Product Description:

KEB manufactures the 13.F5.G1D-390A drive within the F5 Combivert Axis Drives series. This unit is an AC inverter that modulates the output voltage and frequency supplied to a connected motor, allowing precise speed and torque regulation in automated machinery such as conveyors, pumps, and positioning axes. Its design supports controlled motor operation in applications that require stable response during changing load conditions.

The inverter accepts a three-phase input of 400 V AC or DC and can energize motors up to 7.5 HP. A built-in braking transistor, model GTR7, dissipates regenerated energy during rapid deceleration, while a separate braking resistor can be wired to the same terminals. Its power stage can switch up to 16 kHz, yet it trips at an overcurrent threshold of 216% of the continuous rating to protect the semiconductor bridge. During transient demand, the current can reach a peak of 21.6 A, corresponding to a 180% overload ceiling. Earth-fault monitoring and short-circuit monitoring remain active at all times, and there is no encoder interface, so speed feedback must be sensorless or supplied through the fieldbus.

During steady operation, the inverter delivers a rated output of 12 A with a default carrier frequency of 4 kHz, which balances switching losses and motor acoustic noise. The housing has an IP20 rating, providing finger-safe protection inside enclosed panels, and its electromagnetic emissions conform to C1 limits for residential and light industrial zones. Standard cooling relies on ambient airflow around the heat sink, and the electronics are arranged in size code 13 for uniform cabinet layout. The control board supervises the peak current ratio, monitors braking transistor status, and coordinates the earth-fault and short-circuit sensors to shut the output stage within microseconds of a detected fault.