www.baldormotion.comTroubleshooting 7-3MN19197.2.1 CommunicationProblem CheckStatus LED is off Check that the 24VDC control circuit supply is connected correctly toconnector X2 and is switched on.Mint WorkBenchfails to detect theMicroFlex - itdetects “Nocontroller found.Communicationfault on COMx”.Ensure that the MicroFlex is powered and the Status LED isilluminated (see section 7.2).Check that the serial cable is connected between the PC’s COM portand connector X6 on the MicroFlex.Check which PC COM port is being used, or use the “Scan all serialports” option to locate the MicroFlex.Check the wiring of the serial cable or try an alternate cable.On the PC, try an alternative COM port.Confirm that a mouse driver or other serial device is not conflicting(using the same COM port) as Mint WorkBench.Does the MicroFlex have firmware in it? If you tried to download newfirmware and the download failed, the controller may not havefirmware.Check that the selected baud rate is supported by the PC andMicroFlex.If the “Only scan COMx” option is selected in Mint WorkBench, checkthat the correct COM port is selected.If the “Search up to Nodexx“ option is selected in Mint WorkBench,check that the MicroFlex node number is not higher than this value, orsearch up to a greater node value.Do you have multiple nodes on the bus? If so, they must all be set tothe same baud rate. Mint WorkBench scans through all the node ID’sat different baud rates. When it finds a node, it will only continue toscan for other nodes at the same baud rate.
