SRVO-130: OHAL1 (PS) alarm (power supply overheat)
The heat sink on the servo power supply (the αiPS) is abnormally hot.
What it means
The heat sink on the servo power supply (the αiPS) is abnormally hot. Posts against the amplifier (axes 1-2 or 1-2-3). Cooling first, workload second, hardware last.
Common causes
Ranked by what technicians most often find, most likely first.
- Power supply cooling fan stopped or degraded.
- Duty cycle overworking the power supply.
- Failed power supply (αiPS).
How to fix it
- Check the αiPS cooling fan is spinning; replace if not.
- Reduce the duty (lower override, slow the cycle) and see if it stays cool.
- Replace the power supply if it overheats with good cooling and reasonable duty. Power-cycle to clear.
Quick facts
- Category
- Servo
- Affected series
- R-30iB; R-30iB Mate; R-30iB Plus; R-30iB Mate Plus
- Alarm family
- SRVO
Related codes
- SRVO-131LVAL / LVAL (PS) alarm (PS control voltage low)
- SRVO-133FSAL (PS) alarm (power supply fan stopped)
- SRVO-126Quick stop error
- SRVO-134DCLVAL / DCLVAL (PS) alarm (DC link voltage low)
- SRVO-135FSAL alarm (aux amplifier fan stopped)
- SRVO-124Check HardStop if Hit
- SRVO-122Bad last ang (internal)
- SRVO-121Excessive acc/dec time