04.S4.R4E-3001 KEB
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The KEB 04.S4.R4E-3001 is a servo controller from the S4 Combivert Servo Controllers series. It features a supply voltage of 400 V and supports a three-phase line at 50 or 60 Hz. This unit has a rated speed of 3000 rpm, an IP20 protection rating, and a feedback interface supporting resolver and incremental encoder simulation.
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Product Description:
The 04.S4.R4E-3001 is a servo controller manufactured by KEB for the S4 Combivert Servo Controllers series. Classified as a Combivert servo controller, it is intended for cabinets that already use S4 drives. The controller modulates the stator current of self-ventilated AC servomotors so that commanded torque and speed profiles are followed precisely in industrial automation cells. This control supports coordinated motion in machinery that requires accurate speed regulation and responsive torque delivery.
This unit uses a fixed wiring connection that draws three-phase mains power at 400 V and accepts a line frequency of 50/60 Hz. Within the drive, a resolver or incremental encoder simulation board provides the feedback interface. The resolver and incremental encoder simulation interface allows downstream controllers to verify position without an external converter. The housing corresponds to Unit Size 04, allowing installation in the same frame dimensions used by compatible equipment. The IP20 protection rating permits mounting inside a closed electrical enclosure where protection against accidental contact is required, but exposure to liquid spray is not expected. Three input phases are rectified, and the resulting DC power is pulse-width modulated to energize the motor windings. The connected motor uses self-ventilation to remove heat from its housing during operation.
The controller has a 3K3 climatic category for use in clean, temperature-controlled production areas. It maintains nominal performance at installation altitudes up to 2000 m without derating. The unit can withstand ambient relative humidity levels as high as 95% RH, provided that condensation is prevented. When paired with a machine axis designed for a rated shaft speed of 3000 rpm, the drive provides feedback appropriate for the motor’s operating speed. Its current control and encoder simulation functions support accurate regulation of the connected axis. The fixed connection and three-phase input arrangement support installation within compatible S4 drive cabinets.
