04.S4.D4E-3011 KEB
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The KEB 04.S4.D4E-3011 is a servo controller from the S4 Combivert Servo Controllers series. It features a self-ventilated cooling system, operates with a supply voltage of 400 V, and offers an IP20 protection rating. The unit uses a resolver feedback system and can function at a rated speed of 3000 revolutions per minute.
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Product Description:
The 04.S4.D4E-3011 is a servo controller produced by KEB for the S4 Combivert Servo Controllers series. It regulates three-phase AC motors in automated machinery by modulating electrical power to control motor torque and speed. During operation, the controller processes position feedback and adjusts its output to correct deviations from the commanded motion profile. It also exchanges enable, status, and fault signals with the surrounding machine control system.
The controller operates from a three-phase supply of 400 V, which is rectified and pulse-width modulated to create a variable-frequency output for the connected motor. Operation requires an ambient temperature range of -10 to +45 °C, so the enclosure must provide enough airflow to keep the electronics within this range. Installation is permitted at elevations up to 2000 m above sea level. At higher elevations, reduced air density can lower cooling performance and require output derating. The controller has an IP20 protection rating, which guards against contact with internal electrical parts but requires installation in a closed panel for protection from dust and moisture. Heat is removed through a self-ventilated heat sink, reducing the need for separate external cooling equipment.
Unit size 04 and housing design D provide the terminal and bus-bar arrangement used for this controller configuration. Closed-loop motor control relies on a resolver interface that supplies rotor position feedback to the drive. This feedback allows the controller to regulate the motor at its rated speed of 3000 rpm while maintaining stable motion under changing loads. Climatic category 3K3 supports operation in clean industrial areas with moderate humidity and without condensation. An integrated interference suppression filter reduces conducted electrical emissions, although additional filtering may be needed when long motor cables are installed. The IG-IO board provides discrete inputs and outputs for drive enable, fault reporting, and process signals. Storage and transport temperatures range from -25 to +70 °C, helping protect the controller when it is not operating.
