FANUC Alarm PNT1-838 — Bad Status from set_prax_spd

Manufacturer wording — %sBad Status from set_prax_spd
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT1-838 (“Bad Status from set_prax_spd”): An attempt was made to move the ServoBell or the SpeedDock and a bad status from set_prax_spd was detected. First check: Determine the cause of the bad status, then resolve the problem.

Updated 2026-09-17 · LogrobotLM reference

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →