From a58e9eddbe0996ff68fda114b9af290ff641f554 Mon Sep 17 00:00:00 2001 From: Kevin O'Connor Date: Sat, 24 Apr 2021 12:30:27 -0400 Subject: [PATCH] docs: Note stealthchop can cause overcurrent error in TMC_Drivers.md Signed-off-by: Kevin O'Connor --- docs/TMC_Drivers.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/docs/TMC_Drivers.md b/docs/TMC_Drivers.md index 0b08c332..413f4ee1 100644 --- a/docs/TMC_Drivers.md +++ b/docs/TMC_Drivers.md @@ -425,6 +425,13 @@ indicates the driver has disabled itself because it detected very high current passing through the driver. This may indicate a loose or shorted wire to the stepper motor or within the stepper motor itself. +This error may also occur if using stealthchop mode and the TMC driver +is not able to accurately predict the mechanical load of the motor. +(If the driver makes a poor prediction then it may send too much +current through the motor and trigger its own over-current detection.) +To test this, disable stealthchop mode and check if the errors +continue to occur. + **TMC reports error: ... reset=1(Reset)** OR **CS_ACTUAL=0(Reset?)** OR **SE=0(Reset?)**: This indicates that the driver has reset itself mid-print. This may be due to voltage or wiring issues.