SI-F/G Communication Error

What does E-15 mean?

This fault may occur when using the SI-F or SI-G communication options if communication is lost after being established. It signifies a disruption in data exchange with the specific option card (SI-F or SI-G), which can halt control functions or data exchange, leading to operational stoppage and loss of control.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure the SI-F or SI-G option card is correctly seated in its slot within the inverter.

2. 4

   Inspect for external electrical noise or interference that could disrupt communication.

3. 5

   If the fault persists, consider replacing the communication option card or testing with a different external device.