Baldor 15P Series Installation And Operating Manual

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Baldor 15P Series Installation And Operating Manual Manual pdf 24 page image

Section 5Troubleshooting5-1 Troubleshooting MN715PThe Baldor Series 15P Control requires very little maintenance, if any, andshould provide years of trouble free operation when installed and appliedcorrectly. Occasional visual inspection to ensure tight wiring connections andcleaning to remove dust, dirt, or foreign debris which can reduce heatdissipation should be considered.Operational failures called faults are displayed on the LED’s as they occur.Procedures in this section describe how to recognize a fault and restorenormal operation.Before service is performed, all input power must be removed from the controlto avoid electrical shock hazard. Most troubleshooting can be performedusing only a digital voltmeter having an input impedance exceeding 1megohm. In some cases, an oscilloscope with 5 MHz minimum bandwidthmay be useful. Before consulting the factory, check that all power and controlwiring is correct and installed per the recommendations given in this manual.Figure 5-1 LED IdentificationPOWER FAULTFWDREVSTOP010203040 50 60708090100% SpeedFaultLEDFWD LEDREV LEDSTOP LEDPOWER LEDFault Code DeterminationWhen the Fault LED is blinking, a failure has been detected. One of five faultcodes is displayed by the flashing Fault LED. To determine the fault code,carefully observe the blinking pattern. The blinking (2Hz rate) should stop for1.5 seconds. This 1.5 second pause is the start of the display sequence.Count the number of blinks that occur between the 1.5 second pauses. Oneblink = Fault code 1, two blinks = fault code 2 etc. When the fault code isdetermined, refer to Fault Code Descriptions.Fault Code DescriptionsFive fault codes can be displayed. Carefully examine all LED’s (Power, Fault,FWD, REV and Stop) to determine the cause of the fault condition. PressStop to reset the control.