Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual

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Speed high Motor speed is above the value set in4-53 Warning Speed High.Speed low Motor speed is below the value set in4-52 Warning Speed Low.Standby In Auto On mode, the frequency converterstarts the motor with a start signal from adigital input or serial communication.Start delay In 1-71 Start Delay, a delay starting time wasset. A start command is activated and themotor starts after the start delay time expires.Start fwd/rev Start forward and start reverse were selectedas functions for 2 different digital inputs(parameter group 5-1* Digital Inputs). Themotor starts in forward or reverse dependingon which corresponding terminal is activated.Stop The frequency converter has received a stopcommand from the LCP, digital input, or serialcommunication.Trip An alarm occurred and the motor is stopped.Once the cause of the alarm is cleared, thefrequency converter can be reset manually bypressing [Reset] or remotely by controlterminals or serial communication.Trip lock An alarm occurred and the motor is stopped.Once the cause of the alarm is cleared, powermust be cycled to the frequency converter.The frequency converter can then be resetmanually by pressing [Reset] or remotely bycontrol terminals or serial communication.Table 7.3 Operation StatusNOTICEIn auto/remote mode, the frequency converter requiresexternal commands to execute functions.7.3 Warning and Alarm TypesWarningsA warning is issued when an alarm condition is impendingor when an abnormal operating condition is present andmay result in the frequency converter issuing an alarm. Awarning clears by itself when the abnormal condition isremoved.AlarmsTripAn alarm is issued when the frequency converter istripped, which means that the frequency convertersuspends operation to prevent frequency converter orsystem damage. The motor coasts to a stop. The frequencyconverter logic continues to operate and monitor thefrequency converter status. After the fault condition isremedied, the frequency converter can be reset. It is thenready to start operation again.Resetting the frequency converter after trip/trip lockA trip can be reset in any of 4 ways:• Press [Reset] on the LCP• Digital reset input command• Serial communication reset input command• Auto resetTrip lockInput power is cycled. The motor coasts to a stop. Thefrequency converter continues to monitor the frequencyconverter status. Remove input power to the frequencyconverter, correct the cause of the fault, and reset thefrequency converter.Warning and Alarm Displays• A warning is displayed in the LCP along with thewarning number.• An alarm flashes along with the alarm number.130BP086.11Status0.0Hz 0.000kW 0.00A0.0Hz0Earth Fault [A14]Auto Remote Trip1(1)Illustration 7.2 Alarm Display ExampleIn addition to the text and alarm code in the LCP, thereare 3 status indicator lights.BackCancelInfoOKOnAlarmWarn.130BB467.11Warning LED Alarm LEDWarning On OffAlarm Off On (Flashing)Trip-Lock On On (Flashing)Illustration 7.3 Status Indicator LightsDiagnostics and Troubleshoo... Operating Instructions34 Danfoss A/S © Rev. 06/2014 All rights reserved. MG11AK0277