04.S4.R4E-3002 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 04.S4.R4E-3002 is a servo controller from the S4 Combivert Servo Controllers series. It features a nominal power of 1.3 kW, a voltage class of 400 V, and a rated speed of 3000 rpm. The device supports a basic torque of 4.1 Nm and uses incremental encoder simulation with resolver feedback.
Internal Product Review
The 04.S4.R4E-3002 is a KEB S4 Combivert servo controller well suited for 400 V systems and 1.3 kW motion applications. Resolver feedback with incremental encoder simulation supports accurate command tracking and dependable integration with existing control architecture. Three-phase 50/60 Hz input makes this controller an excellent fit for standard industrial power networks.
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Product Description:
The 04.S4.R4E-3002 is a drive unit produced by KEB for the S4 Combivert Servo Controllers series. Inside machining centers and material-handling stations, it translates control commands into finely regulated motor currents and coordinates position through the resolver feedback channel available on the device. By controlling acceleration ramps and maintaining torque at standstill, the unit keeps mechanical axes synchronized with the programmed motion profile required in industrial automation. This operating mode suits servo applications that demand repeatable positioning and stable low-speed control.
Its nominal output is 1.3 kW, delivered across a three-phase supply that operates at 50/60 Hz. A rated input demand of 3.6 A is specified, while the output stage can continuously supply 3.2 A to the motor. Under those conditions, the drive develops a basic shaft torque of 4.1 Nm and sustains a rated mechanical speed of 3000 rpm. The internal logic provides incremental encoder simulation so downstream systems can receive quadrature pulses that mirror the actual resolver position. Interference suppression components reduce conducted emissions into the mains network, and the three-phase line connection helps keep power delivery balanced during load transients.
For short periods, the motor can hold 4.8 Nm at standstill, drawing a stall current of 3.7 A that remains within the semiconductor rating. Rotor inertia is 7.4 kg·cm², which helps when matching the drive to the reflected load and limiting overshoot during direction changes. Upstream circuit protection is provided by a maximum mains fuse of 10 A, selected so clearing time precedes device damage. The controller belongs to the 400 V class, so it connects directly to common industrial power systems. The motor weight is 5.3 kg, which affects mounting support but does not change electrical sizing.
