Danfoss VLT AQUA Drive FC 202 Operating Manual

Also see for VLT AQUA Drive FC 202: Service guide Installation guide Installation guide Operating guide Installation guide

Contents

• Check the power card.ALARM 70, Illegal FC configurationThe control card and power card are incompatible. Tocheck compatibility, contact the Danfoss supplier with thetype code from the unit nameplate and the part numbersof the cards.WARNING/ALARM 71, PTC 1 Safe StopSafe Torque Off (STO) has been activated from the VLT®PTC Thermistor Card MCB 112 because the motor is toowarm. Once the motor cools and the digital input from theMCB 112 is deactivated, normal operation can resumewhen the MCB 112 applies 24 V DC to terminal 37 again.When the motor is ready for normal operation, a resetsignal is sent (via serial communication, digital I/O, or bypressing [Reset] on the LCP). If automatic restart isenabled, the motor can start when the fault is cleared.ALARM 72, Dangerous failureSTO with trip lock. An unexpected combination of STOcommands has occurred:• VLT® PTC Thermistor Card MCB 112 enablesX44/10, but STO is not enabled.• MCB 112 is the only device using STO (specifiedthrough selection [4] PTC 1 alarm or [5] PTC 1warning in parameter 5-19 Terminal 37 DigitalInput), STO is activated, and X44/10 is notactivated.WARNING 73, Safe Stop auto restartSafe Torque Off (STO) activated. With automatic restartenabled, the motor can start when the fault is cleared.ALARM 74, PTC ThermistorAlarm related to VLT® PTC Thermistor Card MCB 112. ThePTC is not working.ALARM 75, Illegal profile sel.Do not write the parameter value while the motor isrunning. Stop the motor before writing the MCO profile toparameter 8-10 Control Profile.WARNING 76, Power unit setupThe required number of power units does not match thedetected number of active power units. When replacing anenclosure size F module, this warning occurs if the power-specific data in the module power card does not matchthe rest of the drive. If the power card connection is lost,the unit also triggers this warning.Troubleshooting• Confirm that the spare part and its power cardare the correct part number.• Ensure that the 44-pin cables between the MDCICand power cards are mounted properly.WARNING 77, Reduced power modeThis alarm applies to only multi-drive systems. The systemis operating in reduced power mode (fewer than theallowed number of drive modules). This warning isgenerated on power cycle when the system is set to runwith fewer drive modules and remains on.ALARM 78, Tracking errorThe difference between setpoint value and actual valueexceeds the value in parameter 4-35 Tracking Error.Troubleshooting• Disable the function or select an alarm/warningin parameter 4-34 Tracking Error Function.• Investigate the mechanics around the load andmotor. Check feedback connections from motorencoder to drive.• Select motor feedback function inparameter 4-30 Motor Feedback Loss Function.• Adjust the tracking error band inparameter 4-35 Tracking Error andparameter 4-37 Tracking Error Ramping.ALARM 79, Illegal power section configurationThe scaling card has an incorrect part number or is notinstalled. Also, the MK101 connector on the power cardcould not be installed.ALARM 80, Drive initialised to default valueParameter settings are initialized to default settings after amanual reset. To clear the alarm, reset the unit.ALARM 81, CSIV corruptCSIV file has syntax errors.ALARM 82, CSIV parameter errorCSIV failed to initialize a parameter.ALARM 83, Illegal option combinationThe mounted options are incompatible.ALARM 84, No safety optionThe safety option was removed without applying a generalreset. Reconnect the safety option.ALARM 88, Option detectionA change in the option layout is detected.Parameter 14-89 Option Detection is set to [0] Frozen config-uration and the option layout has been changed.• To apply the change, enable option layoutchanges in parameter 14-89 Option Detection.• Alternatively, restore the correct option configu-ration.WARNING 89, Mechanical brake slidingThe hoist brake monitor detects a motor speed exceeding10 RPM.ALARM 90, Feedback monitorCheck the connection to encoder/resolver option and, ifnecessary, replace VLT® Encoder Input MCB 102 or VLT®Resolver Input MCB 103.ALARM 91, Analog input 54 wrong settingsSet switch S202 in position OFF (voltage input) when aKTY sensor is connected to analog input terminal 54.Maintenance, Diagnostics, a... Operating GuideMG21A502 Danfoss A/S © 09/2018 All rights reserved. 939 9