FANUC Alarm SRVO-223 — DSP dry run
Manufacturer wording — DSP dry run (%d,%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC SRVO-223 (“DSP dry run”): A servo DSP initialization failure occurred and the software entered DSP dry run mode. First check: Perform an action according to the first number that is displayed in the alarm message.
Updated 2026-09-17 · LogrobotLM reference
Description
A servo DSP initialization failure occurred and the software entered DSP dry run mode. The first number indicates the cause of the failure. The second number is extra information.
Remedy
Perform an action according to the first number that is displayed in the alarm message. 1: This is a warning due to $scr.$startup_cnd=12. 2,3,4,7: Replace a servo card. 5,6: Invalid ATR setting. Specified hardware start axis might be wrong. 8,10: FSSB init error occurs simultaneously. Follow the remedy of FSSB init error. 9: There is no amplifier that is connected to the servo card. Check the hardware connection and optical fiber cable. 11: Invalid axisorder setting. Non-existing axis number is specified. Hardware start axis may be wrong or auxiliary axis board is necessary. 12: Servo amp init error occurs simultaneously. Follow the remedy of servo amp init error.
Related codes
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 →