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The command for clearing the fault history on the Servostar S300, S600, and S700 drives is CLREEPROM FLTHIST.  That is a space between the two words.  Type it into the terminal command line and press enter.  Sometimes it is easier to identify new faults with the history cleared out.  But keep in mind that other troubleshooting may be hindered due to lack of data after clearing the fault history.  Be careful to enter the entire command, as only entering CLREEPROM will set the drive to factory defaults.

How to read and monitor the AKD fault/no fault condition over Modbus TCP.

Valid for AKD-T (AKD BASIC)

LED-akd.jpg

The standard AKD Fault Messages are valid for AKD BASIC as well. In case of a built-in I/O option board with SD card device, the errors described in Fault Messages I-O Option might occur as well.

Valid for AKD

Operation of the SD card device built into the I/O option board may occur in some Errors. These errors are displayed in the two digit AKD LED display. The coding is E followed by four digits. The errors are shown twice in the display, They are not permanently displayed.

Valid for AKD-B, AKD-P, AKD-T, AKD-M

The two digits LED display on the front panel of the drive shows the number of the fault or warning that occurred.

LED-akd.jpg

The left side of the LED displays "F" for a fault or "n" for warning.

Valid for AKD

The AKD Drives have a 2 digit display on the front. Status, faults and warnings are shown there.

Examples:

Valid for AKD

Foldback time before faulting

Start:  foldback is fully recovered.

Valid for AKD-M (AKD PDMM)

The AKD PDMM Drives have a two digit plus a one digit display on the front. Status, faults and warnings are shown there.

Valid for S300, S700

Depending on the current trouble, faults are managed differently (different error levels):

Valid for S400, S600

Depending on the current trouble, faults are managed differently (different error levels):

LEVEL 0 : Warning without STOP

Trouble is displayed with a warning number xx in the LED display (nxx). Additionally a warning bit is set in the status register, that can be reported with a digital output. The output stage remains enabled, the amplifier remains ready to operate, but the operation may be reduced (current limitation). Reduction of operation will disappear as soon as trouble disappears.

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