Allen Bradley PowerFlex 753 Fault Codes05/14/2021Troubleshooting an Allen Bradley PowerFlex 753 drive is not often necessary due to the robust nature of this drive series, but occasionally problems arise that necessitate a deeper dive into understanding the PowerFlex 753 fault codes and their meaning. Below are listed the PowerFlex 753 Fault Codes with event number, Fault/Alarm Text and the description of the faults. For more detailed information, see below for a link to the PowerFlex 750 troubleshooting guide. Fault Name/Description/Action 0 No Entry ----- 2 Aux Input An aux input interlock is open ----- 3 Power Loss DC bus voltage remained below 85% of nominal for longer than [Power Loss Time]. ----- 4 UnderVoltage If the bus voltage, P11 [DC Bus Volts] falls below the value set in P461 [UnderVltg Level] an undervoltage condition exists. ----- 5 OverVoltage The DC bus voltage exceeded the maximum value. See P11 [DC Bus Volts]. ----- 7 Motor Overload An internal electronic overload trip has occurred. See P7 [Output Current], P26 [Motor NP Amps, P413 [Mtr OL Factor], and/or P414 [Mtr OL Hertz]. ----- 8 Heatsink OvrTemp The heatsink temperature has exceeded 100% of the drive temperature. ----- 9 Trnsistr OvrTemp The output transistors have exceeded the maximum operating temperature. See P941 [IGBT Temp Pct] and/or P942 [IGBT Temp C]. ----- 10 DynBrake OvrTemp The dynamic brake resistor has exceeded its maximum operating temperature. Check settings of parameters P382 [DB Resistor Type] through P385 [DB ExtPulseWatts]. ----- 12 HW OverCurrent The drive output current has exceeded the hardware current limit. Megger test wiring to motor. ----- 13 Ground Fault A current path to earth ground greater than 25% of drive rating has occurred. ----- 14 Ground Warning The ground current has exceeded the level set in P467 [Ground Warn Lvl]. ----- 15 Load Loss The output torque current is below the value programmed in P442 [Load Loss Level] for a time period greater than the time programmed in P443 [Load Loss Time]. ----- 17 Input Phase Loss The DC bus ripple has exceeded a preset level. Increase the setting of P463 ----- 18 Motor PTC Trip Motor PTC (Positive Temperature Coefficient) over temperature. ----- 19 Task Overrun System resource utilization is at or above 90% of capacity. ----- 20 TorqPrv Spd Band The difference between P2 [Commanded SpdRef] and P3 [Mtr Vel Fdbk] has exceeded the level programmed in P1105 [Speed Dev Band] for a time period greater than the time programmed in P1106 [SpdBand Intgrtr]. ----- 21 Output PhaseLoss The current in one or more phases has been lost or remains below the threshold set in P445 [Out PhaseLossLvl] for one second. ----- 24 Decel Inhibit The drive is not following a commanded deceleration because it is attempting to limit the bus voltage. ----- 25 OverSpeed Limit The motor operating speed exceeds the limit set by the maximum speed setting P524 [Overspeed Limit]. ----- 26 Brake Slipped The encoder movement has exceeded the level in P1110 [Brk Slip Count] ----- 27 Torq Prove Cflct When P1100 [Trq Prove Cfg] is enabled, P35 [Motor Ctrl Mode] must be properly set, and P125 [Pri Vel Fdbk Sel] and P135 [Mtr Psn Fdbk Sel] must be set the same. If these parameters point to a feedback module, the module parameters must also be properly set. Does not work in PM FV mode. ----- 28 TP Encls Config Encoderless TorqProve has been enabled but user has not read and understood application concerns of encoderless operation. ----- 29 Analog In Loss Analog input has a lost signal. ----- 33 AuRsts Exhausted The drive unsuccessfully attempted to reset a fault and resume running for the programmed number of tries. ----- 35 IPM OverCurrent The current magnitude has exceeded the trip level set by P1640 [IPM Max Cur]. ----- 36 SW OverCurrent The drive output current has exceeded the 1 ms current rating. ----- 38 Phase U to Grnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 39 Phase V to Grnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 40 Phase W to Grnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 41 Phase UV Short Excessive current has been detected between these two output terminals. ----- 42 Phase VW Short Excessive current has been detected between these two output terminals. ----- 43 Phase UW Short Excessive current has been detected between these two output terminals. ----- 44 Phase UNegToGrnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 45 Phase VNegToGrnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 46 Phase WNegToGrnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 48 System Defaulted The drive was commanded to write default values. ----- 49 Drive Powerup A Power Up Marker in the Fault Queue indicating that the drive power cycled. ----- 51 Clr Fault Queue Indication that the fault queue has been cleared. ----- 58 Module Defaulted The module was commanded to write default values. ----- 59 Invalid Code Internal error. ----- 61 Shear Pin 1 The programmed value in P436 [Shear Pin1 Level] has been exceeded. ----- 62 Shear Pin 2 The programmed value in P439 [Shear Pin2 Level] has been exceeded. ----- 64 Drive OverLoad P940 [Drive OL Count] has exceeded 50% but is less than 100%. ----- 67 Drive OverLoad Pump Off condition has been detected. ----- 71-76 Port Adapter (Port 1-6) The DPI communications option has a fault. See device event queue. ----- 77 IR Volts Range The default for P70 [Autotune] is 1 “Calculate” and the value calculated from the motor nameplate values returned a value for P73 [IR Voltage Drop] which is not in the range of acceptable values. ----- 78 FluxAmpsRef Rang The value for flux amps determined by the Autotune procedure exceeds the value programmed in P26 [Motor NP Amps]. ----- 79 Excessive Load The motor did not come up to speed in the allotted time during Autotune. ----- 80 AutoTune Aborted The Autotune function was manually canceled or a fault occurred. ----- 81-86 Port (1-6) DPI Loss DPI port stopped communicating. ----- 87 IXo VoltageRange The default for P70 [Autotune] is 1 “Calculate” and the voltage calculated for motor inductive impedance exceeds 25% of the value of P25 [Motor NP Volts]. ----- 91 Pri VelFdbk Loss A Feedback Loss has been detected for the source of P134 [Aux Vel Feedback]. ----- 93 Hw Enable Check Hardware enable is disabled (jumper installed) but indicates not enabled. ----- 94 Alt VelFdbk Loss A Feedback Loss has been detected for the source of P128 [Alt Vel Fdbk Sel]. ----- 95 Aux VelFdbk Loss A Feedback Loss has been detected for the source of P132 [Aux Vel Fdbk Sel]. ----- 96 PositionFdbkLoss A Feedback Loss has been detected for the source of P847 [Psn Fdbk]. ----- 97 Auto Tach Switch Indication that either of the two following conditions exists. • Tach switch has occurred and alternate feedback device has failed. • Tach switch has not occurred, Auto Tach Switch Option is enabled and both primary and alternate devices have failed. ----- 100 Parameter Chksum The checksum read from the non-volatile storage does not match the checksum calculated. Data set to default value. ----- 101 PwrDn NVS Blank Internal data error. • Reset parameter defaults. See publication 20HIM-UM001 for instructions. • Reload parameters. • If problem persists replace main control board. Fault normally occurs after a flash update to correct F117 fault. ----- 102 NVS Not Blank Internal data error. ----- 103 PwrDn NVS Incomp Internal data error. ----- 104 Pwr Brd Checksum The checksum read from the non-volatile storage does not match the checksum calculated. Data set to default value. ----- 106 Incompat MCB-PB The main control board did not recognize the power structure. Flash with newer Application version. ----- 107 Replaced MCB-PB The main control board was moved to a different power structure. Data set to default values. ----- 108 Anlg Cal Chksum The checksum read from the analog calibration data does not match the checksum calculated. Replace main control board. ----- 111 PwrBd Invalid ID Power structure ID invalid. Flash with newer Application version. ----- 112 PwrBd App MinVer Power structure needs newer Application version. Flash with newer Application version. ----- 113 Tracking DataErr Internal data error. ----- 115 PwrDn Table Full Internal data error. ----- 116 PwrDnEntry2Large Internal data error. ----- 117 PwrDn Data Chksm Internal data error. ----- 118 PwrBd PwrDn Chks Internal data error. ----- 124 App ID Changed Application Firmware changed. Verify Application version. ----- 125 Using Backup App Application did not flash correctly. Reflash. ----- 134 Start On PowerUp When P345 [Start At PowerUp] is enabled, an alarm will be set for the time programmed in P346 [PowerUp Delay]. ----- 137 Ext Prechrg Err The seal contact on the external precharge contactor has opened (as signalled by P190 [DI Prchrg Seal]) while the drive was running (PWM was active). ----- 138 Precharge Open The internal precharge was commanded to open while the drive was running (PWM was active). The internal fault latch will be automatically cleared when PWM is disabled. ----- 141 Autn Enc Angle P78 [Encdrlss AngComp] is out of range. ----- 142 Autn Spd Rstrct Frequency limit settings are preventing the drive from reaching a suitable speed during an Inertia Tune test. ----- 143 Autotune CurReg Calculated values for P96 [VCL Cur Reg Kp] and/or P97 [VCL Cur Reg Ki] are out of range. ----- 144 Autotune Inertia Results from the Inertia Tune test out of range for P76 [Total Inertia]. ----- 145 Autotune Travel When P77 [Inertia Test Lmt] is set, the Inertia Tune test was prevented from reaching a suitable speed to run the test. ----- 152 No Stop Source Last stop source has been removed. ----- 155 Bipolar Conflict P308 [Direction Mode] is set to 1 “Bipolar” or 2 “Rev Disable” and one or more digital input is enabled for direction control. ----- 157 DigIn Cfg B Digital input conflict. Input functions that cannot exist at the same time have been selected (for example run and start). Correct Digital Input configuration. ----- 158 DigIn Cfg C Digital input conflict. Input functions that cannot be assigned to the same digital input have been selected (for example run and stop). Correct Digital Input configuration. ----- 161 Sleep Config There is a Sleep/Wake configuration error. With Sleep Wake Mode = Direct, possible causes include: Drive is stopped and Wake Level < Sleep Level. Stop=CF, Run, Run Fwd, or Run Rev is not configured in Digital Input functions. ----- 162 Waking The Wake timer is counting toward a value that will start the drive. ----- 168 HeatSinkUnderTmp Heatsink temperature sensor is reporting a value below -18.7 °C (-1.66 °F) or the sensor feedback circuit is open. See P943 [Drive Temp Pct] and/or P944 [Drive Temp C]. ----- 169 PWM Freq Reduced The PWM Frequency has been reduced from the value set in P38 [PWM Frequency] due to excessive IGBT junction temperatures. See also P420 [Drive OL Mode]. ----- 170 CurLimit Reduced The current limit value has been reduced from the value set in [Current Limit n] due to excessive IGBT junction temperatures or P940 [Drive OL Count] = 95%. See also P420 [Drive OL Mode]. ----- 171 Adj Vltg Ref Invalid adjustable voltage reference selection conflict. ----- 175 Travel Lim Cflct Travel limits are in conflict. Both the forward and reverse travel limits indicate they are simultaneously active. ----- 177 Profiling Active The Profile/Indexer is active. ----- 178 Homing Active The Homing function is active. ----- 181 Fwd End Limit The selected digital input for one of the end limit switches, P196 [DI Fwd End Limit] or P198 [DI Rev End Limit], has detected a falling edge and P313 [Actv SpTqPs Mode] is not set to 1 “Speed Reg.” ----- 182 Rev End Limit The selected digital input for one of the end limit switches, P196 [DI Fwd End Limit] or P198 [DI Rev End Limit], has detected a falling edge and P313 [Actv SpTqPs Mode] is not set to 1 “Speed Reg.” ----- 185 Freq Conflict Indicates that the values of P520 [Max Fwd Speed] and P521 [Max Rev Speed] are in conflict with the value of P63 [Break Frequency]. ----- 186 VHz Neg Slope Indicates that the V/Hz curve segment resulted in a negative V/Hz slope. See P60 [Start Acc Boost] through P63 [Break Frequency]. ----- 187 VHz Boost Limit Indication that one of the two following conditions exists. • P60 [Start/Acc Boost] and P61 [Run Boost] are greater than P25 [Motor NP Volts] x 0.25 when P65 [VHz Curve] = 0 “Custom V/Hz.” • P61 [Run Boost] is greater than P25 [Motor NP Volts] x 0.25 when P65 [VHz Curve] = 1 “Fan/Pump.” ----- 190 PM FV Pri Fdbk Indicates a control mode and primary feedback device configuration error. ----- 191 PM FV Alt Fdbk Indicates a control mode and alternate feedback device configuration error. ----- 192 Fwd Spd Lim Cfg The forward speed reference is out of range. ----- 193 Rev Spd Lim Cfg The reverse speed reference is out of range. ----- 194 PM Offset Conflict Both P80 [PM Cfg] bit 0 “AutoOfstTest” and bit 2 “StaticTestEn” are set. Select only one. ----- 195 IPMSpdEstErr Speed Estimator failed to track High Speed angle. ----- 196 PM FS Cflct Attempted to set P356 [FlyingStart Mode] to 2 “Sweep” with a permanent magnet motor selected in P35 [Motor Ctrl Mode]. ----- 201 SpdReg DL Err Attempted to establish a Datalink to P644 [Spd Err Flt BW], P645 [Speed Reg KP], or P647 [Speed Reg Ki] and P636 [Speed Reg BW] is set to a value other than zero. ----- 202 AltSpdReg DL Err Attempted to establish a Datalink to P649 [Alt Speed Reg Kp], P650 [Alt Speed Reg Ki], or P651 AltSpdErr FltrBW] and P648 [Alt Speed Reg BW] is set to a value other than zero.. ----- 203 Port 13 Adapter The embedded EtherNet/IP adapter has a fault. See EtherNet event queue. ----- 204 Port 14 Adapter The DeviceLogix adapter has a fault. ----- 205 DPI TransportErr A DPI Communication Error has occurred. ----- 210 HW Enbl Jmpr Out A Safety Option module is present and ENABLE Jumper is removed. Install the jumper. ----- 211 Safety Brd Fault A Safety option module has indicated a fault. Verify that ENABLE Jumper is installed. Reset or power cycle drive. ----- 212 Safety Jmpr Out SAFETY Jumper is not installed and a Safety option module is not present. Install the jumper. ----- 213 Safety Jumper In SAFETY Jumper is installed and a Safety option module is present. Remove the jumper. ----- 214 SafetyPortCnflct Allowable number of safety options exceeded. Only one safety option module can be installed at a time. ----- 224 Port 4 Comm Loss The device at the port has stopped communicating with the main control board. ----- 225 Port 5 Comm Loss The device at the port has stopped communicating with the main control board. ----- 226 Port 6 Comm Loss The device at the port has stopped communicating with the main control board. ----- 227 Port 7 Comm Loss The device at the port has stopped communicating with the main control board. ----- 228 Port 8 Comm Loss The device at the port has stopped communicating with the main control board. ----- 229 Port 9 Comm Loss The device at the port has stopped communicating with the main control board. ----- 230 Port 10 Comm Loss The device at the port has stopped communicating with the main control board. ----- 231 Port 11 Comm Loss The device at the port has stopped communicating with the main control board. ----- 232 Port 12 Comm Loss The device at the port has stopped communicating with the main control board. ----- 233 Port 13 Comm Loss The device at the port has stopped communicating with the main control board. ----- 234 Port 14 Comm Loss The device at the port has stopped communicating with the main control board. ----- 244 Port 4 Cfg The main control board does not have the correct option in the port. ----- 245 Port 5 Cfg The main control board does not have the correct option in the port. ----- 246 Port 6 Cfg The main control board does not have the correct option in the port. ----- 247 Port 7 Cfg The main control board does not have the correct option in the port. ----- 248 Port 8 Cfg The main control board does not have the correct option in the port. ----- 249 Port 9 Cfg The main control board does not have the correct option in the port. ----- 250 Port 10 Cfg The main control board does not have the correct option in the port. ----- 251 Port 11 Cfg The main control board does not have the correct option in the port. ----- 252 Port 12 Cfg The main control board does not have the correct option in the port. ----- 253 Port 13 Cfg The main control board does not have the correct option in the port. ----- 254 Port 14 Cfg The main control board does not have the correct option in the port. ----- 264 Port 4 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 265 Port 5 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 266 Port 6 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 267 Port 7 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 268 Port 8 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 269 Port 9 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 270 Port 10 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 271 Port 11 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 272 Port 12 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 273 Port 13 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 274 Port 14 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 281 Enet Checksum EtherNet/IP storage checksum failed. Data set to default values. ----- 282 DLX Checksum DeviceLogix storage checksum failed. Data set to default values. ----- 290 Prev Maint Reset Predictive maintenance function has reset an elapsed life parameter. ----- 291 HSFan Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 292 InFan Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 293 MtrBrng Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 294 MtrBrng Lube Predictive maintenance function has reached the event level. Perform maintenance. ----- 295 MachBrng Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 296 MachBrng Lube Predictive maintenance function has reached the event level. Perform maintenance. ----- 307 Port7InvalidCard Option not valid in that port. Remove option module. ----- 308 Port8InvalidCard Option not valid in that port. Remove option module. ----- 315 Excess Psn Err The absolute maximum Position Error value has been exceeded. ----- 318 OutCurShare PhU There is output current sharing imbalance between parallel inverters in the phase indicated that is greater than 15% of the inverter rated current. ----- 319 OutCurShare PhV There is output current sharing imbalance between parallel inverters in the phase indicated that is greater than 15% of the inverter rated current. ----- 320 OutCurShare PhW There is output current sharing imbalance between parallel inverters in the phase indicated that is greater than 15% of the inverter rated current. ----- 322 N-1 Operation Drive is operating with fewer inverters than the original parallel configuration. ----- 324 DC Bus Mismatch There is a bus voltage imbalance between parallel inverters that is greater than 50V DC. ----- 327 HS Temp Imbal U There is a heatsink temperature imbalance between parallel inverters in the phase indicated that is greater than 11.5 °C (52.7 °F). ----- 328 HS Temp Imbal V There is a heatsink temperature imbalance between parallel inverters in the phase indicated that is greater than 11.5 °C (52.7 °F). ----- 329 HS Temp Imbal W There is a heatsink temperature imbalance between parallel inverters in the phase indicated that is greater than 11.5 °C (52.7 °F). ----- 331 I1 Comm Loss A communications fault has occurred between the main control board and the power layer interface board on inverter n. ----- 332 I2 Comm Loss A communications fault has occurred between the main control board and the power layer interface board on inverter n. ----- 351 In Cur Share L1 There is an input current sharing imbalance between parallel converters in the AC line indicated that is greater than 15% of the converter rated current. ----- 352 In Cur Share L2 There is an input current sharing imbalance between parallel converters in the AC line indicated that is greater than 15% of the converter rated current. ----- 353 In Cur Share L3 There is an input current sharing imbalance between parallel converters in the AC line indicated that is greater than 15% of the converter rated current. ----- 357 In Vlt Imbal L12 There is a input line voltage imbalance between parallel converters in the AC lines indicated that is greater than 5% of the converter rated voltage. ----- 358 In Vlt Imbal L23 There is a input line voltage imbalance between parallel converters in the AC lines indicated that is greater than 5% of the converter rated voltage. ----- 359 In Vlt Imbal L31 There is a input line voltage imbalance between parallel converters in the AC lines indicated that is greater than 5% of the converter rated voltage. ----- 360 N-1 See Manual The number of active inverters has been reduced from the original parallel configuration. ----- 361 Rerate See Manual The drive rating has changed from the original parallel configuration. ----- 362 Cnv/Inv Mismatch There is a voltage class mismatch between the installed parallel inverters and converters. ----- 363 CBP/Inv Mismatch There is a voltage class mismatch between the installed parallel inverters and common DC bus precharge units. ----- 364 CBP Num Mismatch The number of active inverters and active common DC bus precharge units does not match. ----- 365 Zero Cnv/Prechrg No converter or common DC bus precharge unit exists. ----- 366 Cnv Num Mismatch The number of active inverters and active converters does not match. ----- 371 P1 Comm Loss A communications fault has occurred between the main control board and the DC precharge control board on the common DC bus precharge unit n. ----- 372 P2 Comm Loss A communications fault has occurred between the main control board and the DC precharge control board on the common DC bus precharge unit n. ----- 380 PWM FPGA Overrun The time limit on the PWM write to the FPGA was exceeded. ----- 918 Control Task Overload System resource utilization has been exceeded. Evaluate system resource allocation ----- 919 System Task Overload System resource utilization has been exceeded. Evaluate system resource allocation ----- 920 5 msec Task Overload System resource utilization has been exceeded. Evaluate system resource allocation ----- 14037 Net IO Timeout DeviceLogix has been disabled. ----- *IMPORTANT NOTE: Fault and Alarm event numbers between 3000 and 13999 are generated by a module installed in a port. Refer to Fault and Alarm DisplayCodes on page 283 for an explanation. For event numbers that fall between 13000 and 13999, refer to the PowerFlex 755 Drive EmbeddedEtherNet/IP Adapter User Manual. For fault codes > 10000 and for more information on fault codes, refer to the Troubleshooting section of the PowerFLex 750 manual linked below PowerFlex 750 Series Troubleshooting.pdf If the end result of your troubleshooting has determined that you have a defective PowerFlex 753 drive, or you’re just not sure, give us a call at 1-800-732-4695 to send your defective VFD in for repair. We have the experience necessary to get your defective PowerFlex 753 back in operation quickly with our quality repair service. Back To Blog
Allen Bradley PowerFlex 753 Fault Codes05/14/2021Troubleshooting an Allen Bradley PowerFlex 753 drive is not often necessary due to the robust nature of this drive series, but occasionally problems arise that necessitate a deeper dive into understanding the PowerFlex 753 fault codes and their meaning. Below are listed the PowerFlex 753 Fault Codes with event number, Fault/Alarm Text and the description of the faults. For more detailed information, see below for a link to the PowerFlex 750 troubleshooting guide. Fault Name/Description/Action 0 No Entry ----- 2 Aux Input An aux input interlock is open ----- 3 Power Loss DC bus voltage remained below 85% of nominal for longer than [Power Loss Time]. ----- 4 UnderVoltage If the bus voltage, P11 [DC Bus Volts] falls below the value set in P461 [UnderVltg Level] an undervoltage condition exists. ----- 5 OverVoltage The DC bus voltage exceeded the maximum value. See P11 [DC Bus Volts]. ----- 7 Motor Overload An internal electronic overload trip has occurred. See P7 [Output Current], P26 [Motor NP Amps, P413 [Mtr OL Factor], and/or P414 [Mtr OL Hertz]. ----- 8 Heatsink OvrTemp The heatsink temperature has exceeded 100% of the drive temperature. ----- 9 Trnsistr OvrTemp The output transistors have exceeded the maximum operating temperature. See P941 [IGBT Temp Pct] and/or P942 [IGBT Temp C]. ----- 10 DynBrake OvrTemp The dynamic brake resistor has exceeded its maximum operating temperature. Check settings of parameters P382 [DB Resistor Type] through P385 [DB ExtPulseWatts]. ----- 12 HW OverCurrent The drive output current has exceeded the hardware current limit. Megger test wiring to motor. ----- 13 Ground Fault A current path to earth ground greater than 25% of drive rating has occurred. ----- 14 Ground Warning The ground current has exceeded the level set in P467 [Ground Warn Lvl]. ----- 15 Load Loss The output torque current is below the value programmed in P442 [Load Loss Level] for a time period greater than the time programmed in P443 [Load Loss Time]. ----- 17 Input Phase Loss The DC bus ripple has exceeded a preset level. Increase the setting of P463 ----- 18 Motor PTC Trip Motor PTC (Positive Temperature Coefficient) over temperature. ----- 19 Task Overrun System resource utilization is at or above 90% of capacity. ----- 20 TorqPrv Spd Band The difference between P2 [Commanded SpdRef] and P3 [Mtr Vel Fdbk] has exceeded the level programmed in P1105 [Speed Dev Band] for a time period greater than the time programmed in P1106 [SpdBand Intgrtr]. ----- 21 Output PhaseLoss The current in one or more phases has been lost or remains below the threshold set in P445 [Out PhaseLossLvl] for one second. ----- 24 Decel Inhibit The drive is not following a commanded deceleration because it is attempting to limit the bus voltage. ----- 25 OverSpeed Limit The motor operating speed exceeds the limit set by the maximum speed setting P524 [Overspeed Limit]. ----- 26 Brake Slipped The encoder movement has exceeded the level in P1110 [Brk Slip Count] ----- 27 Torq Prove Cflct When P1100 [Trq Prove Cfg] is enabled, P35 [Motor Ctrl Mode] must be properly set, and P125 [Pri Vel Fdbk Sel] and P135 [Mtr Psn Fdbk Sel] must be set the same. If these parameters point to a feedback module, the module parameters must also be properly set. Does not work in PM FV mode. ----- 28 TP Encls Config Encoderless TorqProve has been enabled but user has not read and understood application concerns of encoderless operation. ----- 29 Analog In Loss Analog input has a lost signal. ----- 33 AuRsts Exhausted The drive unsuccessfully attempted to reset a fault and resume running for the programmed number of tries. ----- 35 IPM OverCurrent The current magnitude has exceeded the trip level set by P1640 [IPM Max Cur]. ----- 36 SW OverCurrent The drive output current has exceeded the 1 ms current rating. ----- 38 Phase U to Grnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 39 Phase V to Grnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 40 Phase W to Grnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 41 Phase UV Short Excessive current has been detected between these two output terminals. ----- 42 Phase VW Short Excessive current has been detected between these two output terminals. ----- 43 Phase UW Short Excessive current has been detected between these two output terminals. ----- 44 Phase UNegToGrnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 45 Phase VNegToGrnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 46 Phase WNegToGrnd A phase to ground fault has been detected between the drive and motor in this phase. ----- 48 System Defaulted The drive was commanded to write default values. ----- 49 Drive Powerup A Power Up Marker in the Fault Queue indicating that the drive power cycled. ----- 51 Clr Fault Queue Indication that the fault queue has been cleared. ----- 58 Module Defaulted The module was commanded to write default values. ----- 59 Invalid Code Internal error. ----- 61 Shear Pin 1 The programmed value in P436 [Shear Pin1 Level] has been exceeded. ----- 62 Shear Pin 2 The programmed value in P439 [Shear Pin2 Level] has been exceeded. ----- 64 Drive OverLoad P940 [Drive OL Count] has exceeded 50% but is less than 100%. ----- 67 Drive OverLoad Pump Off condition has been detected. ----- 71-76 Port Adapter (Port 1-6) The DPI communications option has a fault. See device event queue. ----- 77 IR Volts Range The default for P70 [Autotune] is 1 “Calculate” and the value calculated from the motor nameplate values returned a value for P73 [IR Voltage Drop] which is not in the range of acceptable values. ----- 78 FluxAmpsRef Rang The value for flux amps determined by the Autotune procedure exceeds the value programmed in P26 [Motor NP Amps]. ----- 79 Excessive Load The motor did not come up to speed in the allotted time during Autotune. ----- 80 AutoTune Aborted The Autotune function was manually canceled or a fault occurred. ----- 81-86 Port (1-6) DPI Loss DPI port stopped communicating. ----- 87 IXo VoltageRange The default for P70 [Autotune] is 1 “Calculate” and the voltage calculated for motor inductive impedance exceeds 25% of the value of P25 [Motor NP Volts]. ----- 91 Pri VelFdbk Loss A Feedback Loss has been detected for the source of P134 [Aux Vel Feedback]. ----- 93 Hw Enable Check Hardware enable is disabled (jumper installed) but indicates not enabled. ----- 94 Alt VelFdbk Loss A Feedback Loss has been detected for the source of P128 [Alt Vel Fdbk Sel]. ----- 95 Aux VelFdbk Loss A Feedback Loss has been detected for the source of P132 [Aux Vel Fdbk Sel]. ----- 96 PositionFdbkLoss A Feedback Loss has been detected for the source of P847 [Psn Fdbk]. ----- 97 Auto Tach Switch Indication that either of the two following conditions exists. • Tach switch has occurred and alternate feedback device has failed. • Tach switch has not occurred, Auto Tach Switch Option is enabled and both primary and alternate devices have failed. ----- 100 Parameter Chksum The checksum read from the non-volatile storage does not match the checksum calculated. Data set to default value. ----- 101 PwrDn NVS Blank Internal data error. • Reset parameter defaults. See publication 20HIM-UM001 for instructions. • Reload parameters. • If problem persists replace main control board. Fault normally occurs after a flash update to correct F117 fault. ----- 102 NVS Not Blank Internal data error. ----- 103 PwrDn NVS Incomp Internal data error. ----- 104 Pwr Brd Checksum The checksum read from the non-volatile storage does not match the checksum calculated. Data set to default value. ----- 106 Incompat MCB-PB The main control board did not recognize the power structure. Flash with newer Application version. ----- 107 Replaced MCB-PB The main control board was moved to a different power structure. Data set to default values. ----- 108 Anlg Cal Chksum The checksum read from the analog calibration data does not match the checksum calculated. Replace main control board. ----- 111 PwrBd Invalid ID Power structure ID invalid. Flash with newer Application version. ----- 112 PwrBd App MinVer Power structure needs newer Application version. Flash with newer Application version. ----- 113 Tracking DataErr Internal data error. ----- 115 PwrDn Table Full Internal data error. ----- 116 PwrDnEntry2Large Internal data error. ----- 117 PwrDn Data Chksm Internal data error. ----- 118 PwrBd PwrDn Chks Internal data error. ----- 124 App ID Changed Application Firmware changed. Verify Application version. ----- 125 Using Backup App Application did not flash correctly. Reflash. ----- 134 Start On PowerUp When P345 [Start At PowerUp] is enabled, an alarm will be set for the time programmed in P346 [PowerUp Delay]. ----- 137 Ext Prechrg Err The seal contact on the external precharge contactor has opened (as signalled by P190 [DI Prchrg Seal]) while the drive was running (PWM was active). ----- 138 Precharge Open The internal precharge was commanded to open while the drive was running (PWM was active). The internal fault latch will be automatically cleared when PWM is disabled. ----- 141 Autn Enc Angle P78 [Encdrlss AngComp] is out of range. ----- 142 Autn Spd Rstrct Frequency limit settings are preventing the drive from reaching a suitable speed during an Inertia Tune test. ----- 143 Autotune CurReg Calculated values for P96 [VCL Cur Reg Kp] and/or P97 [VCL Cur Reg Ki] are out of range. ----- 144 Autotune Inertia Results from the Inertia Tune test out of range for P76 [Total Inertia]. ----- 145 Autotune Travel When P77 [Inertia Test Lmt] is set, the Inertia Tune test was prevented from reaching a suitable speed to run the test. ----- 152 No Stop Source Last stop source has been removed. ----- 155 Bipolar Conflict P308 [Direction Mode] is set to 1 “Bipolar” or 2 “Rev Disable” and one or more digital input is enabled for direction control. ----- 157 DigIn Cfg B Digital input conflict. Input functions that cannot exist at the same time have been selected (for example run and start). Correct Digital Input configuration. ----- 158 DigIn Cfg C Digital input conflict. Input functions that cannot be assigned to the same digital input have been selected (for example run and stop). Correct Digital Input configuration. ----- 161 Sleep Config There is a Sleep/Wake configuration error. With Sleep Wake Mode = Direct, possible causes include: Drive is stopped and Wake Level < Sleep Level. Stop=CF, Run, Run Fwd, or Run Rev is not configured in Digital Input functions. ----- 162 Waking The Wake timer is counting toward a value that will start the drive. ----- 168 HeatSinkUnderTmp Heatsink temperature sensor is reporting a value below -18.7 °C (-1.66 °F) or the sensor feedback circuit is open. See P943 [Drive Temp Pct] and/or P944 [Drive Temp C]. ----- 169 PWM Freq Reduced The PWM Frequency has been reduced from the value set in P38 [PWM Frequency] due to excessive IGBT junction temperatures. See also P420 [Drive OL Mode]. ----- 170 CurLimit Reduced The current limit value has been reduced from the value set in [Current Limit n] due to excessive IGBT junction temperatures or P940 [Drive OL Count] = 95%. See also P420 [Drive OL Mode]. ----- 171 Adj Vltg Ref Invalid adjustable voltage reference selection conflict. ----- 175 Travel Lim Cflct Travel limits are in conflict. Both the forward and reverse travel limits indicate they are simultaneously active. ----- 177 Profiling Active The Profile/Indexer is active. ----- 178 Homing Active The Homing function is active. ----- 181 Fwd End Limit The selected digital input for one of the end limit switches, P196 [DI Fwd End Limit] or P198 [DI Rev End Limit], has detected a falling edge and P313 [Actv SpTqPs Mode] is not set to 1 “Speed Reg.” ----- 182 Rev End Limit The selected digital input for one of the end limit switches, P196 [DI Fwd End Limit] or P198 [DI Rev End Limit], has detected a falling edge and P313 [Actv SpTqPs Mode] is not set to 1 “Speed Reg.” ----- 185 Freq Conflict Indicates that the values of P520 [Max Fwd Speed] and P521 [Max Rev Speed] are in conflict with the value of P63 [Break Frequency]. ----- 186 VHz Neg Slope Indicates that the V/Hz curve segment resulted in a negative V/Hz slope. See P60 [Start Acc Boost] through P63 [Break Frequency]. ----- 187 VHz Boost Limit Indication that one of the two following conditions exists. • P60 [Start/Acc Boost] and P61 [Run Boost] are greater than P25 [Motor NP Volts] x 0.25 when P65 [VHz Curve] = 0 “Custom V/Hz.” • P61 [Run Boost] is greater than P25 [Motor NP Volts] x 0.25 when P65 [VHz Curve] = 1 “Fan/Pump.” ----- 190 PM FV Pri Fdbk Indicates a control mode and primary feedback device configuration error. ----- 191 PM FV Alt Fdbk Indicates a control mode and alternate feedback device configuration error. ----- 192 Fwd Spd Lim Cfg The forward speed reference is out of range. ----- 193 Rev Spd Lim Cfg The reverse speed reference is out of range. ----- 194 PM Offset Conflict Both P80 [PM Cfg] bit 0 “AutoOfstTest” and bit 2 “StaticTestEn” are set. Select only one. ----- 195 IPMSpdEstErr Speed Estimator failed to track High Speed angle. ----- 196 PM FS Cflct Attempted to set P356 [FlyingStart Mode] to 2 “Sweep” with a permanent magnet motor selected in P35 [Motor Ctrl Mode]. ----- 201 SpdReg DL Err Attempted to establish a Datalink to P644 [Spd Err Flt BW], P645 [Speed Reg KP], or P647 [Speed Reg Ki] and P636 [Speed Reg BW] is set to a value other than zero. ----- 202 AltSpdReg DL Err Attempted to establish a Datalink to P649 [Alt Speed Reg Kp], P650 [Alt Speed Reg Ki], or P651 AltSpdErr FltrBW] and P648 [Alt Speed Reg BW] is set to a value other than zero.. ----- 203 Port 13 Adapter The embedded EtherNet/IP adapter has a fault. See EtherNet event queue. ----- 204 Port 14 Adapter The DeviceLogix adapter has a fault. ----- 205 DPI TransportErr A DPI Communication Error has occurred. ----- 210 HW Enbl Jmpr Out A Safety Option module is present and ENABLE Jumper is removed. Install the jumper. ----- 211 Safety Brd Fault A Safety option module has indicated a fault. Verify that ENABLE Jumper is installed. Reset or power cycle drive. ----- 212 Safety Jmpr Out SAFETY Jumper is not installed and a Safety option module is not present. Install the jumper. ----- 213 Safety Jumper In SAFETY Jumper is installed and a Safety option module is present. Remove the jumper. ----- 214 SafetyPortCnflct Allowable number of safety options exceeded. Only one safety option module can be installed at a time. ----- 224 Port 4 Comm Loss The device at the port has stopped communicating with the main control board. ----- 225 Port 5 Comm Loss The device at the port has stopped communicating with the main control board. ----- 226 Port 6 Comm Loss The device at the port has stopped communicating with the main control board. ----- 227 Port 7 Comm Loss The device at the port has stopped communicating with the main control board. ----- 228 Port 8 Comm Loss The device at the port has stopped communicating with the main control board. ----- 229 Port 9 Comm Loss The device at the port has stopped communicating with the main control board. ----- 230 Port 10 Comm Loss The device at the port has stopped communicating with the main control board. ----- 231 Port 11 Comm Loss The device at the port has stopped communicating with the main control board. ----- 232 Port 12 Comm Loss The device at the port has stopped communicating with the main control board. ----- 233 Port 13 Comm Loss The device at the port has stopped communicating with the main control board. ----- 234 Port 14 Comm Loss The device at the port has stopped communicating with the main control board. ----- 244 Port 4 Cfg The main control board does not have the correct option in the port. ----- 245 Port 5 Cfg The main control board does not have the correct option in the port. ----- 246 Port 6 Cfg The main control board does not have the correct option in the port. ----- 247 Port 7 Cfg The main control board does not have the correct option in the port. ----- 248 Port 8 Cfg The main control board does not have the correct option in the port. ----- 249 Port 9 Cfg The main control board does not have the correct option in the port. ----- 250 Port 10 Cfg The main control board does not have the correct option in the port. ----- 251 Port 11 Cfg The main control board does not have the correct option in the port. ----- 252 Port 12 Cfg The main control board does not have the correct option in the port. ----- 253 Port 13 Cfg The main control board does not have the correct option in the port. ----- 254 Port 14 Cfg The main control board does not have the correct option in the port. ----- 264 Port 4 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 265 Port 5 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 266 Port 6 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 267 Port 7 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 268 Port 8 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 269 Port 9 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 270 Port 10 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 271 Port 11 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 272 Port 12 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 273 Port 13 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 274 Port 14 Checksum A option module storage checksum failed. Option data has been set to default values. ----- 281 Enet Checksum EtherNet/IP storage checksum failed. Data set to default values. ----- 282 DLX Checksum DeviceLogix storage checksum failed. Data set to default values. ----- 290 Prev Maint Reset Predictive maintenance function has reset an elapsed life parameter. ----- 291 HSFan Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 292 InFan Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 293 MtrBrng Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 294 MtrBrng Lube Predictive maintenance function has reached the event level. Perform maintenance. ----- 295 MachBrng Life Predictive maintenance function has reached the event level. Perform maintenance. ----- 296 MachBrng Lube Predictive maintenance function has reached the event level. Perform maintenance. ----- 307 Port7InvalidCard Option not valid in that port. Remove option module. ----- 308 Port8InvalidCard Option not valid in that port. Remove option module. ----- 315 Excess Psn Err The absolute maximum Position Error value has been exceeded. ----- 318 OutCurShare PhU There is output current sharing imbalance between parallel inverters in the phase indicated that is greater than 15% of the inverter rated current. ----- 319 OutCurShare PhV There is output current sharing imbalance between parallel inverters in the phase indicated that is greater than 15% of the inverter rated current. ----- 320 OutCurShare PhW There is output current sharing imbalance between parallel inverters in the phase indicated that is greater than 15% of the inverter rated current. ----- 322 N-1 Operation Drive is operating with fewer inverters than the original parallel configuration. ----- 324 DC Bus Mismatch There is a bus voltage imbalance between parallel inverters that is greater than 50V DC. ----- 327 HS Temp Imbal U There is a heatsink temperature imbalance between parallel inverters in the phase indicated that is greater than 11.5 °C (52.7 °F). ----- 328 HS Temp Imbal V There is a heatsink temperature imbalance between parallel inverters in the phase indicated that is greater than 11.5 °C (52.7 °F). ----- 329 HS Temp Imbal W There is a heatsink temperature imbalance between parallel inverters in the phase indicated that is greater than 11.5 °C (52.7 °F). ----- 331 I1 Comm Loss A communications fault has occurred between the main control board and the power layer interface board on inverter n. ----- 332 I2 Comm Loss A communications fault has occurred between the main control board and the power layer interface board on inverter n. ----- 351 In Cur Share L1 There is an input current sharing imbalance between parallel converters in the AC line indicated that is greater than 15% of the converter rated current. ----- 352 In Cur Share L2 There is an input current sharing imbalance between parallel converters in the AC line indicated that is greater than 15% of the converter rated current. ----- 353 In Cur Share L3 There is an input current sharing imbalance between parallel converters in the AC line indicated that is greater than 15% of the converter rated current. ----- 357 In Vlt Imbal L12 There is a input line voltage imbalance between parallel converters in the AC lines indicated that is greater than 5% of the converter rated voltage. ----- 358 In Vlt Imbal L23 There is a input line voltage imbalance between parallel converters in the AC lines indicated that is greater than 5% of the converter rated voltage. ----- 359 In Vlt Imbal L31 There is a input line voltage imbalance between parallel converters in the AC lines indicated that is greater than 5% of the converter rated voltage. ----- 360 N-1 See Manual The number of active inverters has been reduced from the original parallel configuration. ----- 361 Rerate See Manual The drive rating has changed from the original parallel configuration. ----- 362 Cnv/Inv Mismatch There is a voltage class mismatch between the installed parallel inverters and converters. ----- 363 CBP/Inv Mismatch There is a voltage class mismatch between the installed parallel inverters and common DC bus precharge units. ----- 364 CBP Num Mismatch The number of active inverters and active common DC bus precharge units does not match. ----- 365 Zero Cnv/Prechrg No converter or common DC bus precharge unit exists. ----- 366 Cnv Num Mismatch The number of active inverters and active converters does not match. ----- 371 P1 Comm Loss A communications fault has occurred between the main control board and the DC precharge control board on the common DC bus precharge unit n. ----- 372 P2 Comm Loss A communications fault has occurred between the main control board and the DC precharge control board on the common DC bus precharge unit n. ----- 380 PWM FPGA Overrun The time limit on the PWM write to the FPGA was exceeded. ----- 918 Control Task Overload System resource utilization has been exceeded. Evaluate system resource allocation ----- 919 System Task Overload System resource utilization has been exceeded. Evaluate system resource allocation ----- 920 5 msec Task Overload System resource utilization has been exceeded. Evaluate system resource allocation ----- 14037 Net IO Timeout DeviceLogix has been disabled. ----- *IMPORTANT NOTE: Fault and Alarm event numbers between 3000 and 13999 are generated by a module installed in a port. Refer to Fault and Alarm DisplayCodes on page 283 for an explanation. For event numbers that fall between 13000 and 13999, refer to the PowerFlex 755 Drive EmbeddedEtherNet/IP Adapter User Manual. For fault codes > 10000 and for more information on fault codes, refer to the Troubleshooting section of the PowerFLex 750 manual linked below PowerFlex 750 Series Troubleshooting.pdf If the end result of your troubleshooting has determined that you have a defective PowerFlex 753 drive, or you’re just not sure, give us a call at 1-800-732-4695 to send your defective VFD in for repair. We have the experience necessary to get your defective PowerFlex 753 back in operation quickly with our quality repair service.