IC693ALG391G GE 2-Channel Analog Current Output Modules
Manufacturer: GE Fanuc
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Part Number: IC693ALG391G
Condition：New with Original Package
Product Type: Analog Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Fanuc IC693ALG391G Series 90-30 Analog Output Module
Configured for precise process control in Series 90-30 PLC systems, the GE Fanuc IC693ALG391G (IC693ALG391 Analog Output Module) provides direct physical/electrical execution of current signal generation for field control loops. Installed in any standard I/O slot of a 5-slot or 10-slot backplane, the unit converts digital values from the CPU into two independent analog current outputs to drive control valves, actuators, and variable frequency drives.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC693ALG391G |
| Brand | GE Fanuc |
| Origin | United States |
| Weight | 0.40 kg |
| Dimensions | 152 x 152 x 51 mm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 30 mA @ +5 VDC backplane draw, 215 mA @ +24 VDC isolated supply |
| Base Model | IC693ALG391 |
| Number of Channels | 2 isolated analog current channels |
| Output Signal Ranges | 4-20 mA (default), 0-20 mA (jumper-selectable); 1-5 VDC, 0-5 VDC |
| Digital Resolution | 12-bit (1 LSB = 4 uA @ 4-20 mA; 1 LSB = 5 uA @ 0-20 mA) |
| Channel Update Rate | 5 ms across both channels |
| Absolute Accuracy | +/-8 uA (+/-0.25% full scale) @ 25 deg C for 4-20 mA |
| Load Resistance | 0 to 850 ohms |
| Isolation | 1500 VAC (1500 V RMS) field-to-logic optical isolation |
| Status Indicator | Module OK LED |
Backplane Bus Communication Velocity & I/O Density Scaling
The IC693ALG391G converts 12-bit digital registers sent across the rack interface into analog current signals while sustaining high backplane bus communication velocity during CPU scan updates. Optical isolation barriers rated at 1500 VAC isolate field loops from baseplate logic lines to prevent cross-talk and ground loop interference. High-density component layout provides dual-channel current loop output capabilities within a single rack slot, optimizing overall panel space and supporting scalable I/O density architectures.
Frequently Asked Questions
Q: What are the internal power rail current demands for the IC693ALG391G?
A: The module draws 30 mA from the +5 VDC backplane bus for internal logic and 215 mA from either the isolated +24 VDC backplane power rail or an external user-supplied 20 to 30 VDC power source.
Q: How is the output failure state configured if the CPU stops or communication is lost?
A: A DEF0/4 position jumper on the module board determines default field behavior. Depending on the jumper placement, channels either hold their last commanded state or reset to 0 mA / 4 mA upon CPU fault.
Q: What is the maximum load impedance supported on the 4-20 mA current output loops?
A: Each current output channel supports field loop load impedances up to a maximum limit of 850 ohms.
Field Installation Guidelines
- Always isolate baseplate supply power and external 24 VDC power sources prior to inserting or removing the module from the chassis.
- Terminate current loop field connections using shielded twisted-pair (STP) cabling to minimize electrical noise pick-up on sensitive control loops.
- Connect cable shield drain wires directly to functional ground at the terminal block end only to eliminate ground loop currents.
- Verify proper jumper configuration for current range selection (0-20 mA vs 4-20 mA) and CPU default response prior to powering the rack.