Fronius Shock Sensor Sensetivity

    • New

    I have a Yaskawa MA1400/DX100 that uses a Fronius TPS3200 CMT power source with robacta drive and a through-arm "Crashbox CMT-PAP (44,0350,2854)".

    I am getting frequent shock sensor faults on 1 specific robot (code 4110 SV#1). These alarms are not due to actual collisions with the robot, most are with the robot doing a general air move and are not the same spot every time. A lot of them are even when the robot is returning to its home position (within inches of home).

    I am planning on swapping out the crashbox this weekend, though was wondering if there is a way to adjust the sensitivity on these. Or if there could be something else causing repeated shock sensor alarms. I am not able to find a very useful manual online either.

    Any help would be appreciated.

    • New

    hey mate,

    it's just magnets and a switch.. there is not much to adjust.

    i had big trouble with my TPS/i having shock sensor issues.

    on the TPS/i & DX200 the signal is as follows.

    crash box switch>TPS/I>Ethernet back to robot controller>REGISTER>Ladder logic>physical relay>back to robot controller.

    ... the relay had partially failed and i would get intermittent crash box activation.


    replaced one of these and now it's all good.

    • New

    Awesome, thanks for the reply. I will look into this. I had also noticed that the connection to the wire feeder was a little banged up so going to replace the wire feeder as well.

    Do you think its worth swapping out actual shock sensor or as you said its a pretty basic part?

    • New

    Hello everyone, shock sensor errors on Fronius are usually related to the hose package. One of the shock sensor connection cables in the package may be damaged, so it may cause a lack of contact at some angles. If you measure the short circuit inside the package, you can get an accurate result.

    • New
    Quote from UgurhanSahin

    Hello everyone, shock sensor errors on Fronius are usually related to the hose package. One of the shock sensor connection cables in the package may be damaged, so it may cause a lack of contact at some angles. If you measure the short circuit inside the package, you can get an accurate result.

    We ended up running a new communication cable to the robacta and changing out the crashbox itself. It has been good since then. I have a feeling it was probably the communication cable, though it was causing some significant downtime so we just swapped out both and have been good since.

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