R911201411
The R911201411 (RD51.2-4B-005-P-A2-FW) is a top-of-the-line frequency converter designed by Bosch Rexroth Indramat. As part of the VFC series, this standard model stands out due to its modular software/hardware design, contributing to its remarkable adaptability to specific drive needs. It is integrated with a freely switchable function block for addressing elementary PLC tasks. The automatic motor adjustment is managed through parameter identification in the RDwin software application. The converter operates at a voltage ranging from 380 – 480 Volts, with a tolerance of ±10 percent.
This model's unique features include an inbuilt braking resistor with a rating of 15-kilowatt output power, plate-type heat exchanger for temperature regulation, a starting inhibitor, and an additional 24 Volts standby power supply for output power range devices. R911201411 (RD51.2-4B-005-P-A2-FW) safeguards the external brake resistance through a calculated thermal model, shutting down when limit values are exceeded to avoid overload. The rated current at the mains supply voltage is 30 Amperes, with different peak currents based on time variations. The R911201411 (RD51.2-4B-005-P-A2-FW) is IP 20 protected, according to EN 60529, and operates ideally between 0 and 40 degrees Celsius. Its radio interference level is A1, per EN 55011/ EN 61800-3 standards. Thus, the R911201411 (RD51.2-4B-005-P-A2-FW) model proves suitable for use in environments with a contamination level of 2.
