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PDF Diagnostics - Mech

1. 8120 INTERLOCKS and 8127 MOTORS Fault Resetting The ACH550 can be configured to automatically reset certain faults Refer to parameter Group 31 Automatic Reset Warning If an external source for start command is selected and it is active the ACH550 may start immediately after fault reset Flashing Red LED To reset the drive for faults indicated by a flashing red LED Turn off the power for 5 minutes Red LED To reset the drive for faults indicated by a red LED on not flashing correct the problem and do one of the following e From the control panel press RESET Turn off the power for 5 minutes Depending on the value of 1604 FAULT RESET SELECT the following could also be used to reset the drive e Digital input e Serial communication When the fault has been corrected the motor can be started Diagnostics ACH550 UH User s Manual 255 History For reference the last three fault codes are stored into parameters 0401 0412 0413 For the most recent fault identified by parameter 0401 the drive stores additional data in parameters 0402 0411 to aid in troubleshooting a problem For example parameter 0404 stores the motor speed at the time of the fault To clear the fault history all of the Group 04 Fault History parameters 1 Using the control panel in Parameters mode select parameter 0401 2 Press EDIT 3 Press UP and Down simultaneously 4 Press SAVE Corre
2. 9904 MOTOR CTRL MODE must be 3 PFAWOSCALAR SCALAR SPEED when 8123 PFA ENABLE is activated Diagnostics 254 ACH550 UH User s Manual rault raut Name In Description and Recommended Corrective Action Code Panel 1009 PAR PCuU1 Parameter values for power control are inconsistent Improper motor nominal frequency or speed Check for both of the following e 1 lt 60 9907 MOTOR NOM FREQ 9908 MOTOR NOM SPEED lt 16 0 8 lt 9908 MOTOR NOM SPEED 120 9907 MOTOR NOM FREQ Motor Poles lt 0 992 1010 PAR PFA Both the override mode and PFA are activated at the same time These OVERRIDE modes are mutually incompatible because PFA interlocks cannot be observed in the override mode 1011 PAR OVERRIDE Overeride is enabled but parameters are incompatible Verify that1701 is PARS not zero and depending on 9904 value 1702 or 1703 is not zero 1012 PAR PFC IO 1 IO configuration is not complete not enough relays are parameterized to PFC Or a conflict exists between Group 14 parameter 8117 NR OF AUX MOT and parameter 8118 AUTOCHNG INTERV 1013 PAR PFC 10 2 IO configuration is not complete the actual number of PFC motors parameter 8127 MOTORS does not match the PFC motors in Group 14 and parameter 8118 AUTOCHNG INTERV 1014 PAR PFC IO 3 IO configuration is not complete the drive is unable to allocate a digital input interlock for each PFC motor parameters
3. Not used as of the publication of this manual 26 DRIVE ID Internal fault Configuration Block Drive ID is not valid Contact your local ABB sales representative Diagnostics 252 ACH550 UH User s Manual Fault Fault Name In ae z Code Panel Description and Recommended Corrective Action 27 CONFIG FILE Internal configuration file has an error Contact your local ABB sales representative 28 SERIAL 1 ERR Fieldbus communication has timed out Check for and correct e Fault setup 3018 COMM FAULT FUNC and 3019 COMM FAULT TIME Communication settings Group 51 or 53 as appropriate Poor connections and or noise on line 29 EFB CONFIG Error in reading the configuration file for the embedded fieldbus FILE 30 FORCE TRIP Fault trip forced by the fieldbus See the fieldbus User s Manual 31 EFB 1 Fault code reserved for the embedded fieldbus EFB protocol application These codes are not used as of the publication of this manual 32 EFB 2 33 EFB 3 34 MOTOR PHASE Fault in the motor circuit One of the motor phases is lost Check for and correct e Motor fault e Motor cable fault e Thermal relay fault if used e Internal fault 35 OUTPUT WIRING Possible power wiring error detected When the drive is not running it monitors for an improper connection between the drive input power and the drive output Check for and correct e Proper input wirin
4. for analog input e Parameter settings for AI1FLT LIMIT 3021 and 3001 AI lt MIN FUNCTION Al2 LOSS Analog input 2 loss Analog input value is less than AI2FLT LIMIT 3022 Check for and correct e Source and connection for analog input e Parameter settings for AI2FLT LIMIT 3022 and 3001 AI lt MIN FUNCTION MOT TEMP Motor is too hot based on either the drive s estimate or on temperature feedback e Check for overloaded motor e Adjust the parameters used for the estimate 3005 3009 e Check the temperature sensors and Group 35 parameters 10 PANEL LOSS Panel communication is lost and either e Drive is in local control mode the control panel displays HAND or e Drive is in remote control mode REM and is parameterized to accept start stop direction or reference from the control panel To correct check e Communication lines and connections Parameter 3002 PANEL COMM ERROR e Parameters in Group 10 Command Inputs and Group 11 Reference Select if drive operation is REM 11 ID RUN FAIL The motor ID run was not completed successfully Check for and correct e Motor connections e Motor parameters 9905 9909 12 MOTOR STALL Motor or process stall Motor is operating in the stall region Check for and correct e Excessive load e Insufficient motor power e Parameters 3010 3012 14 EXTERNAL FLT 1 Digital input defined to report first external fault is active S
5. 248 ACH550 UH User s Manual Diagnostics A A Warning Do not attempt any measurement parts replacement or other service procedure not described in this manual Such action will void the warranty may endanger correct operation and increase downtime and expense Warning All electrical installation and maintenance work described in this chapter should only be undertaken by qualified service personnel The Safety instructions on the first pages of this manual must be followed Diagnostic Displays The drive detects error situations and reports them using The green and red LED on the body of the drive The status LED on the control panel if the HVAC control panel is attached to the drive e The control panel display if the HVAC control panel is attached to the drive The Fault Word and Alarm Word parameter bits parameters 0305 to 0309 See Group 03 Actual Signals on page 67 The form of the display depends on the severity of the error You can specify the severity for many errors by directing the drive to e Ignore the error situation e Report the situation as an alarm Report the situation as a fault Red Faults The drive signals that it has detected a severe error or fault by Enabling the red LED on the drive LED is either steady on or blinking Setting an appropriate bit in a Fault Word parameter 0305 to 0307 e Overriding the control panel display with the display o
6. D 9908 MOTOR NOM SPEED is outside proper range gt 50 2007 MINIMUM FREQ 9907 MOTOR NOM FREQ is outside proper range gt 50 2008 MAXIMUM FREQ 9907 MOTOR NOM FREQ is outside proper range gt 50 1001 PAR PFAREFNG Parameter values are inconsistent Check for the following 2007 MINIMUM FREQ is negative when 8123 PFA ENABLE is active 1002 RESERVED Obsolete 1003 PAR Al SCALE Parameter values are inconsistent Check for any of the following e 1301 Al 1 MIN gt 1302 Al 1 MAX e 1304 Al 2 MIN gt 1305 Al 2 MAX 1004 PAR AO SCALE Parameter values are inconsistent Check for any of the following e 1504 AO 1 MIN gt 1505 AO 1 MAX e 1510 AO 2 MIN gt 1511 AO 2 MAX 1005 PAR PCU 2 Parameter values for power control are inconsistent Improper motor nominal kVA or motor nominal power Check for the following e 1 1 lt 9906 MOTOR NOM CURR 9905 MOTOR NOM VOLT 1 73 Py lt 3 0 e Where Py 1000 9909 MOTOR NOM POWER if units are kW or Px 746 9909 MOTOR NOM POWER if units are HP e g in US 1006 EXT ROMISSING Parameter values are inconsistent Check for the following e Extension relay module not connected and e 1410 1412 RELAY OUTPUTS 4 6 have non zero values 1007 PAR Parameter values are inconsistent Check for and correct FBUSMISSING A parameter is set for fieldbus control e g 1001 EXT1 COMMANDS 10 COMM but 9802 COMM PROT SEL 0 1008 PAR Parameter values are inconsistent
7. H User s Manual Alarm Code Display Description 2006 Al1 LOSS Analog input 1 is lost or value is less than the minimum setting Check e Input source and connections e Parameter that sets the minimum 3021 e Parameter that sets the Alarm Fault operation 3001 2007 Al2 LOSS Analog input 2 is lost or value is less than the minimum setting Check e Input source and connections e Parameter that sets the minimum 3022 e Parameter that sets the Alarm Fault operation 3001 2008 PANEL LOSS Panel communication is lost and either e Drive is in local control mode the control panel displays LOC or e Drive is in remote control mode REM and is parameterized to accept start stop direction or reference from the control panel To correct check e Communication lines and connections e Parameter 3002 PANEL LOSS e Parameters in groups 10 COMMAND INPUTS and 11 REFERENCE SELECT if drive operation is REM 2009 DEVICE OVERTEMP Drive heatsink is hot This alarm warns that a DEVICE OVERTEMP fault may be near R1 R4 amp R7 R8 100 C 212 F R5 R6 110 C 230 F Check for and correct Fan failure e Obstructions in the air flow Dirt or dust coating on the heat sink Excessive ambient temperature Excessive motor load 2010 MOT OVERTEMP Motor is hot based on either the drive s estimate or on temperature feedback This alarm warns that a Motor Un
8. accelerate when the PID sleep function ends To control PID sleep use parameters 4022 4026 or 4122 4126 2019 ID RUN Performing ID run 2020 RESERVED 2021 START ENABLE 1 This alarm warns that the Start Enable 1 signal is missing MISSING To control Start Enable 1 function use parameter 1608 To correct check e Digital input configuration Communication settings 2022 START ENABLE 2 This alarm warns that the Start Enable 2 signal is missing MISSING To control Start Enable 2 function use parameter 1609 To correct check e Digital input configuration e Communication settings 2023 EMERGENCY Emergency stop activated STOP 2024 ENCODER ERROR The drive is not detecting a valid encoder signal Check for and correct Encoder presence and proper connection reverse wired loose connection or short circuit Voltage logic levels are outside of the specified range A working and properly connected Pulse Encoder Interface Module OTAC 01 Wrong value entered in parameter 5001 PULSE NR A wrong value will only be detected if the error is such that the calculated slip is greater than 4 times the rated slip of the motor Encoder is not being used but parameter 5002 ENCODER ENABLE 1 ENABLED 2025 FIRST START Signals that a the drive is performing a First Start evaluation of motor characteristics This is normal the first time the motor is run after motor parameters are entered or changed See param
9. cting Alarms The recommended corrective action for alarms is Determine if the Alarm requires any corrective action action is not always required e Use Alarm Listing below to find and address the root cause of the problem Alarm Listing The following table lists the alarms by code number and describes each Alarm ee Code Display Description 2001 OVERCURRENT Current limiting controller is active Check for and correct e Excessive motor load e Insufficient acceleration time parameters 2202 ACCELER TIME 1 and 2205 ACCELER TIME 2 Faulty motor motor cables or connections 2002 OVERVOLTAGE Over voltage controller is active Check for and correct e Static or transient overvoltages in the input power supply e Insufficient deceleration time parameters 2203 DECELER TIME 1 and 2206 DECELER TIME 2 2003 UNDERVOLTAGE Under voltage controller is active Check for and correct Undervoltage on mains 2004 DIR LOCK The change in direction being attempted is not allowed Either Do not attempt to change the direction of motor rotation or e Change parameter 1003 DIRECTION to allow direction change if reverse operation is safe 2005 I O COMM Fieldbus communication has timed out Check for and correct e Fault setup 8018 COMM FAULT FUNC and 3019 COMM FAULT TIME e Communication settings Group 51 or 53 as appropriate e Poor connections and or noise on line Diagnostics 256 ACH550 U
10. derload fault trip may be near Check e Check for overloaded motor e Adjust the parameters used for the estimate 3005 3009 e Check the temperature sensors and Group 35 parameters 2011 UNDERLOAD Motor load is lower than expected This alarm warns that a Motor Underload fault trip may be near Check e Motor and drive ratings match motor is NOT undersized for the drive e Settings on parameters 3013 to 3015 2012 MOTOR STALL Motor is operating in the stall region This alarm warns that a Motor Stall fault trip may be near 2013 note 1 AUTORESET This alarm warns that the drive is about to perform an automatic fault reset which may start the motor e To control automatic reset use parameter group 31 AUTOMATIC RESET 2014 note 1 AUTOCHANGE This alarm warns that the PFA autochange function is active To control PFA use parameter group 81 PFA CONTROL Diagnostics ACH550 UH User s Manual 257 Alarm BERA Code Display Description 2015 PFA INTERLOCK This alarm warns that the PFA interlocks are active which means that the drive cannot start the following Any motor when Autochange is used The speed regulated motor when Autochange is not used 2016 Reserved 2017 OFF BUTTON Note 1 2018 PID SLEEP This alarm warns that the PID sleep function is active which means note 1 that the motor could
11. ee parameter 3003 EXTERNAL FAULT 1 15 EXTERNAL FLT 2 Digital input defined to report second external fault is active See parameter 3004 EXTERNAL FAULT 2 Diagnostics ACH550 UH User s Manual 251 Fault Fault Name In Pee Code Panel Description and Recommended Corrective Action 16 EARTH FAULT Possible ground fault detected in the motor or motor cables The drive monitors for ground faults while the drive is running and while the drive is not running Detection is more sensitive when the drive is not running and can produce false positives Possible corrections e Check for correct faults in the input wiring e Verify that motor cable does not exceed maximum specified length A delta grounded input power supply and motor cables with high Capacitance may result in erroneous error reports during non running tests To disable response to fault monitoring when the drive is not running use parameter 3023 WIRING FAULT To disable response to all ground fault monitoring use parameter 3017 EARTH FAULT 17 UNDERLOAD Motor load is lower than expected Check for and correct e Disconnected load e Parameters 3013 UNDERLOAD FUNCTION 3015 UNDERLOAD CURVE 18 THERM FAIL Internal fault The thermistor measuring the internal temperature of the drive is open or shorted Contact your local ABB sales representative 19 OPEX LINK Internal fault A communication re
12. eter 9910 MOTOR ID RUN for a description of motor models 2026 RESERVED Not used 2027 USER LOAD This alarm warns that the condition defined by parameter 3701 USER CURVE LAOD C MODE has been valid longer that half of the time difined by 3703 USER LOAD C TIME 2028 START DELAY Shown during the Start delay See parameter 2113 START DELAY Note 1 Even when the relay output is configured to indicate alarm conditions e g parameter 1401 RELAY OUTPUT 1 5 ALARM or 16 FLT ALARM this alarm is not indicated by a relay output Diagnostics
13. excessive Check for and correct e Excessive motor load e Insufficient acceleration time parameters 2202 ACCELER TIME 1 and 2205 ACCELER TIME 2 e Faulty motor motor cables or connections DC OVERVOLT Intermediate circuit DC voltage is excessive Check for and correct e Static or transient overvoltages in the input power supply e Insufficient deceleration time parameters 2203 DECELER TIME 1 and 2206 DECELER TIME 2 e Verify that overvoltage controller is ON using parameter 2005 DEV OVERTEMP Drive heatsink is overheated Temperature is at or above limit R1 R4 amp R7 R8 115 C 239 F R5 R6 125 C 257 F Check for and correct Fan failure e Obstructions in the air flow Dirt or dust coating on the heat sink e Excessive ambient temperature e Excessive motor load SHORT CIRC Fault current Check for and correct A short circuit in the motor cable s or motor e Supply disturbances Diagnostics 250 ACH550 UH User s Manual Fault Code Fault Name In Panel Description and Recommended Corrective Action RESERVED Not used DC UNDERVOLT Intermediate circuit DC voltage is not sufficient Check for and correct e Missing phase in the input power supply e Blown fuse e Undervoltage on mains All LOSS Analog input 1 loss Analog input value is less than AI1FLT LIMIT 3021 Check for and correct e Source and connection
14. f a fault code Stopping the motor if it was on The fault code on the control panel display is temporary Pressing any of the following buttons removes the fault message MENU ENTER UP button or DOWN button The message reappears after a few seconds if the control panel is not touched and the fault is still active Diagnostics ACH550 UH User s Manual Flashing Green Alarms 249 For less severe errors called alarms the diagnostic display is advisory For these situations the drive is simply reporting that it had detected something unusual In these situations the drive Flashes the green LED on the drive does not apply to alarms that arise from control panel operation errors e Sets an appropriate bit in an Alarm Word parameter 0308 or 0309 See Group 03 Actual Signals on page 67 for the bit definitions e Overrides the control panel display with the display of an alarm code and or name Alarm messages disappear from the control panel display after a few seconds The message returns periodically as long as the alarm condition exists Correcting Faults The recommended corrective action for faults is e Use the Fault Listing table below to find and address the root cause of the problem e Reset the drive See Fault Resetting on page 254 Fault Listing Fault Code Fault Name In Panel Description and Recommended Corrective Action 1 OVERCURRENT Output current is
15. g line voltageis NOT connected to drive output e The fault can be erroneously declared if the input power is a delta grounded system and motor cable capacitance is large This fault can be disabled using parameter 3023 WIRING FAULT 36 INCOMP The drive cannot use the software SWTYPE e Internal Fault The loaded software is not compatible with the drive e Call support representative 37 CB OVERTEMP Drive control board is overheated Check for and correct e Excessive ambient temperatures e Fan failure e Obstructions in the air flow 101 SERF CORRUPT Error internal to the drive Contact your local ABB sales representative and report the error number 102 RESERVED 103 SERF MACRO 104 RESERVED 105 RESERVED Diagnostics ACH550 UH User s Manual 253 Fault Fault Name In Pere Code Panel Description and Recommended Corrective Action 201 DSP T1 Error in the system Contact your local ABB sales representative and report OVERLOAD the error number 202 DSP T2 OVERLOAD 203 DSP T3 OVERLOAD 204 DSP STACK ERROR 205 RESERVED obsolete 206 OMIO ID ERROR 207 EFB LOAD ERR 1000 PAR HZRPM Parameter values are inconsistent Check for any of the following LIMITS e 2001 MINIMUM SPEED gt 2002 MAXIMUM SPEED 2007 MINIMUM FREQ gt 2008 MAXIMUM FREQ e 2001 MINIMUM SPEED 9908 MOTOR NOM SPEED is outside proper range gt 50 e 2002 MAXIMUM SPEE
16. lated problem has been detected on the fiber optic link between the OITF and OINT boards Contact your local ABB sales representative 20 OPEX PWR Internal fault Low voltage condition detected on OINT power supply Contact your local ABB sales representative 21 CURR MEAS Internal fault Current measurement is out of range Contact your local ABB sales representative 22 SUPPLY PHASE Ripple voltage in the DC link is too high Check for and correct e Missing mains phase Blown fuse 23 ENCODER ERR Not used Available only with encoder and parameter group 50 23 ENCODER ERR The drive is not detecting a valid encoder signal Check for and correct Encoder presence and proper connection reverse wired loose connection or short circuit Voltage logic levels are outside of the specified range A working and properly connected Pulse Encoder Interface Module OTAC 01 Wrong value entered in parameter 5001 PULSE NR A wrong value will only be detected if the error is such that the calculated slip is greater than 4 times the rated slip of the motor Encoder is not being used but parameter 5002 ENCODER ENABLE 1 ENABLED 24 OVERSPEED Motor speed is greater than 120 of the larger in magnitude of 2001 MINIMUM SPEED or 2002 MAXIMUM SPEED Check for and correct e Parameter settings for 2001 and 2002 e Adequacy of motor braking torque e Applicability of torque control e Brake chopper and resistor 25 RESERVED

PDF Diagnostics - Mech

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