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FANUC Alarm SRVO-295 — SERVO SVM COM alarm

Error
Hardware
servo amplifier
Controllers
R-J3iB / R-30iA / R-30iB
FANUC class
SERVO

Manufacturer wording — SERVO SVM COM alarm(G:%d A:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SRVO-295 (“SERVO SVM COM alarm”): Discharge power of PSM dischege is abnormal Motion is too agressive. First check: Change program speed to be lower Or check whether Fan for PSMR is working If the fan is out of order, exchange the fan

Updated 2026-10-22 · LogrobotLM reference

Description

Discharge power of PSM dischege is abnormal Motion is too agressive. Fan, which is

Remedy

Change program speed to be lower Or check whether Fan for PSMR is working If the fan is out of order, exchange the fan

Field diagnosis

Communication error between the power supply module and the amplifier module.

What to check

  • Replace the ribbon cable between the two modules, then the power supply module, then the amplifier module.
  • Note: A ribbon cable pinched during a module replacement is the number one cause.

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 →