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GE Fanuc IC693APU301 Single Axis Positioning Module

The IC693APU301 (also cataloged as the APU301 Single Axis Positioning Module) executes motion control within the GE Series 90-30 PLC backplane. It integrates axis positioning with PLC logic solving, providing one axis of servo loop control per module in a single-slot form factor.

Hardware Specifications

Motion Control Modes

The IC693APU301 operates in two selectable modes. Standard mode combines motion control with PLC logic solving, allowing the module to execute positioning programs while the CPU scans ladder logic. Follower mode enables electronic gearing, where the axis follows a master encoder or command source for continuous master/slave operations. Axis control is logic-based, with the servo loop closed every 1 millisecond. Up to 8 modules can reside in a modular CPU system, giving a maximum of 8 axes per rack configuration.

Field Installation Guidelines

Insert the module into any available slot in the Series 90-30 CPU, remote baseplate, or expansion baseplate. Verify the backplane connector is fully seated before applying power. Confirm the total number of APM modules does not exceed 8 in a modular CPU system. Route servo command and encoder feedback cables separately from high-voltage AC conductors to prevent induced noise on the 1 millisecond loop. Use shielded cable for encoder and analog command lines, with the shield terminated at the module end only. Configure axis parameters in VersaPro before enabling the servo. Verify the 1 millisecond servo loop update is stable by monitoring axis following error under load.

Frequently Asked Questions

Q: How many IC693APU301 modules can be installed in one system?
A: Up to 8 modules in a modular CPU system. Each module provides one axis of control.

Q: Can the module be installed in a remote baseplate?
A: Yes. It can be installed in any Series 90-30 CPU, remote baseplate, or expansion baseplate.

Q: What software is used for configuration?
A: VersaPro software is recommended for setup and configuration of motion programs.