Yaskawa Drive Fault Codes

A communication error has occurred on the MEMOBUS/Modbus network, preventing the drive from exchanging data correctly with a master controller or other devices. This can lead to loss of remote control, monitoring, or coordinated operation.

An error in the Analog-to-Digital (A/D) conversion circuit, which is responsible for converting analog input signals (e.g., speed reference, feedback) into digital values for the drive's control system. This impacts the accuracy or availability of analog inputs, potentially leading to incorrect operation.

An issue with the physical connection between the main control board and another internal drive component or module. This can prevent proper communication and operation of the drive, leading to unpredictable behavior or complete shutdown.

An error detected in the drive's EEPROM (Electrically Erasable Programmable Read-Only Memory), where parameters and operational data are stored. This can indicate data corruption or a faulty memory chip, potentially causing the drive to operate with incorrect settings or fail to store new ones.

An error related to the connection of the drive's terminal board, which provides external input/output connections (e.g., digital inputs, analog outputs). This can lead to loss of external control signals or incorrect feedback, causing operational issues.

Similar to CPF07, this indicates a connection issue with the drive's terminal board. This could be a specific type of connection error or related to a different terminal board than CPF07, impacting specific external I/O functions.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

An error detected in a Hybrid Integrated Circuit (IC) within the drive, typically related to power control or signal processing functions. Hybrid ICs are complex components, and a fault here usually indicates internal damage, affecting drive stability or output.

An issue with the physical connection of the main control board, similar to CPF03, implying a critical link between central processing and other drive sections is compromised. This impacts the overall drive functionality and can lead to operational failures.

A general fault indicating an issue with an internal signal within the drive unit, possibly related to data integrity or synchronization between different drive sub-systems. This points to an internal electronic malfunction affecting reliable operation.

The drive has detected that a required terminal board is not physically connected or properly recognized. This prevents the use of external control and feedback signals, making external control of the drive impossible.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and replacement of the affected hardware.

A Watchdog Timer Error indicates that the drive's internal processor has stopped responding or is executing an endless loop. This is a critical software or hardware fault preventing safe operation and indicates damaged hardware requiring power cycling and replacement to restore functionality.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

An external fault detected by the drive, signaling an issue with a device connected to the external fault input terminals, specifically S1. The fault code (EF0-EF8) may indicate different external fault conditions defined by the user or manufacturer.

The battery voltage within the digital operator (keypad) is critically low, impacting its ability to retain settings or operate correctly when disconnected from the drive. This indicates a potential data loss risk for parameters or logged data.

An error occurred during communication with an installed option card (e.g., network card, encoder card). This indicates a problem with the data exchange between the main drive unit and the option module, which can disrupt control or feedback functions.

The internal or external braking transistor has experienced an overload condition, likely due to excessive regenerative energy being dissipated, exceeding its thermal or current limits. This can lead to damage to the transistor, braking resistor, or even the drive itself.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.

An option card fault, indicating a general issue with one of the installed option cards. This requires corrective actions ranging from parameter adjustment to hardware checks or replacement to restore functionality of the option.