.

The input voltage dropped below the minimum operational limit.

The absolute encoder lost its battery backup voltage while the main control power was turned off.

Internal resistors utilize B1 and B2. External heavy-duty resistors require removing the factory jumper between B2 and B3 and wiring across B1 and B2. Control I/O Signals (CN1)

: Ensure an ambient environment below 45°C. Install external cooling fans if multiple drives are nested inside one enclosure. 🔌 Hardware Terminal Architecture and Wiring

During physical panel building and initial electrical commissioning. Troubleshooting & Maintenance Manual Purpose: Diagnostics and error resolution.

This usually happens during deceleration. Increase the deceleration time ( C1-02 ) or install a dynamic braking resistor to dissipate regenerative energy. Motor Overload (oL1)

For those working with the legacy drives often associated with Yaskawa's K-series terminology, the G7 Instruction Manual provides specialized details on vector control and 3-level inverter benefits.