Product Overview
When a Series 90-30 rack loses an analog output card, production visibility drops with it. The IC693ALG392B is an 8-channel analog current/voltage output module from GE Fanuc / GE Intelligent Platforms, now owned by Emerson. It installs in a single slot and delivers the field signals that valves, drives, and positioners depend on.
This is revision B of the module, part of the widely deployed Series 90-30 platform. Because the unit is discontinued (End of Sale), sourcing is the real challenge – not the specification.
Key Parameters at a Glance
| Parameter | Value |
|---|---|
| Output channels | 8 single-ended |
| Voltage range | 0 to +10 V unipolar, or -10 to +10 V bipolar |
| Current range | 0 to 20 mA or 4 to 20 mA |
| Resolution | 12-bit |
| Update rate | 8 ms (all channels) |
| Accuracy | plus/minus 0.1% of full scale typical |
| Isolation | 250 VAC continuous; 1500 VAC for 1 minute |
| Backplane current | 110 mA |
| User supply current (24V) | 315 mA |
| Operating temperature | 0 to +60°C ambient |
| Slot width | Single slot |
Why These Numbers Matter
Eight single-ended outputs on one single-slot card keeps rack space free for other I/O. The 8 ms update across all channels suits control loops that need consistent, predictable refresh rather than per-channel lag. A 12-bit resolution with plus/minus 0.1% of full scale typical accuracy gives you the analog fidelity most process loops expect.
The 250 VAC continuous isolation rating, with 1500 VAC for 1 minute, separates field wiring from the backplane – useful in plants where ground potential differences and electrical noise are everyday realities.
Comparison: IC693ALG392B vs. Typical Analog Output Alternatives
- Channel density: 8 single-ended channels in one slot, versus 4-channel cards that consume the same rack space.
- Signal flexibility: Both voltage (0 to +10 V or -10 to +10 V) and current (0 to 20 mA or 4 to 20 mA) ranges on the same module – no separate variant needed.
- Isolation: 250 VAC continuous and 1500 VAC for 1 minute, a practical margin for oil, gas, and heavy industrial cabinets.
- Update rate: 8 ms for all channels, keeping multi-loop control synchronized.
For plants already running Series 90-30, matching the original module avoids re-engineering the rack, the wiring, and the control program.
Where It Fits in the Field
Oil and gas process skids. Analog outputs drive valve positioners and variable-speed drives. The 4 to 20 mA range carries signal integrity over long cable runs, and the isolation rating protects the backplane from field transients.
Water and wastewater control. Level and flow loops rely on stable analog commands. The 12-bit resolution and 8 ms update keep those loops responsive without overshoot.
Legacy line upgrades. When a Series 90-30 system is kept in service rather than replaced, a like-for-like output module is the lowest-risk path. The IC693ALG392B drops into the existing single slot with the same backplane draw of 110 mA.
Installation and Setup Notes
Confirm the rack slot is configured for analog output before inserting the module. Verify the 24V user supply can deliver the 315 mA the card draws, in addition to backplane consumption of 110 mA. Keep field wiring separated from high-voltage switching circuits to preserve the isolation margin. Allow ambient temperature to stay within 0 to +60°C.
Because the module is discontinued, please verify current lifecycle status and availability with Oil AutoTech before ordering.
Sourcing a Discontinued Module
End-of-sale status does not mean end of need. Many Series 90-30 installations still run critical processes, and replacing a failed output card is far cheaper than re-platforming a working control system. Oil AutoTech focuses on fast-dispatch spares for oil, gas, and industrial automation, with quick worldwide delivery and hands-on help confirming the right revision for your rack.
Contact Oil AutoTech today for pricing and availability.
