RAM Fault (Control Card)

What does 39 mean?

This alarm signals a fault in the Random Access Memory (RAM) on the control card. RAM is essential for temporary data storage during drive operation, and an error can lead to system instability, incorrect calculations, or a complete operational failure. This indicates a hardware defect on the control card.

• Transient voltage spikes or brownouts on the auxiliary power supply affecting RAM integrity during read/write operations.
• Physical degradation or manufacturing defect in the RAM chip on the control card, leading to memory errors.
• Excessive operating temperature of the control card causing RAM instability or permanent damage.
• A software bug or corrupted operating system attempting to access invalid memory locations, triggering a hardware RAM fault.

Click steps to track your progress.

1. 1

   1. Perform a complete power cycle (OFF for 60 seconds) to clear any transient RAM errors.

2. 2

   2. Verify the ambient temperature around the drive and control card does not exceed the specified operating limits (e.g., 40°C).

3. 3

   3. Check the internal auxiliary power supply voltages (e.g., 5VDC or 3.3VDC) for ripple or instability with an oscilloscope.

4. 4

   4. Replace the control card if the RAM fault persists after power cycling and environmental checks.