The IC694MDL660 is a high-density discrete input module designed for the PACSystem RX3i family, originally developed by GE Intelligent Platforms. This module provides thirty-two (32) input channels arranged in four (4) isolated groups of eight (8) channels each. It accepts both positive and negative logic configurations, making it versatile for various field devices such as proximity sensors, limit switches, and pushbuttons.
Furthermore, the GE Fanuc IC694MDL660 operates with a nominal voltage of 24 VDC and accommodates an input range from 0 to 30 VDC. Each channel draws only 7.0 mA at rated voltage, ensuring low power consumption across the system. The module also includes per-channel LED indicators that clearly show the logic state of each input, simplifying troubleshooting and maintenance.
The IC694MDL660 stands out for its flexible input filtering and robust isolation. Users can select from seven filter times: 0.5 ms, 1.0 ms, 2.0 ms, 5 ms, 10 ms, 50 ms, and 100 ms. These settings directly determine the on and off response times, helping the module ignore false signals caused by contact bounce or electrical noise.
Additionally, the module provides strong isolation protection. It offers 250 VAC continuous isolation between field and backplane, and 1500 VAC for one minute. Group-to-group isolation shares the same ratings, ensuring safe operation in mixed-voltage environments. The GE Fanuc IC694MDL660 also includes a built-in diagnostic tool via the terminal block, which reports status directly to the RX3i CPU for enhanced system monitoring.
Power consumption is rated at 300 mA total, drawing 195 mA from the 5 VDC bus and 224 mA from the 24 VDC bus. The maximum inrush current reaches 4.78 A for 10 ms, so proper power supply sizing is recommended. This module requires an RX3i CPU with firmware version 2.90 or higher and is not compatible with the older Series 90-30 CPUs.
The IC694MDL660 is built for industrial environments with wide temperature tolerance. Its operating range spans 0°C to 60°C, while storage conditions allow -40°C to 85°C. Relative humidity can range from 5% to 95% non-condensing, supporting use in humid factory settings.
Moreover, the module withstands vibration of 1G at 40 to 150 Hz and shock of 15G for 11 milliseconds. These rugged specs ensure reliable performance even near heavy machinery. The compact form factor fits standard RX3i racks, and the module remains in active lifecycle status, guaranteeing long-term availability.
Installing the GE Fanuc IC694MDL660 requires a compatible RX3i backplane and a high-density terminal block. Choose either the box-style IC694TBB032 or the spring-style IC694TBS032 front terminal block. First, seat the module firmly into the rack slot, ensuring proper alignment with the backplane connectors. Next, attach the terminal block and wire each input channel according to your positive or negative logic scheme.
For positive logic, connect the field device's signal wire to the input terminal and the common return to the group's common terminal. For negative logic, reverse the polarity accordingly. Each group shares a common connection, so plan your wiring to maintain group isolation. After wiring, configure the input filter time via the RX3i programming software to match your application's noise environment. Shorter filters respond faster but may be more susceptible to transients; longer filters reject noise but add delay.
Finally, power up the system and verify that the LED indicators match the expected input states. If an input remains on or off unexpectedly, check the wiring and filter settings before troubleshooting the field device.
Each order of the IC694MDL660 includes:
One GE Fanuc IC694MDL660 32-channel input module
One high-density terminal block (box-style or spring-style, depending on stock)
Product label with serial number and revision code
Anti-static packaging for safe transport
Note: Cables, mounting hardware, and software configuration tools are sold separately.
We ship worldwide using FedEx, UPS, and DHL with trackable service. All packages are carefully padded and ESD-protected. Orders are dispatched within 24–48 hours, and express options are available for urgent deliveries.
1. Can the IC694MDL660 work with a Series 90-30 CPU?
No. The GE Fanuc IC694MDL660 is exclusively designed for the RX3i PACSystem and requires an RX3i CPU with release 2.90 or later. It is not backward compatible with Series 90-30 systems.
2. How do I select the input filter time for my application?
Filter times are configurable via the RX3i programming software. Choose a shorter time (0.5–5 ms) for fast-switching signals like encoders, or a longer time (10–100 ms) for noisy environments or mechanical contacts that need debouncing.
3. What does the diagnostic tool on this module do?
The terminal block includes diagnostic circuitry that reports input status and fault conditions directly to the RX3i CPU. This enables real-time monitoring and alerts without additional wiring.
4. What is the difference between positive and negative logic?
Positive logic means the input turns on when a voltage (e.g., 24 VDC) is applied to the channel relative to common. Negative logic turns on when the input is pulled to common (0 V). The IC694MDL660 supports both configurations, giving you flexibility with different sensor types.
5. How many inputs can I wire to one group?
Each group has eight channels with a shared common terminal. You can wire up to eight inputs per group, and the module has four groups total, providing 32 independent inputs.
| Brand Name | |
| Model No. | IC694MDL660 |
| Product Type | Discrete Input Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
