This analog output module converts digital commands into continuous voltage or current signals. The GE IC693ALG391 provides four output channels with 12-bit resolution for accurate control. Each channel delivers either 0 to 10 VDC voltage or 4 to 20 mA current outputs. The module drives field devices like actuators, valves, and chart recorders directly. Its flexible configuration eliminates the need for external signal conditioners in most applications.
Mechanical Dimensions and Construction Quality
The module measures 110 mm in height, 85 mm in depth, and 45 mm in width. This compact footprint integrates efficiently into the Series 90-30 rack system. Weighing only 0.34 kg, the IC693ALG391 simplifies installation and replacement procedures. A rugged thermoplastic housing provides reliable protection against dust and mechanical damage. This housing meets IP20 requirements for safe indoor panel mounting.
Technical Specifications at a Glance
| Specification | Detail |
|---|---|
| Output Channels | 4 (individually configurable) |
| Resolution | 12-bit (4096 steps) |
| Voltage Output Range | 0 to +10 VDC |
| Current Output Range | 4 to 20 mA |
| Voltage Load | ≥ 2 kΩ |
| Current Load | 0 to 750 Ω |
| Accuracy | ±0.25% of full scale (25 °C) |
| Settling Time | 5 ms (to 0.1% final value) |
| Dimensions (H × W × D) | 110 mm × 45 mm × 85 mm |
| Weight | 0.34 kg |
| Terminal Block | 16‑position screw clamp |
| Wire Gauge Range | 0.2 – 2.5 mm² |
| Backplane Current | 140 mA at 5 VDC |
| External Supply | 24 VDC ±10% |
| Power Dissipation | 4.5 W |
| Isolation Voltage | 1500 VAC (channel‑to‑bus) |
| Energy Buffer | 100 µF capacitor (5 ms hold‑up) |
| Temperature Range | 0 °C to +60 °C |
| Humidity Range | 5% – 95% RH (non‑condensing) |
| Standards | UL 508, CSA, CE |
| Protection Rating | IP20 |
| Diagnostics | LED indicators (PWR, CH1-4, FAULT) |
Interface and Connectivity Features
A 16‑position screw clamp terminal block provides reliable wiring for all four channels. This terminal accepts solid or stranded wires from 0.2 to 2.5 mm² securely. Each channel includes separate shield terminals for cable screening and noise reduction. Front‑panel LEDs display channel activity, supply presence, and fault conditions clearly. The module integrates directly into the Series 90‑30 backplane for high‑speed data exchange.
Power Architecture and Energy Storage
The GE IC693ALG391 draws 140 mA from the 5 VDC backplane for logic operations. It also requires a 24 VDC ±10% external supply for the analog output circuits. An onboard 100 µF capacitor provides short‑term energy storage for signal stability. This capacitor maintains output signals during power dips lasting up to 5 milliseconds. Total power dissipation measures 4.5 W under full channel load.
Internal Component Architecture
Four independent DACs convert digital values into precise analog signals for each channel. Each channel includes an output amplifier capable of sourcing 4 to 20 mA or 0 to 10 VDC. The module uses a precision voltage reference with 50 ppm/°C temperature stability. The PCB contains 72 surface‑mount resistors, 56 ceramic capacitors, and 4 DAC ICs. A software‑selectable mode configures each channel for voltage or current operation individually.
Environmental Performance and Certifications
This analog output module operates reliably from 0 °C to +60 °C in factory environments. It also performs consistently in humidity conditions from 5% to 95% without condensation. The IC693ALG391 complies with UL 508, CSA, and CE certification standards. These approvals guarantee safe integration into global industrial control systems.
Details
| Weight | 0.34 kg |
|---|---|
| Dimensions | 110 × 45 × 85 mm |
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