Description
Product Description
The IC694ALG391 is a dual-channel analog output module for the PACSystems RX3i platform, designed to convert PLC digital values into precise current or voltage signals. Each channel supports 0–20 mA, 4–20 mA, 0–5 V, and 1–5 V output ranges, providing flexible control options for actuators, valves, drives, and other analog devices.
Equipped with 12‑bit DACs, the module offers fast 5 ms update rates and ±8 µA (current) or ±50 mV (voltage) accuracy, ensuring responsive and high-precision control. Optical isolation per channel protects the system from electrical noise and ground loops. Users can configure the module to Hold Last State or default to 0/4 mA when the CPU stops, providing safe operation under fault or shutdown conditions.
The IC694ALG391 is certified for hazardous and marine environments, making it suitable for demanding industrial applications. It mounts easily on RX3i racks or panels/DIN rails, supporting rapid installation and maintenance.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
GE Fanuc / Emerson |
| Model |
IC694ALG391 |
| Product Line |
PACSystems RX3i |
| Product Type |
Analog Output Module |
| Channels |
2 analog outputs |
| Current Output |
0–20 mA, 4–20 mA (jumper-selectable) |
| Voltage Output |
0–5 V, 1–5 V (jumper/resistor-selectable) |
| Resolution |
12-bit |
| Update Rate |
~5 ms per channel |
| Absolute Accuracy |
±8 µA (4–20 mA), ±10 µA (0–20 mA), ±50 mV (voltage) |
| Compliance Voltage |
25 VDC max |
| Load Resistance |
0–850 Ω (current), ≥2 kΩ (voltage) |
| Load Capacitance |
2000 pF max |
| Load Inductance |
1 H max |
| Power Requirements |
+5 VDC backplane: 30 mA; +24 VDC isolated: 215 mA |
| Isolation |
250 VAC continuous, optical per channel |
| Default/Hold State |
Jumper-selectable |
| Operating Temperature |
–10 °C to 60 °C |
| Storage Temperature |
–40 °C to 85 °C |
| Certifications |
UL, UL HazLoc, CE, ATEX Zone 2, ABS, BV, DNV, GL, KRS, LR |
| Mounting |
RX3i rack, panel, or DIN-rail |
| Dimensions |
101.6 × 152.4 × 127 mm |
| Weight |
0.64 lbs |
Key Features & Advantages
-
Dual-channel 12-bit analog output for precise control
-
Supports both current (0–20 mA, 4–20 mA) and voltage (0–5 V, 1–5 V) outputs
-
Fast 5 ms update rate for responsive system performance
-
Optical isolation per channel enhances noise immunity and safety
-
Configurable Hold Last State or default output on CPU STOP
-
Suitable for valves, drives, actuators, and process automation
-
Certified for hazardous and marine applications
Applications
-
Actuator and valve control in process industries
-
Drive or motor analog signal output
-
Remote control of analog field devices
-
Hazardous or marine environments requiring high-reliability I/O
FAQ
Q: Can the IC694ALG391 output both voltage and current simultaneously?
A: No, each channel must be configured for either current or voltage output using jumpers or resistor settings.
Q: What happens to outputs if the CPU stops?
A: The module can be configured to Hold Last State or default to 0/4 mA for safe shutdown.
Q: Is this module suitable for marine or hazardous locations?
A: Yes, it carries UL HazLoc, ATEX, and multiple marine certifications.
