Product Description:

The FECP01.1-55K0-3P660-Z-RN-NNNN-01V01 frequency converter is manufactured by Bosch Rexroth Indramat as part of the FEC Frequency Converters series. The device modulates AC voltage and frequency to control centrifugal pumps and axial fans in automated facilities, allowing flow and pressure to follow real-time demand. By placing an adjustable drive between the supply and the motor, it supports tighter process control and reduced energy consumption in HVAC, water treatment, and similar applications. This operating method is useful where motor speed must change with system demand instead of running continuously at full output.

The converter accepts a 3-phase mains input, ensuring balanced power delivery for large industrial motors. Its inverter section is rated at 55 kW, so it can start and run medium-sized pump or fan loads without derating. Short-duration stress is handled by an overload margin of 120% for 60 seconds, while extended moderate loading is permitted up to 105% for 60 minutes; these limits protect semiconductors from thermal fatigue while allowing temporary process upsets to clear without tripping. A braking circuit is provided as an external braking chopper, so a separate resistor bank can be matched to the installation airflow and duty. These overload allowances help the converter remain stable during brief demand spikes and controlled deceleration events.

For space planning, the cabinet width is 364 mm, and the drive corresponds to mechanical size 5, permitting alignment with standard enclosure grids. The control board follows Design 1, and the unit belongs to the 1st generation, placing it in an early FEC platform. The front panel uses high-durability membrane keys only and does not include a rotary adjuster, so the speed reference must come from an external control signal because the device is supplied without a potentiometer. This layout fits installations where pump or fan speed is managed by a PLC or building control system rather than from a local manual setting.