bAT
Keypad Battery Low Voltage
Yaskawa · GA500 Maintenance and Troubleshooting
What does bAT mean?
The internal battery providing backup power to the keypad has dropped to a low voltage level. This condition compromises the keypad's ability to retain parameter settings or maintain its display, potentially leading to loss of drive configuration or operational instability from the keypad if not addressed promptly.
Common Causes
- Voltage of the keypad's internal battery is too low (P10-01).
- Battery requires replacement to maintain settings.
- Keypad lost power and is relying on backup cell.
- Low voltage detected on the keypad's power circuit.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Replace the keypad battery with a new, compatible battery to restore proper voltage.
Verified technical data. Last updated: March 2026
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Source: Yaskawa GA500 Maintenance and Troubleshooting