57TroubleshootingPOWER LEDThe green POWER LED is on when AC line voltage isapplied and the control’s low-voltage power supply isoperational.FAULT LEDThe red FAULT LED turns on when the drive output islocked out or not ENABLED and any one of the followingfault conditions occur:1. Overvoltage• FHP 230AC controls: DC bus exceeds 400 VDC• FHP 115AC controls: DC bus exceeds 200 VDC2. Undervoltage• FHP 230AC controls: DC bus drops below 200 VDC• FHP 115AC controls: DC bus drops below 100 VDC3. Instantaneous Overcurrent Trip - Inverter output current hasexceeded safe levels.Note: The FAULT condition must be reset using theENABLE function of the FHP (opening and closingthe ENABLE input).Diagnostic LEDsLEESON FHP Series drives are equipped with diagnosticLED’s to assist the user in troubleshooting and monitoringequipment status while in use. Refer to Figure 29 (page58) for diagnostic LED locations.
