Eaton D77A Installation And User Manual

Contents

Intelligent Technologies (IT.) D77A I/O Module Products46 For more information visit: www.EatonElectrical.com MN05002001ETroubleshootingTable 28: TroubleshootingRenewal PartsTable 29: I/O Module Renewal PartsCommunication Troubleshooting HintsExplanation of LED Duty Cycle StatesTable 30: Explanation of LED Duty Cycle StatesObservation Possible Cause/Corrective ActionThe input LED will not illuminate. Verify that the module is powered; the LED is controlled by the micro controllerin the device.The power for the input itself may not be applied. Verify that there is a validsignal on the input point.The screws on the terminal may be loose; tighten the screws.Replace the device.The output LED is illuminated but the output is not on. Check that the switch closes on the output using a multi meter.The screws on the terminal may be loose; tighten the screws.Replace the device.The status LED has a “fast blink” while all other device’sstatus LEDs are “mostly on.” See Table 26 Status LED.The “fast blink” device may have the same Group ID as another device. Verifythat all devices have unique Group IDs.The “fast blink” device was not accepted into the scan list. Reasons include itwas replaced and the device is not the same as the original device (parametersare different or the product is different).An out-of-box device was inserted into an actively scanning QCPort; power willneed to be cycled on QCPort to be accepted.While On-Line with CH Studio the I/O Module disappears. It may be that the controller is not allowing enough time for the CH Studiomessages and the connection between CH Studio and the Network Adapter istiming out. You may have to take the system controller off-line to continue oradd an interscan delay to the industrial network scan.While looking at the I/O Module it is noticed that the statusLED is solid on.If no other LED’s are on it is possible the I/O Module was placed into a firmwaredownload mode, cycle power to the I/O Module and see if the LED behavesproperly.The module may have corrupt memory or damage to the circuit board and themodule will need to be replaced.Description Part Number7-Position QCPort Backplane D77E-BP712-Position QCPort Backplane D77E-BP1225-Position QCPort Backplane D77E-BP20QCPort RJ Terminator D77E-TERRJ25 cm Powered QCPort Interconnect D77E-QPIP251 Meter QCPort Interconnect D77E-QPIP1002 Meter QCPort Interconnect D77E-QPIP2003 Meter QCPort Interconnect D77E-QPIP300QCPort Terminator and Power Tap D77E-QPLRLED Duty Cycle State ExplanationMostly Off One short blink ON every 2 secondsMostly On One short blink OFF every 2 seconds50% ON and OFF blinking same amount of time; 1/2 second cycleRapid Flash Strobe