ABB ACS550 Fault Codes05/24/2018The following lists the faults for the ABB ACS550 series drives by code number and describes each. The fault name is shown in long form along with some possible causes and corrective actions that may be taken. 1 OVERCURRENT Output current is excessive. Check for and correct: • Excessive motor load. • Insufficient acceleration time (parameters 2202 ACCELER TIME 1 and 2205 ACCELER TIME 2). • Faulty motor, motor cables or connections. 2 DC OVERVOLT Intermediate circuit DC voltage is excessive. Check for and correct: • Static or transient overvoltages in the input power supply. • Insufficient deceleration time (parameters 2203 DECELER TIME 1 and 2206 DECELER TIME 2). • Undersized brake chopper (if present). • Verify that overvoltage controller is ON (using parameter 2005). 3 DEV OVERTEMP Drive heatsink is overheated. Temperature is at or above limit. Check for and correct: • Fan failure. • Obstructions in the air flow. • Dirt or dust coating on the heat sink. • Excessive ambient temperature. • Excessive motor load. 4 SHORT CIRC Fault current. Check for and correct: • A short-circuit in the motor cable(s) or motor. • Supply disturbances. 5 RESERVED Not used. 6 DC UNDERVOLT Intermediate circuit DC voltage is not sufficient. Check for and correct: • Missing phase in the input power supply. • Blown fuse. • Undervoltage on mains. 7 AI1 LOSS Analog input 1 loss. Analog input value is less than AI1 FAULT LIMIT (3021). Check for and correct: • Source and connection for analog input. • Parameter settings for AI1 FAULT LIMIT (3021) and 3001 AI<MIN FUNCTION. 8 AI2 LOSS Analog input 2 loss. Analog input value is less than AI2 FAULT LIMIT (3022). Check for and correct: • Source and connection for analog input. • Parameter settings for AI2 FAULT LIMIT (3022) and 3001 AI<MIN FUNCTION. 9 MOT OVERTEMP Motor is too hot, based on either the drive’s estimate or on temperature feedback. • Check for overloaded motor. • Adjust the parameters used for the estimate (3005…3009). • Check the temperature sensors and Group 35: MOTOR TEMP MEAS parameters. 10 PANEL LOSS Panel communication is lost and either: • Drive is in local control mode (the control panel displays LOC), or • Drive is in remote control mode (REM) and is parameterized to accept start/stop, direction or reference from the control panel. To correct check: • Communication lines and connections. • Parameter 3002 PANEL COMM ERR. • Parameters in Group 10: START/STOP/DIR 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: • Motor connections. • Motor parameters 9905…9909. 12 MOTOR STALL Motor or process stall. Motor is operating in the stall region. Check for and correct: • Excessive load. • Insufficient motor power. • Parameters 3010…3012. 13 RESERVED Not used. 14 EXT FAULT 1 Digital input defined to report first external fault is active. See parameter 3003 EXTERNAL FAULT 1. 15 EXT FAULT 2 Digital input defined to report second external fault is active. See parameter 3004 EXTERNAL FAULT 2. 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: • Check for/correct faults in the input wiring. • 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. Note: Disabling earth fault (ground fault) may void the warranty. 17 OBSOLETE Not used. 18 THERM FAIL Internal fault. The thermistor measuring the internal temperature of the drive is open or shorted. 19 OPEX LINK Internal fault. A communication-related problem has been detected on the fiber optic link between the control and OINT boards. 20 OPEX PWR Internal fault. Exceptionally low voltage detected on the OINT power supply. 21 CURR MEAS Internal fault. Current measurement is out of range. 22 SUPPLY PHASE Ripple voltage in the DC link is too high. Check for and correct: • Missing mains phase. • Blown fuse. 23 ENCODER ERR The drive is not detecting a valid encoder signal. Check for and correct: • Encoder presence and proper connection (reverse wired = channel A connected to terminal of channel B or vice versa, 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 (ENABLE). 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: • Parameter settings for 2001 and 2002. • Adequacy of motor braking torque. • Applicability of torque control. • Brake chopper and resistor. 25 RESERVED Not used. 26 DRIVE ID Internal fault. Configuration Block Drive ID is not valid. 27 CONFIG FILE Internal configuration file has an error. 28 SERIAL 1 ERR Fieldbus communication has timed out. Check for and correct: • Fault setup (3018 COMM FAULT FUNC and 3019 COMM FAULT TIME). • Communication settings (Group 51: EXT COMM MODULE or Group 53: EFB PROTOCOL as appropriate). • Poor connections and/or noise on line. 29 EFB CON FILE Error in reading the configuration file for the embedded fieldbus. 30 FORCE TRIP Fault trip forced by the fieldbus. 31 EFB 1 Fault code reserved for the embedded fieldbus (EFB) protocol application. The meaning is protocol dependent. 32 EFB 2 Fault code reserved for the embedded fieldbus (EFB) protocol application. The meaning is protocol dependent. 33 EFB 3 Fault code reserved for the embedded fieldbus (EFB) protocol application. The meaning is protocol dependent. 34 MOTOR PHASE Fault in the motor circuit. One of the motor phases is lost. Check for and correct: • Motor fault. • Motor cable fault. • Thermal relay fault (if used). • Internal fault. 35 OUTP 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: • Proper input wiring – line voltage is NOT connected to drive output. • 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 INCOMPATIBLE SW The drive cannot use the software. • Internal fault. • The loaded software is not compatible with the drive. 37 CB OVERTEMP Drive control board is overheated. The fault trip limit is 88 °C. Check for and correct: • Excessive ambient temperature. • Fan failure. • Obstructions in the air flow. Not for drives with an OMIO control board. 38 USER LOAD CURVE Condition defined by parameter 3701 USER LOAD C MODE has been valid longer than the time defined by 3703 USER LOAD C TIME. If the corrective actions listed here do not allow the drive to continue to run, it may be a sign of a significant issue that may require repair. This is the time to call on the ABB ACS550 drive repair experts at PES at 800-732-1695. Back To Blog
ABB ACS550 Fault Codes05/24/2018The following lists the faults for the ABB ACS550 series drives by code number and describes each. The fault name is shown in long form along with some possible causes and corrective actions that may be taken. 1 OVERCURRENT Output current is excessive. Check for and correct: • Excessive motor load. • Insufficient acceleration time (parameters 2202 ACCELER TIME 1 and 2205 ACCELER TIME 2). • Faulty motor, motor cables or connections. 2 DC OVERVOLT Intermediate circuit DC voltage is excessive. Check for and correct: • Static or transient overvoltages in the input power supply. • Insufficient deceleration time (parameters 2203 DECELER TIME 1 and 2206 DECELER TIME 2). • Undersized brake chopper (if present). • Verify that overvoltage controller is ON (using parameter 2005). 3 DEV OVERTEMP Drive heatsink is overheated. Temperature is at or above limit. Check for and correct: • Fan failure. • Obstructions in the air flow. • Dirt or dust coating on the heat sink. • Excessive ambient temperature. • Excessive motor load. 4 SHORT CIRC Fault current. Check for and correct: • A short-circuit in the motor cable(s) or motor. • Supply disturbances. 5 RESERVED Not used. 6 DC UNDERVOLT Intermediate circuit DC voltage is not sufficient. Check for and correct: • Missing phase in the input power supply. • Blown fuse. • Undervoltage on mains. 7 AI1 LOSS Analog input 1 loss. Analog input value is less than AI1 FAULT LIMIT (3021). Check for and correct: • Source and connection for analog input. • Parameter settings for AI1 FAULT LIMIT (3021) and 3001 AI<MIN FUNCTION. 8 AI2 LOSS Analog input 2 loss. Analog input value is less than AI2 FAULT LIMIT (3022). Check for and correct: • Source and connection for analog input. • Parameter settings for AI2 FAULT LIMIT (3022) and 3001 AI<MIN FUNCTION. 9 MOT OVERTEMP Motor is too hot, based on either the drive’s estimate or on temperature feedback. • Check for overloaded motor. • Adjust the parameters used for the estimate (3005…3009). • Check the temperature sensors and Group 35: MOTOR TEMP MEAS parameters. 10 PANEL LOSS Panel communication is lost and either: • Drive is in local control mode (the control panel displays LOC), or • Drive is in remote control mode (REM) and is parameterized to accept start/stop, direction or reference from the control panel. To correct check: • Communication lines and connections. • Parameter 3002 PANEL COMM ERR. • Parameters in Group 10: START/STOP/DIR 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: • Motor connections. • Motor parameters 9905…9909. 12 MOTOR STALL Motor or process stall. Motor is operating in the stall region. Check for and correct: • Excessive load. • Insufficient motor power. • Parameters 3010…3012. 13 RESERVED Not used. 14 EXT FAULT 1 Digital input defined to report first external fault is active. See parameter 3003 EXTERNAL FAULT 1. 15 EXT FAULT 2 Digital input defined to report second external fault is active. See parameter 3004 EXTERNAL FAULT 2. 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: • Check for/correct faults in the input wiring. • 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. Note: Disabling earth fault (ground fault) may void the warranty. 17 OBSOLETE Not used. 18 THERM FAIL Internal fault. The thermistor measuring the internal temperature of the drive is open or shorted. 19 OPEX LINK Internal fault. A communication-related problem has been detected on the fiber optic link between the control and OINT boards. 20 OPEX PWR Internal fault. Exceptionally low voltage detected on the OINT power supply. 21 CURR MEAS Internal fault. Current measurement is out of range. 22 SUPPLY PHASE Ripple voltage in the DC link is too high. Check for and correct: • Missing mains phase. • Blown fuse. 23 ENCODER ERR The drive is not detecting a valid encoder signal. Check for and correct: • Encoder presence and proper connection (reverse wired = channel A connected to terminal of channel B or vice versa, 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 (ENABLE). 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: • Parameter settings for 2001 and 2002. • Adequacy of motor braking torque. • Applicability of torque control. • Brake chopper and resistor. 25 RESERVED Not used. 26 DRIVE ID Internal fault. Configuration Block Drive ID is not valid. 27 CONFIG FILE Internal configuration file has an error. 28 SERIAL 1 ERR Fieldbus communication has timed out. Check for and correct: • Fault setup (3018 COMM FAULT FUNC and 3019 COMM FAULT TIME). • Communication settings (Group 51: EXT COMM MODULE or Group 53: EFB PROTOCOL as appropriate). • Poor connections and/or noise on line. 29 EFB CON FILE Error in reading the configuration file for the embedded fieldbus. 30 FORCE TRIP Fault trip forced by the fieldbus. 31 EFB 1 Fault code reserved for the embedded fieldbus (EFB) protocol application. The meaning is protocol dependent. 32 EFB 2 Fault code reserved for the embedded fieldbus (EFB) protocol application. The meaning is protocol dependent. 33 EFB 3 Fault code reserved for the embedded fieldbus (EFB) protocol application. The meaning is protocol dependent. 34 MOTOR PHASE Fault in the motor circuit. One of the motor phases is lost. Check for and correct: • Motor fault. • Motor cable fault. • Thermal relay fault (if used). • Internal fault. 35 OUTP 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: • Proper input wiring – line voltage is NOT connected to drive output. • 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 INCOMPATIBLE SW The drive cannot use the software. • Internal fault. • The loaded software is not compatible with the drive. 37 CB OVERTEMP Drive control board is overheated. The fault trip limit is 88 °C. Check for and correct: • Excessive ambient temperature. • Fan failure. • Obstructions in the air flow. Not for drives with an OMIO control board. 38 USER LOAD CURVE Condition defined by parameter 3701 USER LOAD C MODE has been valid longer than the time defined by 3703 USER LOAD C TIME. If the corrective actions listed here do not allow the drive to continue to run, it may be a sign of a significant issue that may require repair. This is the time to call on the ABB ACS550 drive repair experts at PES at 800-732-1695.