Configured for discrete load switching in PACSystem RX3i platforms, the GE Fanuc IC694MDL916 (IC694MDL916 Relay Output Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694MDL916 |
| Brand | GE Fanuc / Emerson |
| Origin | USA |
| Weight | 0.31 kg (0.69 lbs) |
| Dimensions | Standard RX3i single-slot module |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 300 mA at 5 VDC backplane, 150 mA at 24 VDC relay power |
| Number of Channels | 16, individually isolated |
| Contact Form | Form A (Normally Open) |
| Output Voltage Range | 5-250 VAC / 0-125 VDC |
| Nominal Voltage | 120-240 VAC; 5 / 24 / 125 VDC |
| Maximum Output Current | 4.0 A (5-250 VAC / 5-30 VDC resistive), 200 mA (125 VDC) |
| Minimum Load Current | 10 mA per point |
| Maximum Response Time | 10 ms |
| Field-to-Backplane Isolation | 250 VAC continuous; 1500 VAC for 1 minute |
Backplane Bus Communication Velocity & I/O Density Scaling
The IC694MDL916 interfaces via the PACSystem RX3i high-speed backplane bus, enabling high-density channel state updating without introducing latency to CPU scan cycles. Firmware flash compatibility within Proficy Machine Edition (version 5.5 SP2 or later) governs deterministic relay triggering. The physical separation across all 16 Form A channels prevents field noise and voltage transients from interfering with backplane signal processing or adjacent output circuits.
Frequently Asked Questions
Q: What are the backplane current draw limits when all 16 relay channels are energized simultaneously?
A: The module draws a maximum of 300 mA at 5 VDC from the backplane bus, plus 150 mA at 24 VDC from the backplane relay power supply when all outputs are in an ON state.
Q: Can the IC694MDL916 switch different load voltages across individual channels?
A: Yes, because each of the 16 Form A relay outputs is individually isolated point-to-point, separate channels can switch distinct AC or DC voltage potentials up to 250 VAC or 125 VDC.
Q: What terminal blocks are supported for wiring this module?
A: The module supports IC694TBB032 (Box-style), IC694TBB132 (Extended Box-style), IC694TBS032 (Spring-style), and IC694TBS132 (Extended Spring-style) terminal blocks.
Field Installation Guidelines
- Power down the RX3i baseplate before inserting or removing the IC694MDL916 module to avoid electrical arcing across backplane pins.
- Seat the module firmly into its designated RX3i I/O slot until the top and bottom rear levers latch into the baseplate.
- Route field wiring away from high-voltage motor supply cables, maintaining adequate separation to prevent inductive coupling on relay contact lines.
- Ensure the system frame ground is tied securely to the RX3i baseplate ground point to maintain 1500 VAC field-to-backplane isolation ratings.
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