# Redline VFD Spindle Error Codes (FAQ) **URL:** https://forum.onefinitycnc.com/t/redline-vfd-spindle-error-codes-faq/31468 **Category:** Error Codes **Created:** [March 11, 2025, 2:32pm UTC](https://forum.onefinitycnc.com/t/redline-vfd-spindle-error-codes-faq/31468 "2025-03-11T14:32:46Z") **Posts on this page:** 1 **Page:** 1
### Author: ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC) #### Post date: [March 11, 2025, 2:32pm UTC](https://forum.onefinitycnc.com/t/redline-vfd-spindle-error-codes-faq/31468/1 "2025-03-11T14:32:46Z")
**Errors Codes on the Onefinity Spindle Kit by Redline CNC VFD Display used for troubleshooting** * * * **Error 1:** Description: Over-current at constant speed - The output current exceeds the over-current value while the frequency inverter is running at a constant speed Troubleshooting: - Check cables to ensure they are properly connected - Check your wall outlet voltage to see if it’s low - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 2:** Description: Over-current at acceleration - When the frequency inverter accelerates, output current exceeds over-current Troubleshooting: - Check cables to ensure they are properly connected - Check your wall outlet voltage to see if it’s low - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 3:** Description: Over-current at deceleration - When the frequency inverter decelerates, output current exceeds over-current Troubleshooting: - Check cables to ensure they are properly connected - Check your wall outlet voltage to see if it’s low - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 4:** Description: Over-voltage at constant speed - When the frequency inverter runs at constant speed, DC voltage of the main circuit exceeds this set value. Detected DC over-voltage value: Level T2 : 400V Troubleshooting: - Check cables to ensure they are properly connected - Check your wall outlet voltage to see if it’s high - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 5:** Description: Over-voltage at acceleration - When the frequency inverter runs at constant speed, DC voltage of the main circuit exceeds this set value. The detected over-voltage value is the same as above. Troubleshooting: - Check cables to ensure they are properly connected - Check your wall outlet voltage to see if it’s high - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 6:** Description: Over-voltage at deceleration - When the frequency inverter runs at constant speed, DC voltage of the main circuit exceeds this set value. The detected over-voltage value is the same as above. Troubleshooting: - Check cables to ensure they are properly connected - Check your wall outlet voltage to see if it’s high - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 7:** Description: Module fault - External fault has triggered automatic module protection Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 8:** Description: Under-voltage - Under-voltage in the main circuit, check the electric level: Detected DC under-voltage value: Level T2 : 190V Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 9:** Description: Frequency inverter overloaded - Motor and current exceed the rated load Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 10:** Description: Motor overload - Motor and current exceed the rated current Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 11:** Description: Missing phase - Error of missing phase or unbalanced three phases Troubleshooting: - Check cables to ensure they are properly connected - Check wall circuit voltage for missing phase or unbalanced three phases - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 12:** Description: Output Default Failure - Output Default Failure or 3-phase Imbalance Fault Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 13:** Description: External Fault - Fault caused by External Control Circuits Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 14:** Description: Abnormal Communication - Abnormity for communication of frequency inverter and other equipment Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 15:** Description: Frequency inverter Overheat - Radiator temperature ≥ oh Detection Value (about 80℃, from temperature switch) Troubleshooting: - Check cables to ensure they are properly connected - Check to ensure spindle motor fan is running - Check whether the surrounding temperature is too high and cooling measures are required - Clear dirt, dust, debris from the air intake on the top of the spindle motor - Contact technical support **Error 16:** Description: Hardware Fault of Frequency inverter - In case of over-current or over-voltage existed in frequency inverter, it is judged as hardware fault Troubleshooting: - Check cables to ensure they are properly connected - Check your wall outlet voltage to see if it’s low or high - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 17:** Description: Motor-to-ground short circuit - Motor-to-ground short circuit Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 18:** Description: Motor Identification Error - When conducting the parameter identification, the fault occurs in motor Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 19:** Description: Motor Off-load - Refer to the value of running current less than off-load current P6.1.19 and duration of P6.1.20 Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 20:** Description: PID Feedback Loss Refer to the value of PID feedback value less than value of P4.0.18 and duration of P4.0.19 Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 21:** Description: User-Defined Fault 1 - Fault 1 Signal given by the users through multi-functional terminals or PLC Programming Function Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 22:** Description: User-Defined Fault 2 - Fault 2 Signal given by the users through multi-functional terminals or PLC Programming Function Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 23:** Description: Accumulative Power-on Time Arrival - Refer to the time given by accumulative power-on time arrival P5.1.01 of the frequency inverter Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 24:** Description: Accumulative Running Time Arrival - Refer to the time given by accumulative power-on time arrival P5.1.00 of the frequency inverter Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 25:** Description: Encoder Fault - The frequency inverter is unable to identify the data of the encoder Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 26:** Description: Parameter Read-Write Abnormity - Damage of EEPROM Chip Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 27:** Description: Motor Overheat - Detection on excessive temperature of the motor Troubleshooting: - Check whether the temperature of the motor is too high - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 28:** Description: Larger Speed Deviation - Refer to the value of speed deviation larger than P6.1.23 and duration of P6.1.24 Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 29:** Description: Motor Over-speed Refer to the value of motor speed over P6.1.21 and duration of P6.1.22 Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 30:** Description: Initial Position Error - Large deviation between motor parameters and actual parameters Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 31:** Description: Current Detection Fault - Circuit fault after current detection Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 32:** Description: Contactor Abnormal power supply of driver board caused by the fault of the contactor Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 33:** Description: Abnormity of Current Detection - Circuit fault after current detection leads to abnormal current detection value Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 34:** Description: Fast Current-limiting Timeout - The running current of the frequency inverter continues to be larger, which exceeds allowable current–limit time Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 35:** Description: Motor Switch at Running - Conduct motor switch in the running process of the frequency inverter Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support **Error 36:** Description: Power Fault - External 24V power supply is short circuit or the load of External 24V power supply is too large Troubleshooting: - Check cables to ensure they are properly connected - Contact technical support **Error 40:** Description: Buffer Resistance - The bus voltage fluctuates strongly Troubleshooting: - Check cables to ensure they are properly connected - Conduct VFD Programming Factory Reset and manually input programming codes found in Redline CNC Spindle Kit User Manual - Contact technical support