Rockwell Automation Allen-Bradley Guardmaster 442G-MAB B-U Series, User Manual

Page 1: ...Multifunctional Access Box Catalog Numbers 442G MABH x 442G MABx Uxx Cxx 442G MABE1 User Manual OriginalInstructions ...

Page 2: ...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 Labels may also be on or inside the equipment to provide specific precautions WARNING Identifies informati...

Page 3: ...ing 16 Terminal Assignment and Wiring 17 Connection of Cover Controls and Indicators 19 Indicator Lens Set Installation 20 Escape Release 20 Electrical Connection 23 Chapter4 Description of Operation Key to Symbols 27 Status Diagnostic Status Indicators 27 Status Diagnostic Status Indicators Table A Standalone Operation 28 Status Diagnostic Status Indicators Table B Series Operation 30 Operation w...

Page 4: ...SR DI and GLP Safety Relay 47 Cat 0 Stop with Speed Monitored Guard Lock Function with GSR SI and GLP Safety Relay 48 Cat 1 Stop with Speed Monitored Guard Lock Function with PowerFlex 525 GSR SI and GLP Safety Relay 49 Cat 1 Stop with Speed Monitored Guard Lock Function with SMC 50 and GLP Safety Relay 50 Cat 1 Stop with Speed Monitored Guard Lock Function with Kinetix 300 and GLP Safety Relay 51...

Page 5: ... of the 442G Multi functional Access Box Conventions Used in This Manual The following conventions are used throughout this manual Bulleted lists such as this one provide information not procedural steps Numbered lists provide steps or hierarchical information Additional Resources These documents contain additional information concerning related products from Rockwell Automation You can view or do...

Page 6: ... a pair of solid state signals 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 short circuits between the two signals Standard coding Same as Low coding as defined in EN ISO 14119 2013 Unique coding Same as High coding as defined in EN ISO 14119 2013 ...

Page 7: ...rce and unlocked by solenoid force when the solenoid is switched ON For Power to Lock versions the locking arm is kept in the locked position by solenoid force and unlocked by spring force when the solenoid is switched OFF Guard lock monitoring can be deactivated with DIP switches see Change Device Configuration using DIP switches on page 34 With ACTIVE Guard Lock Monitoring In combination with a ...

Page 8: ...d in its extended position in the lock module i e the guard door is closed and the bolt is extended In this mode the status of the guard locking is not considered Assembly Overview Figure 1 Locking Module with Control Cover Apply to hardware revision B and higher IMPORTANT The safety outputs FO1A FO1B are not enabled until a handle assembly has been configured see Handle Configuration on page 15 A...

Page 9: ...ng on a 45 mm 1 77 in profile An extended shaft is available 442G MABASHFT See Chapter 3 Installation and Wiring on page 15 for instructions regarding mounting on smaller or larger profiles 3 mm 0 12 in Locking Pin for Handle Adjustment Bolt Tongue Guard Door Handle Roll outBoltLocking Mechanism Automatically Extended Bolt Lock Mechanism 2 x Torx T10 Protective Sleeve Setscrew Handle Cover Actuati...

Page 10: ...1 38 10 0 39 35 1 38 15 0 59 6 5 0 25 20 54 0 81 17 5 0 69 M6 4x 17 5 0 69 170 6 69 86 05 3 39 135 5 31 155 6 10 46 1 81 110 4 33 4 0 16 30 1 18 16 0 63 10 0 39 32 1 26 15 0 59 6 5 0 25 12 0 47 17 5 0 69 17 5 89 4 3 54 135 5 31 130 5 5 14 12 5 0 49 4 0 16 170 6 69 25 0 98 30 1 18 110 4 33 17 5 M6 4x 10 0 39 32 1 26 3 0 12 6 5 0 25 12 0 47 17 5 0 69 17 5 135 5 31 113 5 4 47 4 0 16 170 6 69 20 0 79 ...

Page 11: ...re 4X DIN 7984 M6X12 ZN screw 4X DIN 433 6 NI washer 4X DIN 6797 JZ D6 4 lock washer Locking Module Mounting Plate is supplied with the following hardware 4X DIN 912 M6X25 8 8 ZN screw 4X DIN 433 6 NI washer 4X DIN 6797 JZ D6 4 lock washer Escape Release Mounting Plate is supplied with the following hardware 4X DIN 7984 M6X8 screw 4X DIN 433 6 NI washer 4X DIN 6797 JZ D6 4 lock washer ...

Page 12: ...12 Rockwell Automation Publication 440G UM001B EN P May 2016 Chapter 1 General Description Notes ...

Page 13: ... RFID actuators according to EN ISO 14119 The device is certified for use in safety applications up to and including Performance Level PL e and Category 4 EN ISO 13849 1 ISO 13849 1 for guard position and guard lock monitoring including when connected in series From hardware revision B this device is also certified for use in safety applications up to and including PLe Cat 4 for guard locking cont...

Page 14: ...ples for design Risk assessment and risk reduction Correct use includes compliance with the relevant requirements for installation and operation in particular EN ISO 13849 1 Safety of machinery Safety related parts of control systems General principles for design EN ISO 14119 Safety of machinery Interlocking devices that are associated with guards Principles for design and selection EN 60204 1 Saf...

Page 15: ...er torque the mounting hardware Handle Configuration The unique coded handle assembly must be assigned to the locking module before the system is functional During configuration of the handle the safety outputs are switched off Insert bolt tongue in the locking module Apply operating voltage UA and UB The State status indicator flashes 5 Hz as the device performs a self test up to 8 seconds Progra...

Page 16: ...er to avoid pinching the ribbon cable TIP For easier installation it is recommended that the handle assembly is mounted to the guard door before the silver handle is attached to the handle assembly IMPORTANT Itmustbepossibletoinsertthebolttongueinthelockingmodule Tocheck close the safety guard several times and actuate the guard door handle If available check the function of the escape release It ...

Page 17: ... 9 8 7 12 18 19 15 6 17 16 13 14 2 3 4 5 1 11 10 9 8 7 12 18 19 15 6 17 16 13 14 19 pin M23 QD 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 X5 X4 X3 optional cover function X2 IMM IMP1 IMP2 0V UA OT OL OI 0V UB OD 6 5 4 3 2 1 FI1B FO1A FO1B RST FI1A 6 5 4 3 2 1 8 7 6 5 4 3 8 X5 X4 X3 X2 IMM IMP 0V UA OT OL OI 0V UB OD 6 5 4 3 2 1 FI1B FO1A FO1B RST FI1A 6 5 4 3 2 1 Terminal assignment optional cover function 2...

Page 18: ...FO1B Safety output channel B ON when guard is locked 6 Blue Black X3 5 0V Connected internally to X5 5 7 Grey Pink Pink X4 6 RST Reset apply 24V for at least 3 seconds 8 White Green Violet X5 2 OT Bolt monitoring output ON when guard is closed and bolt is extended 9 White Yellow Brown Green X5 4 OI Fault diagnostic ON when the switch is in a fault state 10 White Grey Red Blue X2 3 S1 A2 E stop cir...

Page 19: ...ring Chapter 3 Connection of Cover Controls and Indicators Figure 3 As Mounted on a Right hinged Guard Figure 4 As Mounted on a Left hinged Guard Figure 5 Connection of Controls and Indicators S3 S1 S2 S4 S3 S2 S1 S4 H2 1 3 S1 7 2 5 4 3 S3 H3 0V 2 X2 6 8 5 4 1 H4 S4 6 S2 A U 24V X3 ...

Page 20: ...a latching fault when the escape release is actuated To reset the device turn the power off for at least three seconds or apply 24V to the input RST for a minimum of three seconds Note A latching fault may not occur if the escape release is actuated slowly 1 2 3 90 Click 1 2 Color Lens IMPORTANT IMPORTANT The guard door must be in the open position to clear a latching fault IMPORTANT The escape re...

Page 21: ...ed shaft is required order separately 442G MABASHFT See the table below for instructions about sizing the extended shaft and mounting the escape release on smaller or larger profiles Profile Width Length Required for Actuation Shaft Shaft Required 3 Necessary Work Steps Without Mounting Plates With Mounting Plates 4 mm each D D 13 5 D 17 5 1 D 21 5 2 30 mm 43 mm 51 mm Standard shaft Shorten to req...

Page 22: ...ease 1 Attach door handle 2 Insert actuation shaft The locking ring A must be in contact with the escape release B 3 Tighten setscrew to 2 Nm 4 Slide protective sleeve over actuation shaft Figure 10 Preparing the Escape Release 55 5 2 19 D 13 5 0 53 4 0 16 182 7 16 D 3 0 12 4 0 16 8 0 32 Ø11 2 0 44 Ø14 0 55 Actuation shaft Protective sleeve perPlate per Plate 1 3 2 4 A B ...

Page 23: ...tly on the Access Box is not allowed Cables are only allowed to be connected using a suitable cable gland Cable glands can be used if they are UL Listed QCRV and are suitable for the related cable diameter 22 17 AWG All electrical outputs must have an adequate protective circuit for inductive loads The outputs must be protected with a free wheeling diode for this purpose RC interference suppressio...

Page 24: ...current required for the outputs The following rules apply Maximum current consumption of an individual device Imax IUB IUA IFO1A FO1B IUB Device operating current 80 mA IUA Load current of monitoring outputs OD OT OL and OI 4 x max 50 mA solenoid switches IFO1A FO1B Load current of safety outputs FO1A FO1B 2 x max 200 mA Maximum current consumption of multiple devices connected in series Imax IFO...

Page 25: ...N P May 2016 25 Installation and Wiring Chapter 3 Lay all Access Box connection cables in a common cable harness Figure 11 Mandatory Cable Laying IMPORTANT Lay cables in a common harness PLC 24 V DC cabinet 0 V MAB FI1A FI1B FO1A FO1B UB 0V UA 0V ...

Page 26: ...26 Rockwell Automation Publication 440G UM001B EN P May 2016 Chapter 3 Installation and Wiring Notes ...

Page 27: ... Input error only applies when switch is configured for series operation 2 Green flash 3 x Off Handle assembly read error Green flash 4 x Off Output error 2 Off Yellow flash 1 Signal Signal sequence erroneous escape release or manual release was actuated 2 Off Off Internal fault 2 Setup Off Off Off Handle configuration completed Cycle power to resume normal operation Normal Operation Flashesgreen ...

Page 28: ...handle assembly only 3 minutes after power up Closed Inserted ON ON ON ON ON OFF 2 Hz Handleconfiguration tip toprevent the interruption of the handle configuration close door and switch on guard locking X X X OFF OFF OFF OFF OFF Positive acknowledgement after completion of the handle configuration Cycle power or apply 24V to RST for at least 3 seconds to resume normal operation Latching fault to ...

Page 29: ...nual release was actuated X X X X X X X X Power is ON for a long time with short interruption One million operating cycles exceeded X X X X OFF OFF OFF ON 2 x Control inputs IMP1 IMP2 IMM invalid switch off control inputs for minimum half second and switch on again to reset Latching fault to reset use the RST input or briefly disconnect the device from the power supply Non latching fault open safe...

Page 30: ...ration as separate device Normal operation door closed and locked Series Operation Normal operation door closed and locked Safety outputs on the previous device ON X Open Not in serted OFF OFF OFF OFF OFF OFF 3 x Door is open unit is ready for configuration of another handle assembly only 3 minutes after power up X Closed In serted ON OFF OFF OFF OFF OFF 2 Hz Handle configuration tip to prevent in...

Page 31: ... X X X X OFF OFF OFF OFF ON Internal fault for example component faulty data fault X X X X OFF OFF OFF OFF ON 1 x Signal sequence erroneous for example broken bolt With active release monitoring escape release or manual release was actuated X X X X X X X X X Power is ON for a long time with short interruption One million operating cycles exceeded X X X X X OFF OFF OFF ON 2 x Control inputs IMP1 IM...

Page 32: ...y default setting for Rev B models is for single channel control a jumper installed in the base of the lock module connects IMP1 and IMP2 MAB O1 IMP1 IMP2 MAB O1 IMP1 IMP2 IMM O2 MAB PLC PLC PLC O1 IMP1 IMP2 IMM O2 1 channel control 1 x p switching 2 channel control 2 x p switching 2 channel control 1 x p switching 1 x n switching Jumper default Signal Terminal Name Rev A Name Rev B Lock Command A...

Page 33: ...le For Power to Lock versions activate guard locking The safety outputs FO1A FO1B are ON The machine must not start automatically It must not be possible to open the safety guard The State status indicator and the lock status indicator are illuminated continuously 3 To start the machine use the control system It must not be possible to open the guard door as long as the machine is running 4 To sto...

Page 34: ...cally The State status indicator is ON The lock status indicator is ON for a long time with a short interruption guard door unlocked or is ON continuously guard door locked 3 To start the machine use the control system 4 Open the guard door for Power to Release versions use the control system to unlock the guard door The machine must switch off and it must not be possible to start it as long as th...

Page 35: ...will be activated Detail Switch Function1 A 1 2 On Device is configured for standalone operation factory setting Off Device is configured for series operation B 3 4 On Guard lock monitoring is deactivated Off Guard lock monitoring is activated factory setting C 5 On DIP switch configuration enabled Off DIP switch configuration inhibited factory setting D 6 On Release monitoring is activated factor...

Page 36: ...itoring 1 Switch off power supply 2 Set DIP switches five and six as shown WARNING Ì If guard lock monitoring is inactive the position of the guard locking does not influence the safety outputs The safety guard can be opened immediately This settingis notallowedto be used in applications in which for example there is hazard due to overrunning machinery movement Deactivating guard lock monitoring A...

Page 37: ...door the actuating direction of the door handle must be changed The example that is shown is for changing from right to left hand operation see Figure 2 De activative release monitoring Activate release monitoring 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON IMPORTANT It is only possible to perform this change when the bolt is not extended and an escape release is not yet mounted 1 Press door handle up 2 Unscrew...

Page 38: ...e guard door in the event of unforeseen or uncommon circumstances With release monitoring active default factory setting the system enters into a latching fault when the escape release is actuated To reset the device turn the power off for at least three seconds or apply 24V to the input RST for a minimum of three seconds OPEN CLOSED 3 mm 9 10 10 Repositionthedoorhandleby90 in clockwise direction ...

Page 39: ...Manual Release IMPORTANT The mechanical release is not a safety function The machine manufacturer must select and use a suitable release according to the risk assessment The correct function must be checked at regular intervals ATTENTION The locking screw must be screwed back in and sealed after assembly and after use of the manual release for example with sealing lacquer Tightening torque is 0 5 ...

Page 40: ...aled in the unlatched position using the seal kit provided Figure 4 Emergency Release ATTENTION It must be possible to operate the emergency unlocking manually from outside the protected area without tools Emergencyunlockingmustpossessamarkingindicatingthatitmaybeused only in an emergency The actuator must not be under tensile stress during manual release The unlocking function meets all other req...

Page 41: ...nsert the emergency release 8 Secure the emergency release with the enclosed screw 9 Check the function of the emergency release Figure 5 Mounting Emergency Release Bolt Locking Mechanism The Access Box has two mechanisms for locking the bolt actuator to prevent locking the guard and restarting the machine while an operator is inside the safeguarded area ATTENTION The mechanical lifetime of the em...

Page 42: ...rect operation of the switching function Also check for signs of abuse or tampering Inspect the switch casing for damage Check the safe function of the device particularly after any of the following Set up work The installation or replacement of a Access Box module An extended period without any use A fault condition Any change to the DIP switch setting IMPORTANT With the manual bolt locking mecha...

Page 43: ...nexpected start up function Hardware Rev B Safe Torque off STO Connector with D Wiring Header see Note 2 Time Blue LOGIC IOD Connector Brown Range Unlock Request White Reset Lock Green Black Red Blue Unlock Cmd A Digital Input Unlock Cmd B Violet Gray Brown Note 1 When using a Hardware Rev A MAB connect the violet wire to terminal 51 of the GLT The gray brown wire must be remain unconnected Note t...

Page 44: ...Time Blue LOGIC Brown Range Unlock Request White Green Green Black Red Blue Unlock Cmd A Unlock Cmd B Violet Gray Brown Pink see Note 1 MAB Cover Rev A Rev B Retract Bolt Extend Bolt MAB cover Yellow Brown Reset Lock ON OFF Status to PAC Hardware Rev B see Note 3 see Note 2 Note 2 U Connected to 24V internally in MAB OL True when the door is closed the bolt is extended and locked OT True when the ...

Page 45: ...xample The unlock request initiates a category 1 stop The MAB and GLT provide a time delayed guard lock function The MAB and GLT provide a prevention of unexpected start up function Hardware Rev B No Conn Digital Common Time Blue LOGIC Stop Brown Range Unlock Request White Green Reset Lock Green Black Red Blue Unlock Cmd A Start Unlock Cmd B Violet Green Brown Gate Note 1 WhenusingaHardwareRev AMA...

Page 46: ... 4 3 2 1 X3 IMM IMP 0V UA In this example The unlock request initiates a category 1 stop The MAB and GLT provide a time delayed guard lock function The MAB and GLT provide a prevention of unexpected start up function Hardware Rev B Retract Bolt Extend Bolt Time Blue LOGIC Stop Brn Range Unlock Request White Green Reset Lock Green Black Red Blue Unlock Cmd A Start see Note 3 Unlock Cmd B Violet Gra...

Page 47: ...provide a prevention of unexpected start up function Hardware Rev B Unlock Request MAB cover Reset Lock Blue Brown Yellow Brown Gray Pink Status to PAC Reset MAB Fault Green Black Red Blue Unlock Cmd A see Note 2 Unlock Cmd B Violet Gray Brown White Green Rev B Rev A Status to PAC Pink Blue Black Brown Blue Black Brown Start Stop see Note 2 see Note 3 see Note 1 Note 1 U Connected to 24V internall...

Page 48: ...nction Hardware Rev B MAB cover Reset Lock Blue Brown Yellow Brown Gray Pink Status to PAC Reset MAB Fault Green Black Red Blue Unlock Cmd A see Note 2 Unlock Cmd B Violet Gray Brown White Green Rev B Rev A Status to PAC Unlock Request Pink Blue Black Brown Blue Black Brown see Note 2 see Note 1 Reset see Note 3 Start Stop Note 1 U Connected to 24Vinternally in MAB OL True when the door is closed ...

Page 49: ...d OT True when the door is closed and the bolt is extended locked or not Note 2 When using a Hardware Rev A MAB connect the violet wire to terminal 51 of the GLT The gray brown wire must remain unconnected Note that the terminal designations of X3 6 and X3 7 are different on Hardware Rev A and Hardware Rev B MAB A In this example The E stop initiates a category 1 stop function The unlock request p...

Page 50: ...to 24V internally in MAB OL True when the door is closed the bolt is extended and locked OT True when the door is closed and the bolt is extended locked or not Note 3 WhenusingaHardwareRev AMAB connectthevioletwiretoterminal51ofthe GLT The gray brown wire must remain unconnected Note that the terminal designations of X3 6 and X3 7 are different on Hardware Rev A and Hardware Rev B MAB A In this ex...

Page 51: ...category 1 stop function The MAB and GLP provide a speed monitored guard lock function The MAB and GLP provide a prevention of unexpected start up function Hardware Rev B MAB cover Reset Lock Blue Brown Yellow Brown Green Black Red Blue Unlock Cmd A see Note 1 Unlock Cmd B Violet Gray Brown White Green Pink Blue Black Brown Blue Black Brown see Note 3 White Gray Pink Reset MAB MAB cover Unlock Req...

Page 52: ...ed OT True when the door is closed and the bolt is extended locked or not A MAB cover Reset Lock Blue Brown Yellow Brown Green Black Red Blue Unlock Cmd A see Note 1 Unlock Cmd B Violet Gray Brown White Green Pink Blue Black Brown Blue Black Brown see Note 3 White Gray Pink Reset MAB MAB cover Unlock Request AC Line Input Power Stop see Note 2 Rev B Rev A Note 2 Configured for three wire control e...

Page 53: ...cuit proof Start up Time availability 0 5 s configured for standalone operation 8 s configured for series operation Output Voltage UA 2V UA Maximum Length of Switch Chain 10 MAB devices Maximum Load each 50 mA maximum Utilization Category IEC 60947 5 2 DC 13 24V 200 mA Push Button Controls and Indicators Insulation Voltage Ui IEC 60947 1 30V Operating Voltage 5 24 V DC Impulse Withstand Voltage Ui...

Page 54: ...e locking and handle modules For this purpose a suitable installation position should be selected The device should be covered during paint work y x z 40 1 57 83 3 27 19 2 0 75 M20x1 5 0 06 4x 62 5 2 46 51 2 01 40 1 57 113 5 4 47 104 4 09 289 3 11 39 89 4 3 52 7 5 0 3 24 0 95 6 5 0 26 89 4 3 52 86 5 3 41 6 3 0 25 92 5 3 64 77 5 3 05 6 2 0 24 46 1 81 10 0 39 5 0 20 15 0 59 16 5 0 65 73 5 2 89 10 0 ...

Page 55: ...achine Layout Cat No Right hand Guard Door Figure 2 442G MABH R Left hand Guard Door Figure 3 442G MABH L Lock Type Machine Layout Cat No Cable Entry M20 Connector 19 pin M23 PTL Right hand Guard Door Figure 2 442G MABL UT 442G MABL URM Left hand Guard Door Figure 3 442G MABL ULM PTR Right hand Guard Door Figure 2 442G MABR UT 442G MABR URM Left hand Guard Door Figure 3 442G MABR ULM Replace with ...

Page 56: ...3 Add 2 5 or 10 for cable length in meters C03 E stop S1 and two illuminated push buttons S2 S3 CO4 E stop S1 and three illuminated push buttons S2 S3 S4 CO5 E stop S1 IMPORTANT See Figure 2 right hand guard door assembly and Figure 3 left hand guard door assembly for the positions of the controls Covers with push buttons are supplied with a colored lens kit including one blue green red and yellow...

Page 57: ...2G MABADH Replacement Indicator Lens Covers 442G MABALENS 4 Lock Module Replacement Cover no controls 442G MAB C00 Lock Module Replacement Cover one push button 442G MAB C01 Lock Module Replacement Cover two push buttons 442G MAB C02 Lock Module Replacement Cover E stop two push buttons 442G MAB C03 Lock Module Replacement Cover E stop three push buttons 442G MAB C04 Lock Module Replacement Cover ...

Page 58: ...58 Rockwell Automation Publication 440G UM001B EN P May 2016 Chapter 6 Specifications Notes ...

Page 59: ...the bolt of the handle assembly 2 Switch off the voltage at all devices or press the reset button if present that controls ALL integrated reset inputs in the series connection 3 Close the door 4 Switch the voltage on again or release the reset button 5 Wait until the State LED flashes at regular intervals The 442G MAB is now ready for operation again DIA LEDIlluminated and State LED FlashesOneTime...

Page 60: ... standalone mode 2 Switch off the voltage or press the reset button if present that controls the integrated reset input 3 Close the door s 4 Switch the voltage on again or release the reset button 5 Wait until the State LED flashes at regular intervals The Access Box is now ready for operation again Detail Switch Function1 A 1 2 On Device is configured for standalone operation factory setting Off ...

Page 61: ...n An upstream unit is set as a standalone device Remedy 1 Check the wiring and correct it or switch off the clock pulses or check the upstream devices for incorrect DIP switch configuration 2 Switch off the voltage at all devices or press the reset button if present that controls ALL integrated reset inputs in the series connection 3 Close the door s 4 Switch the voltage on again or release the re...

Page 62: ...ox is now ready for operation again Remedy in case of hardware fault in the handle assembly Replace the handle assembly and repeat the instructions for the handle configuration see Handle Configuration on page 15 Tip Close the guard door and activate guard locking to avoid interruptions during the handle configuration DIA LEDIlluminated and State LEDFlashesFourTimes Fault Output fault Possible cau...

Page 63: ... incorrect Possible causes Bolt actuator broken EMC interference Hardware fault in the handle assembly Different potentials between fence and door With active release monitoring escape release or manual release was activated Remedy 1 Open all safety doors on which the LED Lock is flashing regardless of the number of flashing pulses so that no passage is possible 2 Switch off the voltage at all dev...

Page 64: ...mplete the device configuration see Change Device Configuration using DIP switches on page 34 process set DIP switch five to OFF Restart the Access Box DIA LEDNotIlluminated and State LEDFlashesThreeTimes The device indicates that it is ready to learn a new handle assembly This state will continue for three minutes after power up with the door open DIA LEDNotIlluminated and State LEDFlashesApproxi...

Page 65: ...putLEDon theEvaluationUnit Even when the Access Box is switched off it emits a pulse sequence at output FO1A to verify the functional capability of the output circuit at all times So a faintly flickering LED can be seen on an input of an evaluation unit even though the evaluation unit does not switch on or signal any fault TIP Close the door and activate guard locking to avoid interruptionsduring ...

Page 66: ...66 Rockwell Automation Publication 442G UM001B EN P May 2016 Appendix A Troubleshooting and Assistance Notes ...

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