IC694MDL940C GE RX3i 16PT Relay Output Modules
Manufacturer: GE Fanuc
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Part Number: IC694MDL940C
Condition：New with Original Package
Product Type: Digital Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Fanuc IC694MDL940C RX3i Relay Output Module
Configured for discrete load switching in PACSystems RX3i platforms, the GE Fanuc IC694MDL940C (IC694MDL940 Relay Output Module) provides direct physical/electrical execution. Operating on the RX3i Universal Backplane, the module provides 16 individually isolated Normally Open (Form A) contact outputs arranged across four isolated groups. The device interfaces control system logic directly with external field actuators, solenoids, and indicator circuits without intermediate isolation relays.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694MDL940C |
| Brand | GE Fanuc |
| Origin | Standard Industrial Production |
| Weight | 0.60 kg |
| Dimensions | 130 x 33 x 120 mm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 135 mA maximum backplane draw at 5 VDC (~3 W heat dissipation) |
| Base Model | IC694MDL940 |
| Number of Channels | 16 Form A (Normally Open) relay outputs |
| Isolation | Point-to-point and 1500 VDC field-to-logic isolation |
| Operating Voltage Range | 5 to 30 VDC / 5 to 250 VAC (50/60 Hz) |
| Contact Switching Current | 2.0 A pilot duty maximum per output (4.0 A max per group common) |
| Contact Response Time | 15 ms maximum turn-on / turn-off time |
Backplane Bus Communication Velocity & I/O Density Scaling
The IC694MDL940C communicates over the PACSystems RX3i parallel backplane bus, transferring output state images synchronously during every controller CPU scan cycle. Internal optocoupler barriers isolate logic-side backplane bus communication velocity from field-side inductive voltage spikes and electrical transients. High-density I/O density scaling allows up to 16 isolated power loops to occupy a single backplane slot, preserving backplane rack space and maintaining deterministic control timing across expanded RX3i subracks.
Frequently Asked Questions
Q: Does the IC694MDL940C require an external power supply to operate internal relay coils?
A: The module derives its coil driving power directly from the 5 VDC backplane supply bus, requiring no external 24 VDC user supply to energize the relay mechanisms.
Q: Can AC and DC load voltages be mixed on the same IC694MDL940C module?
A: Yes, because channels feature point-to-point isolation and grouping into four isolated sets, different AC and DC voltage levels within rated limits can be switched on separate groups.
Field Installation Guidelines
- Shut off power to the baseplate and field circuit lines before installing or removing the module from the RX3i rack slot.
- Wire inductive loads (such as relay coils or solenoids) with external suppression diodes for DC circuits or RC snubbers for AC circuits to prevent contact arcing.
- Route field wiring through the terminal block arm and secure the removable terminal block screw latches to maintain vibration resistance.
- Bond the backplane functional earth terminal to the cabinet grounding bar using a low-impedance copper strap to divert noise from logic circuits.