04.S4.D4E-3002 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 04.S4.D4E-3002 is a servo controller in the S4 Combivert Servo Controllers series with a 400 V supply voltage class and an apparent power of 2.21 kVA. It offers two analog inputs and outputs, integrated EMI suppression, and incremental simulation encoder output with 512 counts per revolution. The controller provides IP20 protection, a relay rating of 30 VDC at 1 amp, and a motor nominal speed of 3000 rpm.
Internal Product Review
The 04.S4.D4E-3002 is a KEB S4 Combivert servo controller designed for precise motion control in the 400 V class with 2.21 kVA apparent power. Resolver feedback and ±0.5 rpm speed accuracy support very stable regulation in demanding servo applications. Integrated EMI suppression and IP20 protection make the controller a dependable choice for cabinet-based installations.
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Product Description:
The 04.S4.D4E-3002 is a servo controller produced by KEB within the S4 Combivert Servo Controllers series. As a closed-loop drive unit, it regulates synchronous or induction motors in automated machinery by converting fixed mains power into variable-frequency, variable-voltage output. The device monitors feedback signals and issues real-time torque and speed commands, making it suitable for positioning, conveying, and coordinated motion tasks on factory lines. Because it closes the loop internally, the controller can correct disturbances quickly and keep the commanded motion profile consistent across repeated cycles.
The unit includes two analog inputs and two analog outputs for proportional reference values, while the output stage provides two transistor outputs and one relay output. The relay is rated at 30 VDC and 1 A for control of auxiliary devices, and the controller has a system demand of 2.21 kVA, which is the apparent power required from the cabinet supply. Cycle execution is refreshed every 64 µs, permitting fine velocity-loop updates when the connected motor is driven toward its nominal speed of 3000 rpm. The enclosure has an IP20 protection rating, so installation inside a control cabinet is expected. Integrated EMI suppression reduces conducted noise, and an internal resolver interface provides the primary feedback path for vector control.
For drive synchronization tasks, the simulated encoder channel supplies 512 increments per revolution through incremental simulation that mirrors the shaft resolver position. During master-follower operation, the speed control loop maintains a deviation of ±0.5 rpm, and phase coupling stays within ±0.15° to limit position drift across axes. The power section is designed for the 400 V class mains category, matching common three-phase plant grids. An incremental encoder output is also available so downstream PLCs can capture position events without separate signal splitters. This behavior is useful where multiple axes must remain electronically aligned during acceleration, deceleration, and steady-state running.
