock Signals ssssssrsersererrrrrrrrrrrrr rer ere renen a 18 Retriggerable Input sssssssesrsrserrrrererrrrrr ere rese rr ers rr rara 18 Outputs aaa Pape uate se spe AUS heh Eda bee KN Neda Ae la EN 20 Use Surge SUpPIrESSOTS pny ehri h a ssa atu ahaa EEEE E 21 Chapter 4 Logic Switch SettilgS sssesersrrrrererrrerrrrrrrer rer rer rerna 23 Range Switch Setting s 5 svesiese iin coercion se ENEE rs 24 Time Switch Setting eeo Ersa d by ate Have br ET dr EREE 24 Configuration Switches sseseserrerrsrrrrrererrrrrrr reser rer rss 24 Configuration ProCesS ssessesrsersr
32. s an environment where normally only non conductive pollution occurs except that occasionally temporary conductivity that is caused by condensation can be expected Overvoltage Category II is the load level section of the electrical distribution system At this level transient voltages are controlled and do not exceed the impulse voltage capability of the products insulation This equipment is intended for use in a Pollution Degree 2 industrial environment in overvoltage Category II applications as defined in IEC 60664 1 at altitudes up to 2000 m 6562 ft without derating This equipment is considered Group 1 Class A industrial equipment according to IEC CISPR 11 Without appropriate precautions there may be difficulties with electromagnetic compatibility in residential and other environments due to conducted and radiated disturbances This equipment is supplied as open type equipment It must be mounted within an enclosure that is suitably designed for those specific environmental conditions Rockwell Automation Publication 440R UM010A EN P May 2015 Preventing Excessive Heat Installation Chapter 2 that are present and appropriately designed to prevent personal injury resulting from accessibility to live parts The enclosure must have suitable flame retardant properties to prevent or minimize the spread of flame complying with a flame spread rating of SVA V2 V1 VO or equivalent if non metallic The interior of the enclosure mus
33. t be accessible only by the use of a tool Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications In addition to this publication see e Industrial Automation Wiring and Grounding Guidelines Rockwell Automation publication 1770 4 1 for additional installation requirements e NEMA Standard 250 and IEC 60529 as applicable for explanations of the degrees of protection that is provided by different types of enclosure For most applications normal convective cooling keeps the relay within the specified operating range Verify that the specified temperature range is maintained Proper spacing of components within an enclosure is usually sufficient for heat dissipation In some applications a substantial amount of heat is produced by other equipment inside or outside the enclosure In this case place blower fans inside the enclosure to help with air circulation and to reduce hot spots near the controller Additional cooling provisions might be necessary when high ambient temperatures are encountered Do not bring in unfiltered outside air Place the controller in an enclosure to protect it from a corrosive atmosphere Harmful contaminants or dirt could cause improper operation or damage to components In extreme cases you may need to use air conditioning to protect against heat buildup within the enclos
34. that comprise the safety function The following two tables provide the data that must be used to represent the GLT when calculating the Safety Integrity Level SIL or the Performance Level PL Rockwell Automation Publication 440R UM010A EN P May 2015 39 SIL Rating The GLT can be used in applications up to SIL 3 in accordance with IEC 61508 and IEC 62061 Safety Integrity Level Claim Limit 3 PFD 1 43 E 3 PFH 8 11 E 9 Mode of Operation High demand Hardware Fault Tolerance 1 Safe Failure Fraction 9990 Performance Level Category The GLT is capable of being used in safety systems meeting up to Category 4 and Performance Level PLe in accordance with ISO 13849 1 Category Up to 4 Performance Level Up toe MTTFd 352 DC Avg 99 Mission Time a 20 Days of Operation d 365 Hours of Operation h 24 t cycle h s 8 28 8 EMC Directive This product is designed and tested to meet the European Council Directive 2004 108 EC on Electromagnetic Compatibility EMC and the following standards e EN 61000 6 4 Generic Standards Emission Standard for Industrial Environments e EN 61000 6 2 Generic Standards Immunity for Industrial Environments This product is intended for use in an industrial environment Rockwell Automation Publication 440R UM010A EN P May 2015 Rockwell Automation Support Rockwell Automation provides technical information on the Web to assist you in using
35. the contact must be connected to both 12 and 22 The GLT detects short circuits from the inputs S12 and 22 to 24V DC and to 24V common Rockwell Automation Publication 440R UM010A EN P May 2015 15 Chapter 3 Power Ground and Wiring Figure 8 Connecting a Single channel Mechanical Contact Safety Device O 0 SIT S21 S O Figure 9 Connecting Mechanical Contacts of a Dual channel E stop GLT 12 S22 O 21 GLT S12 S22 O When only one dual channel E stop button is used the maximum safety performance rating is Cat 4 PLe and SIL CL3 Figure 10 Connecting Mechanical Contacts of a TLS3 GD2 Since the TLS3 GD2 has multiple contacts in series the maximum safety performance rating is Cat 3 PLd and SIL CL2 TIP Pulse test output 11 can be connected to either 12 or S22 Pulse test output 21 can be connected to either 12 or 522 Regardless of how these are wired performance remains the same The GLT successfully recognizes when one or both channels open and the GLT detects cross channel faults and single channel faults to 24V and to 24V common Rockwell Automation Publication 440R UM010A EN P May 2015 Power Ground and Wiring Chapter 3 Unlock Request Input Safety Devices with OSSD Outputs Devices such as light curtains laser scanners and solid state interlocks have current sourcing PNP semiconductor outputs OSSD which send safety signals to the GLT safety input terminal and d
36. tor shows the major fault The IN1 indicator shows more detail The flashing rate pauses and then repeats itself IMPORTANT For accurate diagnostics always start counting after the first pause The first cycle may not be accurate Rockwell Automation Publication 440R UM010A EN P May 2015 27 Chapter5 Diagnostic LEDs and Troubleshooting Table 7 Diagnostic LEDs Power Status LED Solid red Status Faults An undeclared fault has occurred Cycle power to clear the fault and return the GLT to an operational state Flashing red 1 time The GLT is in configuration mode When the Logic Switch is set to 0 or 9 and the power is cycled the PWR Fault LED will blink at a 1X rate The GLT is in configuration mode Rotate the switches to the desired positions and cycle power Green with Flashing red 2 times The configuration does not agree with the EPROM One or more of the rotary switches have changed during operation The GLT will continue to operate and the switch es can be returned to their original position If the outputs are ON turn the outputs OFF and press reset to clear the fault Green with Flashing red 3 times The connection to terminal B2 has changed The GLT will continue to operate and the connection can return to its original status If the outputs are ON turn the outputs OFF and press reset to clear the fault Green with Flashing red 4 times The safety inputs were closed before the delay tim
37. umber call the phone number above to obtain one to your distributor to complete the return process Outside United States Please contact your local Rockwell Automation representative for the return procedure Documentation Feedback Your comments will help us serve your documentation needs better If you have any suggestions on how to improve this document complete this form publication RA DU002 available at http www rockwellautomation com literature Rockwell Automation maintains current product environmental information on its website at http www rockwellautomation com rockwellautomation about us sustainability ethics product environmental compliance page Rockwell Otomasyon Ticaret A S Kar Plaza Is Merkezi E Blok Kat 6 34752 erenk y stanbul Tel 90 216 5698400 www rockwellautomation com Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation NV Pegasus Park De Kleetlaan 12a 1831 Diegem Belgium Tel 32 2 663 0600 Fax 32 2 663 0640 Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 440R UM010A EN P May 2015 Copyright 2015 Rockwell Automation Inc All rights reserved Printed in the U S A
38. ure Rockwell Automation Publication 440R UM010A EN P May 2015 11 Chapter2 Installation Notes 12 Rockwell Automation Publication 440R UM010A EN P May 2015 Wiring Requirements and Recommendation Chapter 3 Power Ground and Wiring WARNING Calculate the maximum possible current in each power and common wire Observe all electrical codes dictating the maximum current allowable for each wire size Current above the maximum ratings may cause wiring to overheat which can cause damage AN WARNING Before you install and wire any device disconnect power to the system e Allow for at least 50 mm 2 in between I O wiring ducts or terminal strips and the relay e Route incoming power to the relay by a path separate from the device wiring Where paths must cross their intersection should be perpendicular e Donot run signal or communications wiring and power wiring in the same conduit Wires with different signal characteristics should be routed by separate paths e Separate wiring by signal type Bundle wiring with similar electrical characteristics together e Separate input wiring from output wiring e Label wiring to all devices in the system Use tape shrink tubing or other dependable means for labeling purposes In addition to labeling use colored insulation to identify wiring based on signal characteristics For example you may use blue for DC wiring and red for AC wiring Wire Size Each terminal can a
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