6.3 Drive Alarms, Faults, and Errors 6.3 Drive Alarms, Faults, and Errors u Types of Alarms, Faults, and Errors Check the LED operator for information about possible faults if the drive or motor fails to operate. Refer to Using the Digital LED Operator on page 54 . If problems occur that are not covered in this manual, contact the nearest OYMC representative with the following information: • Drive model • Software version • Date of purchase • Description of the problem Table 6.3 contains descriptions of the various types of alarms, faults, and errors that may occur while operating the drive.
Table 6.3 Types of Alarms, Faults, and Errors u Alarm and Error Displays When the drive detects a fault, the ALM indicator LEDs remain lit without flashing. If the LEDs flash, the drive has detected a minor fault or alarm. Refer to Minor Faults and Alarms on page 122 for more information. Conditions such as overvoltage or external faults can trip both faults and minor faults, therefore it is important to note whether the LEDs remain lit or if the LEDs flash. n Faults Table 6.4 Fault Displays Troubleshooting 6 Uv3 Soft Charge Circuit Fault 127 SIEP C710606 33A OYMC AC Drive – J1000 User Manual 121 Type Drive Responses to Alarms, Faults, and Errors Faults When the drive detects a fault:
• The digital operator displays text that indicates the specific fault and the ALM indicator LED remains lit until the fault is reset. • The fault interrupts drive output and the motor coasts to a stop. • Depending on the setting, the drive and motor may stop via different methods than listed. • If a digital output is programmed for fault output (H2-01 = E), it will close if a fault occurs. When the drive detects a fault, it will remain inoperable until that fault has been reset. Refer to Fault Reset Methods on page 133. Minor Faults and Alarms When the drive detects an alarm or a minor fault:
• The digital operator displays text that indicates the specific alarm or minor fault and the ALM indicator LED flashes. • The motor does not stop. • The multi-function contact output closes if set to be tripped by a minor fault (H2-01 = 10), but not by an alarm. • The digital operator displays text indicating a specific alarm and ALM indicator LED flashes. Remove the cause of an alarm or minor fault to automatically reset. Operation Errors When parameter settings conflict with one another or do not match hardware settings (such as with an option unit), it results in an operation error. When the drive detects an operation error:
• The digital operator displays text that indicates the specific error. • The multi-function contact output does not operate. When the drive detects an operation error, it will not operate the motor until the error has been reset. Correct the settings that caused the operation error to reset.
LED Operator Display Name Page CE MEMOBUS/Modbus Communication Error 123 or CoF CPF00 or CPF01 Current Offset Fault CPF11 – RAM Fault 123 123 CPF12 – FLASH Memory Fault 123 CPF14 – Control Circuit Fault CPF17 – Timing Fault 123 123 CPF18 – Control Circuit Fault 123 CPF02 A/D Conversion Error 123 CPF06 Drive specification mismatch during Terminal Board or Control Board replacement 123 CPF08 EEPROM Serial Communications Fault 123 or CPF20 or CPF21 CPF22 RAM Fault FLASH Memory Fault 123 123 Watchdog Circuit Exception Clock Fault A/D Conversion Error 123 123 124 LED Operator Display Name Page CPF23 PWM Feedback Data Fault 124 CPF24 Drive Capacity Signal Fault 124 to EF0 EF1 to EF5 Option Unit External Fault External Fault (input terminal S1 to S5) 124 124 Err oC EEPROM Write Error Overcurrent 124 124 oFA01 Option Disconnected 125 oH1 Heatsink Overheat 125 oL1 Motor Overload 125 oL2 Drive Overload 126 oL3 Overtorque Detection 1 126 oPr Operator Connection Fault 126 ov PF Overvoltage Input Phase Loss 130 127 rH Uv1 Dynamic Braking Resistor Undervoltage 127 127