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GE / PACSYSTEMS RX3i
2-CHANNEL ANALOG VOLTAGE OUTPUT
IC694ALG390C
A two-channel analog voltage output module for PACSystems RX3i applications, providing bipolar −10 V to +10 V outputs with 2.5 mV resolution.
±10 V OUTPUT 2.5 mV / LSB 2 CHANNELS
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PRODUCT
PROFILE IC694ALG390C belongs to the PACSystems RX3i analog output family. It provides two voltage output channels for field devices requiring a bipolar analog control signal.
CORE FUNCTION
Digital-to-analog conversion from controller data to two −10 V to +10 V field outputs.
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Technical Architecture
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01 / CONTROL
Analog Setpoint Output
Suitable where the control strategy requires a bipolar voltage command.
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02 / SIGNAL
±10 V Interface
Provides a standardized bipolar voltage signal for compatible field devices.
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03 / RESPONSE
Approx. 5 ms
Both output channels have an approximately 5 ms update rate.
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04 / RX3i
System Integration
Designed for use in PACSystems RX3i I/O architecture.
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Q1. Can IC694ALG390C maintain the previous output state when the CPU enters Stop or Reset?
Yes. The ALG390 output behavior can be configured for either a default 0 V condition or Hold-Last-State behavior. The selection is made by the module jumper; with the jumper absent, the outputs hold their last state.
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Q2. Is IC694ALG390C suitable when the existing control loop requires a ±10 V command?
Yes. Its two analog output channels are designed for a −10 V to +10 V voltage range. The connected field device should nevertheless be checked for its required input impedance and signal characteristics before replacement.
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Q3. What should be checked before replacing IC694ALG390C in an RX3i installation?
Confirm the required analog signal range, two-channel configuration, external isolated +24 VDC supply arrangement, field wiring and output loading. The specified external supply range is 18–30 VDC, and the maximum output load is 5 mA.
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Q4. Does IC694ALG390C provide the same signal function as the IC694ALG391 current-output module?
No. IC694ALG390 is the two-channel voltage-output module, while IC694ALG391 is the two-channel current-output module. A replacement should therefore match the field signal type required by the existing control loop.
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Q5. What makes IC694ALG390C different from an eight-channel RX3i analog output option?
IC694ALG390C provides two voltage output channels with a −10 V to +10 V range and 2.5 mV resolution. An eight-channel analog output module is a different hardware configuration and should be selected when the application requires a higher number of analog output points or different voltage/current capabilities.
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| 80SD100XD.C0XX-21 | 1C31203G01 | X20AI2237 | HQ40D | 8I66T400037.0X-000 |
| 1C31113G05 | 2100P | ISENH3181 | 6SE7038-6GL84-1JA1 | DR1900 |
| VE4022 | VE4006P2 | OCR1100 | CDC40105 | 6SL3320-1TE33-1AA3 |
| SENSION1 | 6SE7041-8EK85-1HA0 | SE4006P2 | CP360 | 8I0IF109.400-2 |
| KJ1501X1-BC4 | 6SN1145-1BA01-0BA1 | VE5137 | SENSION5 | TL2360 |
| KJ3245X1-BK1 | 5MP050.0653-03 | 7EX290.50-1 | X20AT2222 | X20DO4529 |
| VE4013S2B1 | 8I0IF109.400-1 | SE4003S2B6 | 6SE7027-2TD61-Z | 7CP476.60-1 |
| 8I0IF248.300-1 | PHC10103 | HQ440D | 2612602 | 5ACPCI.ETH3-01 |
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RX3i ANALOG OUTPUT FAMILY
Related Modules
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IC694ALG390 — two-channel analog voltage output, IC694ALG391 — two-channel analog current output, and IC694ALG392 — eight-channel analog current/voltage output. These modules belong to the RX3i analog output family but provide different signal configurations, so the field signal requirement should be matched before replacement.
IC694ALG390 IC694ALG391 IC694ALG392
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