GE Fanuc IC693APU300 Series 90-30 High Speed Counter Module

Description

Key Technical Specifications

• Manufacturer: GE Fanuc Automation
• Part Number: IC693APU300
• Product Family: Series 90-30 PLC
• Module Type: High Speed Counter (HSC) Module
• Installation: Single Series 90-30 I/O slot
• Maximum Count Rate: Up to 80 kHz
• Low Frequency Measurement: Up to 20 Hz time-base counting
• Counter Modes: Up counting, down counting, bidirectional counting, differential counting
• Counter Configurations: Up to four independent counters depending on mode
• Input Channels: 12 local fast inputs
• Input Voltage: 5 VDC or 10 to 30 VDC
• Input Type: Positive logic
• Encoder Support: A Quad B encoder inputs
• Output Channels: 4 local fast outputs
• Output Rating: 10 to 30 VDC at 500 mA maximum; 4.75 to 6 VDC at 20 mA maximum
• Output Protection: Short-circuit/fuse protection
• Input Filter: High frequency 2.5 µs; low frequency 12.5 ms selectable
• Backplane Power Consumption: 250 mA at 5 VDC
• Connection Type: 20-screw terminal block

The GE Fanuc IC693APU300 is a Series 90-30 High Speed Counter module designed for applications where pulse rates exceed normal PLC scan processing capability. It directly processes high-frequency pulse signals for measurement and control tasks.

Product Introduction

The GE Fanuc IC693APU300 is a High Speed Counter module for the Series 90-30 PLC platform. It provides dedicated hardware counting functions for encoder feedback, flow measurement, velocity monitoring, and other applications requiring rapid pulse acquisition beyond standard PLC input modules.

The module supports multiple counting modes, including up/down counting, quadrature encoder operation, and differential counting. With local fast inputs and outputs, it can process high-speed signals without waiting for normal PLC scan execution.

Installation & Configuration Guide

Stage 1: Pre-Installation Preparation (Approx. 10 minutes)

⚠️ Safety First

• Notify operations before replacing the IC693APU300.
• Place motion equipment, rotating equipment, or metering systems into a safe state.
• Apply lockout/tagout procedures before removing PLC rack power.
• Verify external encoder and sensor power supplies are isolated.

Tools Required

• ESD wrist strap
• PH1 screwdriver
• Digital multimeter
• Wire labels
• Smartphone/camera for wiring documentation

Data Backup

Before removal:

1. Record the Series 90-30 rack and slot position.
2. Save PLC hardware configuration.
3. Document counter mode settings.
4. Photograph terminal wiring.
5. Record encoder wiring and input assignments.

Stage 2: Removing the Old Module (Approx. 10 minutes)

Steps:

1. Switch off PLC rack power.
2. Disconnect the 20-pin terminal block.
3. Label all encoder, sensor, and output wires.
4. Release the module locking tab.
5. Pull the IC693APU300 straight from the rack.

⚠️ Note:
Keep the original module until the replacement completes pulse counting verification.

Stage 3: Installing the New Module (Approx. 15 minutes)

Steps:

1. Wear an ESD wrist strap.
2. Verify the replacement model number: IC693APU300.
3. Install the module into the correct Series 90-30 slot.
4. Reconnect the terminal block.
5. Verify input polarity and encoder wiring.
6. Confirm output wiring matches the original configuration.

Configuration Clone Checklist

• Counter mode matches original
• Encoder A/B phase wiring verified
• Input voltage level confirmed
• Preset values restored
• Output assignments checked

Stage 4: Power-On & Testing (Approx. 20 minutes)

Pre-Power Check

• Verify sensor supply voltage.
• Confirm shielded cable installation.
• Check input wiring polarity.
• Verify output load requirements.

Power-On Steps

1. Restore PLC rack power.
2. Confirm HSC module status LED.
3. Verify MODULE OK indication.
4. Download or confirm counter configuration.
5. Apply test pulses or encoder movement.
6. Verify accumulated count values in PLC registers.
7. Test fast outputs if configured.

⚠️ Troubleshooting Note

If counting is incorrect:

• Verify encoder phase sequence.
• Check input voltage level.
• Confirm counter mode selection.
• Inspect shield grounding.
• Verify time-base configuration.

IC693APU300

IC693APU300

Frequently Asked Questions (FAQ)

Q1: Is the GE Fanuc obsolete?

Yes. The is a mature Series 90-30 High Speed Counter module. It remains in demand for plants maintaining legacy GE Fanuc PLC systems. Replacement units are typically sourced as new surplus, tested used, or refurbished inventory.

Q2: What is the maximum counting speed of ?

The module supports high-speed counting up to 80 kHz depending on operating mode and configuration.

Q3: Can connect to encoder applications?

Yes. The module supports A Quad B encoder configurations for bidirectional position and speed measurement applications.

Q4: Does require PLC scan time for counting?

No. The module performs dedicated hardware counting, allowing it to capture rapid pulse signals without relying on normal PLC scan execution.

Q5: Can be hot-swapped?

No. Remove PLC rack power before installing or removing this module. Live replacement can damage the module or create unexpected machine behavior.

Q6: What applications use the ?

Typical applications include:

• Rotary encoder position tracking
• Conveyor speed measurement
• Turbine flowmeter pulse counting
• Meter proving systems
• Motion control feedback
• High-speed production counting

Q7: What should be checked before ordering ?

Verify:

• Exact part number:
• PLC platform: GE Fanuc Series 90-30
• Required counter mode
• Encoder or pulse input type
• Input voltage level
• Output requirements
• Required condition: New Original, New Surplus, or Tested Refurbished

For high-speed counter replacement work, configuration details matter. A replacement module with the correct part number can still fail commissioning if encoder wiring, counter mode, or preset parameters are not restored correctly.