Fanuc Series 30i

This alarm indicates that the internal cooling fan within the Servo Amplifier Module (SVM) has stopped operating. The fan is critical for dissipating heat generated by the inverter's power components. A stopped fan will lead to rapid overheating of the SVM, potentially causing thermal shutdown or damage.

This alarm indicates an undervoltage condition in the control power supply of the Servo Amplifier Module (SVM). The control power supply (typically 24VDC) is essential for the internal logic and control circuitry of the inverter. A voltage drop below 22.8V can cause erratic behavior or module shutdown.

The alarm indicates that the temperature of the main circuit heat sink within the Power Supply Module (PSM) has risen abnormally. This condition can lead to thermal stress on power components and potential module failure if not addressed. It implies a failure in heat dissipation.

This alarm indicates that the DC voltage (DC link) in the main circuit of the Power Supply Module (PSM) or Power Supply Module with Regenerative (PSMR) has dropped below its operational threshold. An undervoltage condition on the DC link can lead to unstable operation or shutdown of connected drive modules.

The main circuit capacitor within the PSM or PSMR unit failed to recharge within the specified time. This can indicate an issue with the power supply capability, a short circuit in the DC link, or a component failure in the recharge circuit. Failure to recharge can prevent the unit from powering up or operating correctly.

This code indicates one of two distinct issues depending on the equipment type. For PSM or PSMR units, it signifies a decrease in the control power supply voltage, which can disrupt the unit's operation. For Inverter units, it indicates an overheat condition that can be caused by various environmental or operational factors, potentially leading to equipment damage or shutdown.

The DC voltage at the main circuit DC link is abnormally high. This typically occurs due to excessive regenerated power that the PSM cannot dissipate, or issues with the AC power source's output impedance. An overvoltage condition risks damage to DC link components and connected modules.

This alarm occurs in the Power Supply Module with Regenerative (PSMR) when the system experiences excessive short-term regenerative power. This condition indicates that the energy generated by the motor during deceleration or braking exceeds the capacity of the regenerative resistance or circuit. It can lead to overvoltage on the DC link or damage to the regenerative components.

An Intelligent Power Module (IPM) overheat alarm has occurred for the L-axis. This indicates the IPM for the L-axis is operating at an excessively high temperature. This typically results from the motor being used under harsh conditions (e.g., heavy load) or a high ambient temperature around the SVM.

An Intelligent Power Module (IPM) overheat alarm has occurred for the M-axis. This indicates the IPM for the M-axis is operating at an excessively high temperature. This typically results from the motor being used under harsh conditions (e.g., heavy load) or a high ambient temperature around the SVM.

This alarm indicates that a cooling fan associated with the external cooling fin of the Power Supply Module (PSM) has stopped. This failure impairs the module's ability to dissipate heat effectively, risking overheating of power components if not resolved promptly. It can also be triggered by internal connection issues.

An Intelligent Power Module (IPM) overheat alarm has occurred for the N-axis. This indicates the IPM for the N-axis is operating at an excessively high temperature. This typically results from the motor being used under harsh conditions (e.g., heavy load) or a high ambient temperature around the SVM.

An abnormal current condition has been detected in the DC link for the L-axis. This can be caused by short-circuits or ground faults in power leads or motor windings, an incorrect motor ID setting, or a failure of the motor or SVM itself.

An abnormality is detected in the inverter's control power supply. This can stem from a failure in the JF* connector or cable, or issues with the motor itself or the SVM. This fault prevents stable operation of the inverter.

An abnormal current condition has been detected in the DC link for the M-axis. This can be caused by short-circuits or ground faults in power leads or motor windings, an incorrect motor ID setting, or a failure of the motor or SVM itself.

An abnormal current condition has been detected in the DC link for the N-axis. This can be caused by short-circuits or ground faults in power leads or motor windings, an incorrect motor ID setting, or a failure of the motor or SVM itself.

This alarm signifies an abnormal input power supply condition, specifically an open phase in the incoming AC power to the Power Supply Module (PSM) or Power Supply Module with Regenerative (PSMR). An open phase means one or more phases of the three-phase input voltage are missing, which can prevent the module from operating or lead to unbalanced operation.

The cooling fan for the inverter radiator has stopped operating. This condition leads to inadequate heat dissipation, risking the inverter unit (SVM) overheating and potentially causing damage or shutdown.

A communication error has occurred between the amplifier and its module. This prevents proper data exchange and control signals, which can lead to system malfunction or inability to operate the connected equipment.

A communication error has occurred on the FSSB (FANUC Serial Servo Bus) via the COP10B connector. This indicates a problem with the COP10B connector or cable, the SVM, or the CNC unit, preventing proper data exchange for servo control.