Magnetek GPD 503 fault codes11/26/2018The following lists the faults for the Magnetek GPD 503 series drives by code number and describes each. The fault name is shown along with some possible causes of the faults.bb (blinking) External Base Block commandBase Block command at multi-function terminal is active, shutting off GPD 503 output (motor coasting). Temporary condition, cleared when input command is removed.bUS Transmission error Control data cannot be received normally for longer than 2 seconds.CALL Communication ready Drive is waiting for the PLC to establish communication.CPF00Transmission error or control function hardware fault (including internal RAM, external RAM or PROM)Transmission between GPD 503 and remote operator is not established within 5 seconds after the power supply is turned on. (Displayed on the remote operator.)CPF01 Transmission error Transmission error occurs 2 seconds or more after transmission has first been established.CPF02 Base block circuit failure GPD 503 failure.CPF03 NV-RAM (S-RAM) fault GPD 503 failure.CPF04 NV-RAM (BCC, Access Code) faultGPD 503 failure. This fault may be caused after changing EPROM chips. Perform a Sn-03 Reset operation to attempt to clear this fault.CPF05 A/D converter failure in CPU GPD 503 failure.CPF06 Optional connection failure Improper installation or wiring of option card.CPF20 A/D converter failure Defective option card.CPF21 Transmission interface card (option) self-analysis function faultDefective option card. Check option card connector for proper installation.CPF22 Model code fault Defective option card. Check option card connector for proper installation.CPF23 Mutual-analysis function faultDefective option card. Check option card connector for proper installation.EF (blinking) Simultaneous forward and reverse operation commandsFwd Run and Rev Run commands are both closed for more than 500 ms. Removing one command will allow drive operation.EF0 External fault GPD 503 is in Stop mode.EF3 Ext. fault signal at term. 3 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF5 Ext. fault signal at term. 5 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF6 Ext. fault signal at term. 6 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF7 Ext. fault signal at term. 7 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF8 Ext. fault signal at term. 8 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.Err Constant write-in fault Temporary display, in Program mode, indicating that constant setting was not written into EPROM memory.FAn Cooling fan failure GPD 503 is in Stop mode.FU Fuse blown DC Bus fuse has cleared. Check for short circuit in output, and check main circuit transistors.GF Ground fault protection Ground current > approx. 50% of the GPD 503 rated current.oC Overcurrent GPD 503 output current exceeds 200% of GPD 503 rated current, or ground fault has occurred, with ground current exceeding 50% of GPD 503 rated current.oH Heat sink overheated Fin temperature exceeds 90° C (194° F)oH2 (blinking)External overheat External temperature monitoring circuit(s) detected an overtemperature condition and produced an input signal.oL1 Overload Thermal motor overload protection has tripped.oL2 Overload GPD 503 overload protection has tripped.oL3 (blinking) Overload GPD 503 output torque exceeds the set Overtorque Detection level, but GPD 503 is programmed for continued operation at overtorque detection.oL3 Overload GPD 503 output torque exceeds the set Overtorque Detection level, and GPD 503 is programmed for coast to stop at overtorque detection.oPE01kVA constant setting fault Sn-01 setting is incorrect.oPE02Constant setting range fault An-XX, bn-XX, Cn-XX, or Sn-XX setting range fault.oPE03Constant set value fault Sn-15 to -18 (multi-function input) set value fault.oPE04Constant set value fault PG constant, number of poles, or PG division rate set incorrectly.oPE10Constant set value fault Cn-02 to -08 (V/f data) set incorrectly.oPE11Constant set value fault One of the following conditions was detected: • Cn-23 > 5 KHz and Cn-24 5 KHz or • Cn-25 > 6 and Cn-24 > Cn-23ou (blinking)Overvoltage Internal monitor of DC Bus voltage indicates that input AC power is excessively high, while GPD 503 is in stopped condition.ou Overvoltage (OV) Detection level: Approx. 400V for 230V; Approx. 800V for 460V; Approx. 1000V for 575V.rr Regenerative transistor Failure Dynamic Braking resistor has failed.rH Braking resistor unit overheatedDynamic Braking resistor has overheated.Uu (blinking)Low voltage (Power UV) Internal monitor of DC Bus voltage indicates that input AC power is below Undervoltage detection level, while the GPD 503 is in stopped condition.Uu1 Low voltage (Power UV)Occurs two seconds after detection of low voltage.Uu2 Low voltage Control UV)Control circuit voltage levels drop below acceptable levels during operation.Uu3 Low voltage (MC-ANS fault)Main circuit magnetic contactor does not operate correctly.If after taking the appropriate troubleshooting steps, you're not able to clear the fault and return to operation, call on the repair experts at PES at 800-732-4695. Back To Blog
Magnetek GPD 503 fault codes11/26/2018The following lists the faults for the Magnetek GPD 503 series drives by code number and describes each. The fault name is shown along with some possible causes of the faults.bb (blinking) External Base Block commandBase Block command at multi-function terminal is active, shutting off GPD 503 output (motor coasting). Temporary condition, cleared when input command is removed.bUS Transmission error Control data cannot be received normally for longer than 2 seconds.CALL Communication ready Drive is waiting for the PLC to establish communication.CPF00Transmission error or control function hardware fault (including internal RAM, external RAM or PROM)Transmission between GPD 503 and remote operator is not established within 5 seconds after the power supply is turned on. (Displayed on the remote operator.)CPF01 Transmission error Transmission error occurs 2 seconds or more after transmission has first been established.CPF02 Base block circuit failure GPD 503 failure.CPF03 NV-RAM (S-RAM) fault GPD 503 failure.CPF04 NV-RAM (BCC, Access Code) faultGPD 503 failure. This fault may be caused after changing EPROM chips. Perform a Sn-03 Reset operation to attempt to clear this fault.CPF05 A/D converter failure in CPU GPD 503 failure.CPF06 Optional connection failure Improper installation or wiring of option card.CPF20 A/D converter failure Defective option card.CPF21 Transmission interface card (option) self-analysis function faultDefective option card. Check option card connector for proper installation.CPF22 Model code fault Defective option card. Check option card connector for proper installation.CPF23 Mutual-analysis function faultDefective option card. Check option card connector for proper installation.EF (blinking) Simultaneous forward and reverse operation commandsFwd Run and Rev Run commands are both closed for more than 500 ms. Removing one command will allow drive operation.EF0 External fault GPD 503 is in Stop mode.EF3 Ext. fault signal at term. 3 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF5 Ext. fault signal at term. 5 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF6 Ext. fault signal at term. 6 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF7 Ext. fault signal at term. 7 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.EF8 Ext. fault signal at term. 8 A fault condition has occurred in the external circuit(s) monitored by the contact providing input to the indicated terminal. If display is steady, GPD 503 is in Stop mode; if display is blinking, the terminal is programmed to allow continued operation after receiving fault input.Err Constant write-in fault Temporary display, in Program mode, indicating that constant setting was not written into EPROM memory.FAn Cooling fan failure GPD 503 is in Stop mode.FU Fuse blown DC Bus fuse has cleared. Check for short circuit in output, and check main circuit transistors.GF Ground fault protection Ground current > approx. 50% of the GPD 503 rated current.oC Overcurrent GPD 503 output current exceeds 200% of GPD 503 rated current, or ground fault has occurred, with ground current exceeding 50% of GPD 503 rated current.oH Heat sink overheated Fin temperature exceeds 90° C (194° F)oH2 (blinking)External overheat External temperature monitoring circuit(s) detected an overtemperature condition and produced an input signal.oL1 Overload Thermal motor overload protection has tripped.oL2 Overload GPD 503 overload protection has tripped.oL3 (blinking) Overload GPD 503 output torque exceeds the set Overtorque Detection level, but GPD 503 is programmed for continued operation at overtorque detection.oL3 Overload GPD 503 output torque exceeds the set Overtorque Detection level, and GPD 503 is programmed for coast to stop at overtorque detection.oPE01kVA constant setting fault Sn-01 setting is incorrect.oPE02Constant setting range fault An-XX, bn-XX, Cn-XX, or Sn-XX setting range fault.oPE03Constant set value fault Sn-15 to -18 (multi-function input) set value fault.oPE04Constant set value fault PG constant, number of poles, or PG division rate set incorrectly.oPE10Constant set value fault Cn-02 to -08 (V/f data) set incorrectly.oPE11Constant set value fault One of the following conditions was detected: • Cn-23 > 5 KHz and Cn-24 5 KHz or • Cn-25 > 6 and Cn-24 > Cn-23ou (blinking)Overvoltage Internal monitor of DC Bus voltage indicates that input AC power is excessively high, while GPD 503 is in stopped condition.ou Overvoltage (OV) Detection level: Approx. 400V for 230V; Approx. 800V for 460V; Approx. 1000V for 575V.rr Regenerative transistor Failure Dynamic Braking resistor has failed.rH Braking resistor unit overheatedDynamic Braking resistor has overheated.Uu (blinking)Low voltage (Power UV) Internal monitor of DC Bus voltage indicates that input AC power is below Undervoltage detection level, while the GPD 503 is in stopped condition.Uu1 Low voltage (Power UV)Occurs two seconds after detection of low voltage.Uu2 Low voltage Control UV)Control circuit voltage levels drop below acceptable levels during operation.Uu3 Low voltage (MC-ANS fault)Main circuit magnetic contactor does not operate correctly.If after taking the appropriate troubleshooting steps, you're not able to clear the fault and return to operation, call on the repair experts at PES at 800-732-4695.