Alarm: 991 AMPLIFIER OVER TEMPERATURE
Haas Alarm Description:
The amplifier/vector drive temperature sensor indicates over 90°C near the power transistors. This can be caused by an extended overload condition of the amplifier/vector drive, a stopped fan or high room temperature. Verify that the amplifier/vector drive fans are working.
References
- Haas Alarms PDF by Haas Automation, Inc.