General Electric IC695HSC308 8-Channel High-Speed Counter Module

Product Overview

The GE IC695HSC308 is an 8-Channel High-Speed Counter Module for the Emerson PACSystems RX3i programmable automation controller platform. It processes rapid pulse signals up to 1.5 MHz for industrial applications including velocity measurement, motion control, turbine flow metering, and material handling.

Key Specifications

• Model Number: IC695HSC308
• Series: PACSystems RX3i
• Product Type: High-Speed Counter Module
• Counter Channels: 8 independent counters
• High-Speed Inputs: 16 configurable inputs
• High-Speed Outputs: 14 configurable outputs
• Counter Types: A, B, C, D, E, Z, and user-defined
• Maximum Count Rate: 1.5 MHz (A-Quad B mode); 750 kHz (Type C/user-defined with 4 outputs)
• Count Range: -2,147,483,648 to +2,147,483,647
• Input Filtering: Configurable with 40 MHz internal oversampling
• Oscillator Accuracy: ±100 ppm over temperature range
• Oscillator Drift: ±5 ppm/year
• Pulse Capture Response Time: ≤ 2 µs
• Input Voltage: 5 VDC (4.7–5.5 V) or 12–24 VDC (10–26.4 V)
• Peak Input Voltage: 35 VDC
• Input Impedance: 10 kΩ
• Output Voltage Range: 4.7–40 VDC
• Output Current: 1.5 A max per channel; 10.5 A max per module
• Surge Current: 4.5 A <450 µs (self-protected)
• On-State Voltage Drop: 0.35 V @ 1.5 A
• Output Delay (Off→On): 125 µs @ 1.5 A
• Output Delay (On→Off): 85 µs @ 1.5 A
• Backplane Power: 94 mA @ 5V; 561 mA @ 3.3V
• Isolation: 250 VAC continuous; 2500 VAC/1 min (field to backplane)
• Operating Temperature: 0°C to 60°C
• Dimensions: 118 × 72 × 35 mm
• Weight: 0.4 kg (2720g shipping weight per supplier)
• Compliance: CE, UL/cUL 508, 1604, ATEX

Core Features

• 8 independent counter channels with configurable types (A-Z, user-defined)
• Ultra-high 1.5 MHz count rate for precision motion applications
• 16 high-speed inputs with 40 MHz oversampling filter
• 14 high-speed outputs with 1.5A per channel capacity
• Self-healing overcurrent/thermal protection on outputs
• Hot insertion/extraction capability for online maintenance
• Module fault reporting and I/O interrupt support

Applications

• Motion control and servo positioning
• Turbine flow metering and RPM measurement
• Material handling conveyor counting
• High-speed packaging line control
• Encoder feedback processing

FAQ

Q: What is the maximum count frequency?
A: 1.5 MHz in A-Quad B mode. For Type C with 4 outputs, the maximum is 750 kHz.

Q: Can the module be hot-swapped?
A: Yes, the IC695HSC308 supports hot insertion/extraction for online maintenance without system shutdown.

Installation Guide

1. Power down the RX3i rack (or use hot-swap in non-hazardous zones).
2. Insert the IC695HSC308 into any slot of the RX3i universal backplane.
3. Connect encoder or pulse generator signals to the high-speed inputs.
4. Configure counter types and filter settings via RX3i programming software.
5. Verify count accuracy using known pulse frequencies.

Selection Tips

• Verify encoder output type (5V vs. 12-24V) matches input configuration.
• For lower-speed counting, consider standard digital input modules.
• Ensure total output current (10.5A max) is not exceeded.
• Use shielded cables for high-frequency pulse signals to minimize noise.