Description
Product Description
The IC693APU301 is a specialized motion and high-speed counting module for the GE Fanuc Series 90-30 PLC platform. It integrates auxiliary processing capability to handle time-critical pulse inputs and positioning tasks independently from the main CPU.
This module is designed for applications requiring precise motion control or fast event counting, such as encoder feedback processing and single-axis positioning. With dedicated hardware for high-frequency signal handling, it significantly improves system responsiveness compared to standard digital input modules.
Technical Specifications
| Parameter |
Description |
| Model |
IC693APU301 |
| Manufacturer |
GE Fanuc / Emerson |
| Series |
90-30 PLC |
| Module Type |
High-Speed Counter / Axis Positioning Module |
| Functional Category |
Auxiliary Processing Unit (APU) |
| Controlled Axes |
1 axis |
| Input Type |
High-speed pulse inputs (encoder/proximity) |
| Max Input Frequency |
Up to 1 MHz (typical for counter mode) |
| Control Modes |
Positioning, follower mode |
| Counter Functions |
Up/Down counting, quadrature decoding, frequency/period measurement |
| Servo Update Rate |
1 ms loop update |
| Outputs |
Programmable compare/control outputs |
| Communication |
Backplane interface to PLC CPU |
| Connectors |
24-pin high-density, 25-pin D-sub |
| LED Indicators |
EN1, EN2, STST, OK, CFG |
| Slot Requirement |
Single slot |
| Compatible CPUs |
CPU311, CPU313, CPU323, CPU331 and higher |
| Max Modules per System |
Up to 3 (lower CPUs), up to 8 (higher CPUs) |
| Operating Temperature |
0°C to +60°C |
| Mounting |
Series 90-30 rack |
| Weight |
1.0 lb |
Operational Features
The IC693APU301 offloads high-speed counting and motion tasks from the PLC processor, ensuring accurate signal capture even at high pulse rates. It supports quadrature encoder inputs for position tracking and allows closed-loop control through rapid servo updates.
Its configurable operating modes enable flexible deployment, from simple counting applications to single-axis motion control. Hardware-based processing ensures deterministic performance, which is essential in precision automation systems.
Application Examples
Typical implementations include:
-
Encoder-based position tracking in packaging or assembly machines
-
Flow measurement using pulse-output flow meters
-
Conveyor synchronization and speed monitoring
-
Single-axis positioning systems with servo or stepper drives
-
High-speed event counting in production lines
FAQ
Q: Is this module only for counting applications?
A: No, it also supports single-axis positioning and motion-related control functions.
Q: Can it process quadrature encoder signals?
A: Yes, it supports quadrature decoding for accurate position and direction tracking.
Q: How many modules can be installed in one system?
A: Depending on the CPU model, up to 3 or 8 modules can be used.
Q: Does it replace a motion controller?
A: It provides basic single-axis control but is not intended to replace advanced multi-axis motion controllers.
