05.S4.D30-1270 KEB
Wake Industrial LLC is not an authorized distributor of this product.
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The KEB 05.S4.D30-1270 is part of the S4 Combivert Servo Controllers series and features a resolver feedback interface with 12-bit resolution. It offers a current control sample time of 64 microseconds, speed control sample rate of 128 microseconds, and a speed control accuracy of plus or minus 0.5 rpm. The unit has an IP20 protection rating and supports a maximum line fuse of 16 Amps with a 1.5 mm² line cross section.
Internal Product Review
The 05.S4.D30-1270 is a KEB S4 Combivert servo controller with IP20 protection and a resolver feedback interface. Fast 64 µs current control sampling and ±0.5 rpm speed control accuracy make this unit a strong choice for precise servo applications.
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Product Description:
The 05.S4.D30-1270 is a servo controller built by KEB and delivered within the S4 Combivert Servo Controllers series. It regulates torque, speed, and position for synchronous or induction servo motors used in indexing tables, packaging axes, and material-handling gantries. By processing field-oriented control algorithms, it closes the motor feedback loop, issues pulse-width-modulated power, and supports integration into larger PLC-based motion systems. This operating method helps the controller respond quickly to changing loads while maintaining stable motor behavior during acceleration, deceleration, and low-speed positioning.
KEB samples the current loop every 64 µs, allowing tight regulation of phase currents and rapid compensation for load transients. The speed loop updates at 128 µs, so commanded velocity changes reach the shaft quickly while remaining numerically stable. Closed-loop deviation is limited to ±0.5 rpm, which keeps conveyor or spindle speed within a narrow tolerance band. Supply terminals accept conductors up to 1.5 mm², matching common industrial control wiring and supporting orderly cabinet connections. These loop rates support smooth motion in medium-inertia axes, and the controller can react to command changes without introducing unnecessary oscillation. Stable current control also helps the motor develop predictable torque during repeated cycle operation.
A shaft-mounted feedback device is read through a Resolver interface and digitized to 12-bit resolution, giving fine position information to the control loop throughout each shaft rotation. Overcurrent protection on the mains side is coordinated with a 16 A line fuse, preventing damage if the drive or motor shorts. The housing carries an IP20 rating, so it must be installed inside a closed panel while remaining suitable for standard industrial cabinet layouts. Resolver feedback is well suited to electrically noisy environments, and the enclosed mounting arrangement helps protect the controller from incidental contact during normal machine operation. This combination supports reliable axis control in multi-axis equipment that depends on fast current regulation and accurate speed response.
