+24V/+-15V/+5V fault power supply unit

What does F369 mean?

The DIAX04 SSE-03VRS power supply unit has detected an error with one or more of its internal control voltage supplies: +24V, +/-15V, or +5V. These voltages are critical for the drive's control electronics, I/O, and communication circuits. A fault in any of these indicates an internal power supply issue, compromising the drive's functionality.

• Internal fault within the DIAX04 SSE-03VRS power supply unit's DC-DC converter or voltage regulators.
• Short circuit or excessive current draw on one of the internal auxiliary voltage rails.
• Component degradation (e.g., capacitors) in the power supply unit affecting voltage stability.
• Overheating of internal voltage regulator components.
• Corrupted internal diagnostics reporting erroneous voltage readings.

Click steps to track your progress.

1. 1

   Perform a power cycle of the DIAX04 SSE-03VRS drive. Sometimes transient loads can cause temporary voltage dips.

2. 2

   Check for any external loads connected to the power supply unit's auxiliary outputs that might be drawing excessive current or causing a short.

3. 3

   If accessible, measure the voltage levels of +24V, +/-15V, and +5V at test points on the DIAX04 SSE-03VRS power supply unit's control board.

4. 4

   Inspect the internal components of the power supply unit for signs of overheating, bulging capacitors, or other visible damage.

5. 5

   If measurements confirm a voltage issue and no external cause is found, this indicates an internal hardware fault within the DIAX04 SSE-03VRS power supply unit, requiring factory service or replacement.