GE IC800SSI228RD2 S2K Series High-Power Servo Drive with Dual SSI Encoder Interface

GE IC800SSI228RD2 is a standalone high-performance servo drive developed by GE Fanuc under the VersaMotion S2K motion control product line. 

It serves as the core execution unit for closed-loop servo positioning systems, receiving position, speed and torque motion commands from upper PLC or motion controllers, 

and driving matched GE MTR-series AC servo motors for precise motion regulation.

Equipped with dual SSI synchronous serial encoder channels, it supports high-resolution absolute position feedback to realize high-accuracy closed-loop positioning control. 

Built-in complete current, speed and position triple-loop control algorithm, it effectively suppresses position deviation, vibration and speed fluctuation during high-speed start-stop 

and frequent reciprocating operation. With abundant digital I/O terminals and multi-industrial communication interfaces, it can seamlessly interconnect with GE PACSystems, 

VersaMax PLC and third-party automation platforms. It is a critical maintenance replacement spare part for overhaul, fault troubleshooting and retrofitting of precision automation 

production lines, heavy machinery and process control equipment.

Technical Specifications

Part Number: IC800SSI228RD2

Manufacturer: GE Fanuc (General Electric), Origin: USA

Product Series: S2K VersaMotion Servo Drive

Rated Power: 228W

Main Circuit Input: 230V AC single-phase

Control Logic Power: 24VDC ±10%

Continuous Output Current: 9.5A

Peak Output Current: 19A

Encoder Interface: Dual-channel SSI absolute encoder input, up to 32-bit position resolution

Control Modes: Position mode, speed mode, torque mode, switchable via parameter setting

Digital I/O: Integrated 28-point programmable discrete input/output terminals

Communication Protocols: Modbus RTU, DeviceNet, CANopen, Profibus-DP

Sampling Frequency: High-speed loop response, sub-millisecond control cycle

Mounting Method: Panel wall mounting

Overall Dimension: 190mm × 70mm × 30mm

Net Weight: Approx. 1.5kg

Operating Temperature: -10℃ ~ +60℃

Humidity: 5%–95% Non-Condensing

Protection Class: IP20 enclosure

Built-in Protection: Overcurrent, overvoltage, undervoltage, overload, overtemperature, encoder fault protection

Certifications: CE, UL industrial compliance

Key Features

Triple closed-loop control architecture (current-speed-position), excellent dynamic response and positioning repeatability for high-precision motion applications.

Dual independent SSI encoder input channels, compatible with rotary and linear absolute encoders, ensuring reliable high-precision position feedback.

Three selectable control modes to adapt diverse working conditions of feeding, winding, positioning and constant-torque tension control.

Multiple mainstream fieldbus communication options, easy networking with GE PLC systems and third-party control hosts for centralized motion management.

Comprehensive multi-level fault diagnosis and protection mechanism, front-panel LED status indicators for rapid on-site fault location.

Compact integrated structure with built-in I/O terminals, reducing external wiring workload and simplifying cabinet layout design.

Anti-interference industrial circuit design, stable continuous operation under strong electromagnetic interference environment inside automation control cabinets.

Direct plug-and-play replacement for original failed drive, effectively shortening equipment downtime for maintenance and renovation projects.