Quick Start Guide: Troubleshooting Light Curtains Connected to NX
Contents
1. Type Variable Ne wi NX SID8O0 Y Safety Inputs S100 Logical Value i m FEBOOL Emi AFEBOOL Ne E ight_curtain_1 AFEROOL C aane oE ht curtain_2 AFEBOOL 106 Logical Value AFEBOOL mateys S07 Logical Value i SAFEBOOL i Eri S01 Logical Value E gt rd ri E S102 Logical Value S103 Logical Value n As S104 Logical Value S105 Logical Value n cri Esa Ts Document QSG TROUBLESHOOTING LIGHT CURTAINS Version 1 0 Feb 10 2014 Page 4 of 5 OMRON AUTOMATION amp SAFETY 2014 Omron Electronics LLC www omron247 com OMRON AUTOMATION amp SAFETY Program Use ESPE Safety function block with output to and EDM Safety function block In this example it is using G5 servo drive with direct connect to safety Normally would be force guided contacts Multiview Explorer gt select new_safetyCPU gt Programming gt POU gt Programs gt ProgramO LightCurtain_1 GS _ServoDrive SF EDM SF _ESPE 5C5_A110K Activate Ready 5C5_A110K Max Monitor time What to see at startup Image of NX CPU SID800 input SOH400 output The yellow indicator lights will be on when they are operational The FS and TS lights at the top will be green SID800 gt ETS RUN 0m Dw o 2026 EBM i5 n ow we Document QSG TROUBLESHOOTING LIGHT CURTAINS Version 1 0 Feb 10 2014 Page 5 of 5 OMRON AUTOMATION amp SAFETY 2014 Omron Electronics LLC www om2. eb 10 2014 Page 3 of 5 OMRON AUTOMATION amp SAFETY 2014 Omron Electronics LLC www omron247 com OMRON AUTOMATION amp SAFETY Parameter Node Select Semiconductor output for dual channel equivalent Multiview explorer gt Select Safety CPU gt Configuration and setup gt Communications gt Safety gt Safety I O gt Select a node gt double click on parameters gt click on the white X next to the filter to see all of the nodes gt use toolbox to select a safety device might need to drag right side window to see the toolbox gt drag and drop parameter to knob gt complete for all nodes Note The fields in the nodes are not used in the program Could be used to enter part name type number Configurations and Setup Semiconductor Output for Dual Channel Equivalent Source On gt Off Off gt On Te I O Map Setup variables in the I O map Multiview Explorer gt select Safety CPU gt Configurations and Setup gt double click on I O Map gt make sure arrown buttons are all pointing down gt use variable template to paste Note It will not paste if there is an empty field Can only do groups when no empty fields OR manually enter with right click OR scroll down to highlight all variables gt right click gt select variable Note Do not enter a variable name for the second input or output of dual channel devices 4 Configurations and Setup Posi Port RAW Data
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4. voltmeter to check the continuity between the wire on the light curtain to the input wire connected to the NX Safety I O Also check the continuity between the 24 V on the power supply to the input wire connected to the NX MNE 24VDC Document QSG TROUBLESHOOTING LIGHT CURTAINS Version 1 0 Feb 10 2014 Page 2 of 5 OMRON AUTOMATION amp SAFETY 2014 Omron Electronics LLC www omron247 com OMRON AUTOMATION amp SAFETY Wiring These application examples are from G9SP manuals ODDS2 White yellow brown Receiver black cable _ Emitter gray cable ODDS 1 Black 24VDC blue F3SJ B PNP A Auto Reset S ODDS2 White Receiver black cable Emitter gray cable ODDS1 Black 24VDC F3SJ E PNP Manual Reset Note The PNP is wired the opposite of NPN So all of the 24V on a PNP are 0 V on NPN and vice versa Power Supply Make sure 24V and OV are coming from the same power supply If they are separated the output will only turn on when the light curtain is blocked Opposite of what it should do i t24 y Black White FSSJ E B Race ver Best practice Servo brake and I O should be on separate power supplies Sharing can cause noise on the I O lines when the brake is applied Is also good practice to have separate power supplies for the coupler and the I O devices Document QSG TROUBLESHOOTING LIGHT CURTAINS Version 1 0 F
5. y OMRON AUTOMATION amp SAFETY Light Curtain Quick Start Guide This guide will show you how to troubleshoot light curtains connected to NX Safety I O Troubleshooting 1 Is it PNP 2 Is it aligned 3 Is wiring correct 4 Continuity 5 Power supply separate from servo brakes 6 24V and OV coming from the same power supply PNP and NPN Safety applications require a PNP light curtain PNP means there will be no voltage to the load if the output line has a ground fault NPN is not used for safety since the equipment can run out of control if the wires touch the equipment frame It would act like a switch In the America s market only PNP are sold NPN light curtains may come into the America s through Japanese automotive specifications How to check The receiver unit with the black cable has the part number If the end of the part number has a P it is PNP Note N would be NPN Sample PNP part number F3SJ B0224Pb5 D Document QSG TROUBLESHOOTING LIGHT CURTAINS Version 1 0 Feb 10 2014 Page 1of5 OMRON AUTOMATION amp SAFETY 2014 Omron Electronics LLC www omron247 com OMRON AUTOMATION amp SAFETY Alignment Blue lights at the ends of both light curtains should be on If not loosen bracket readjust and tighten Broken Beams Easy way to see if a beam has been broken by the environment is to look for red indicator lights being on Continuity Use a
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