GE IC693ALG390 – Series 90-30 2-Channel Analog Voltage Output Module

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Product Introduction:

The IC693ALG390, designed by GE Fanuc (Emerson Automation), is a high-performance analog output module belonging to the GE Series 90-30 PLC system. It converts 13-bit digital control signals from the PLC into precision analog voltage signals (-10 to +10 VDC) to drive field devices such as proportional valves, motor speed controllers, and instrument transmitters. Engineered for compact integration and reliable closed-loop control, it acts as a critical interface between digital automation systems and analog process equipment in diverse industrial environments.

Technical Specifications

Manufacturer: GE Fanuc (Emerson Automation)
Model: IC693ALG390
Series: Series 90-30 PLC System
Module Type: Analog Voltage Output Module
Output Channels: 2 independent single-ended voltage outputs
Voltage Output Range: -10 VDC to +10 VDC (standard industrial signal)
Resolution: 13-bit (2.5 mV per step, 1 LSB = 2.5 mV)
Update Rate: 5 ms for both channels (synchronized with PLC I/O scan)
Absolute Accuracy: ±5 mV at 25°C (77°F)
Offset Error: 1 mV maximum (0°C to 60°C)
Max Output Load: 5 mA per channel
External Power Supply: 18–30 VDC (nominal 24 VDC, ripple ≤10%)
Internal Power Consumption: 32 mA @ 5 VDC; 120 mA @ 24 VDC (backplane)
Isolation: 1500 VAC (1 min) field-to-logic; optical isolation for noise rejection
Dimensions (W×H×D): 52 mm × 85 mm × 133 mm
Weight: 0.30 kg (0.66 lbs)
Operating Temperature: 0°C to +60°C (32°F to 140°F)
Storage Temperature: -40°C to +70°C (-40°F to 158°F)
Relative Humidity: 5%–95% (non-condensing)
Certifications: CE, UL, CSA (industrial safety and EMC compliance)
Mounting: Compatible with 5-slot or 10-slot Series 90-30 baseplates (any I/O slot)

Key Features

13-Bit High Precision Output: Delivers accurate -10 to +10 VDC signals with 2.5 mV resolution for precise closed-loop process control.
Fast Synchronized Update: 5 ms update rate for both channels ensures real-time control of dynamic industrial processes.
Robust Optical Isolation: 1500 VAC isolation protects PLC logic from field-side electrical noise, voltage spikes, and ground loops.
Dual Power Support: Operates from PLC backplane power or external 18–30 VDC supply; external power enables “hold last state” during backplane power loss.
LED Diagnostic Indicator: Power LED illuminates when module power is active for immediate status verification.