TM 5-3895-374-24-1Chapter 9TroubleshootingTroubleshooting Your 5/03Between the time you apply power to the 5/03processor and it has a chanceProcessorto establish communication with a connected programming device, the onlyform of communication, between you and the 5/03 processor is through theLED display.When power is applied, all of the LEDs flash on and then off while theprocessor conducts hardware tests. This is part of the normal powerupsequence. Following the self test by the processor, all the LEDs against flashon momentarily. If a user program is in a running state, the RUN LED willbe on. If a fault exists within the processor, the FLT LED is on.To receive the maximum benefit of this troubleshooting section, werecommend you follow these steps:1.Identify the status of your processor LEDs. See chapter 4 for descriptionof LEDs and their different states.2.Using the tables on the following pages, match your processor and powersupply LEDs with the status LEDs located in the first column.3.Once the status LEDs are matched to the appropriate table, simply moveacross the table identifying error description aid probable causes.4.Then follow the recommended action steps for each probable cause untilthe cause is identified5.If recommended actions do not identify the trouble cause, contact yourlocal Allen-Bradley sales office or distributor.Clearing 5/03 Processor Faults Using the KeyswitchToggle the keyswitch from RUN to PROG and then back to RUN, this clearsthe fault. If the keyswitch is left in the RUN position, the processor modecannot be changed from a programmer/operator interface device. If youreturn the keyswitch to the REM position, you can then use aprogrammer/operator interface device to change the processor mode.ATTENTION: If you clear a processor fault using thekeyswitch, the processor immediately enters the Run mode.(page 3-444)
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
