Following error

Following error

We have a customer with a MC664x that has an issue with FE in a master axis.
The machine is a printer and the axis is a rotary axis controlled by speed.
The FE_LIMIT is configured at maximum value (4.0e17).
He sends a video where we can see how FE is increasing to great values until the controller collapses and is not possible to stop, motor runs without control, and only the emergency stops are effective.

He uses a "FORWARD" function to move the axis.

It seems that some concepts are wrong in configuration mode but I don't know what.

Answer:
We could see DPOS moveing + and MPOS moving -. suggest that they have the encoder connected the wrong way around. MPOS must be counting the same way as DPOS.
    • Related Articles

    • Trio Motion Coordinator MC403 sudden axis status error

      Q: We always come up with “Axis Status: Error” and the active status flag is W (1) – Following error warning range and motor stops nearly instantly with E (8) – Following error exceeds limit.  How can we solve it? A: With SERVO=OFF, can you make the ...
    • Does the Euro408 have incremental/absolute encoder feedback ?

      The Euro404 and Euro408 support the following encoder types: Incremental ABZ with differential RS422 line driver outputs. (A, /A, B, /B, Z, /Z) SSI Absolute encoder up to 32 bits. EnDat Absolute encoder either EnDat 1 or EnDat 2.  The EnDat 2 support ...
    • Clear DX4 encoder error

      For "Clear all encoder errors" write "1" to address 0x3685:01 For the "Clear multiturn errors" write "1" to address 0x3685:02   The data type is UINT16 From a Motion-iX TrioBASIC program you can use either CO_WRITE or CO_WRITE_AXIS to access this ...
    • Connection to Single Ended Encoder (Incremental/Absolute)

      It is not recommended to connect an encoder single ended because it creates strange counting behavior due to signal noise and level drifts. TTL output uses differential wiring (A with /A and B with /B) to cancel noise. But... If single ended encoders ...
    • Flexaxis 4/8 Encoder Setup

      When connecting Encoders or using the analogue outputs on the P879 and P874 Felxaxis modules with the MC464 or MC664(X), the Flexaxis Module must have 24V connected to the IO connector on the Module. The 24V supplies internal DC/DC converters for the ...