FANUC Alarm SRVO-153 — SERVO CHGAL(CNV) alarm
Manufacturer wording — SERVO CHGAL(CNV) alarm (G:%d A:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC SRVO-153 (“SERVO CHGAL(CNV) alarm”): Charging of the main circuit could not finish within the specified time. First check: The DC link might a short-circuit. Likely part: Wiring board (Wiring board).
Updated 2026-09-17 · LogrobotLM reference
Description
Charging of the main circuit could not finish within the specified time.
Remedy
The DC link might a short-circuit. Check the connections. Also, electric resistance to restrict charge current might be defective. Replace the wiring board.
Part to check / replace
FANUC SRVO-153 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
Same hardware involved
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 →