SRVO-065: BLAL alarm (battery low)
The encoder backup battery is low but not yet dead - the warning shot before BZAL.
What it means
The encoder backup battery is low but not yet dead - the warning shot before BZAL. This is the cheap moment: replace the batteries now, with power on, and nothing else happens. Ignore it and the next event is BZAL, lost position data, and a mastering job.
Common causes
Ranked by what technicians most often find, most likely first.
- Encoder backup batteries approaching end of life (typical service life is on the order of a year or two depending on model and duty).
How to fix it
- Replace the batteries immediately and - critically - with controller power ON, so the encoders stay powered during the swap.
- Add encoder batteries to the PM calendar so this warning stops being the reminder system.
Quick facts
- Category
- Warning
- Affected series
- R-30iB; R-30iB Mate; R-30iB Plus; R-30iB Mate Plus
- Alarm family
- SRVO