F3XA16-1N Yokogawa AC Input Module – 16-Point, 100–120 V AC
The Yokogawa F3XA16-1N is a 16-point AC input module for Yokogawa F3 series I/O systems. It uses photocoupler isolation for each common group. This module suits legacy control panels that still run on 100–120 V AC field signals. It handles high-density input racks with 8 points per common. ON/OFF response times are selectable, so engineers can match scan cycles to machine timing. The module draws 65 mA from the 5 VDC backplane bus.
Core technical highlights: rated input 100–120 V AC 50/60 Hz, operating range 85–132 V AC, ON threshold 80 V AC min / 5 mA min, OFF threshold 40 V AC max / 1 mA max. All 16 points may be ON at the same time (100% simultaneous ON ratio).
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Technical Specifications
| Brand | Yokogawa |
| Model | F3XA16-1N |
| Series | F3 Series I/O |
| Module type | AC voltage input module |
| Input points | 16 |
| Isolation | Photocoupler isolation |
| Rated input voltage | 100–120 V AC, 50/60 Hz |
| Rated input current | 5.4–6.5 mA per point at 100–120 V AC, 60 Hz |
| Operating voltage range | 85–132 V AC, 50/60 Hz |
| ON state | 80 V AC min, 5 mA min |
| OFF state | 40 V AC max, 1 mA max |
| Response OFF to ON | Selectable: 15 ms max or 30 ms |
| Response ON to OFF | Selectable: 25 ms max or 40 ms |
| Simultaneous ON ratio | 100% |
| Common points | 8 points per common |
| Interrupt | Configurable per input point |
| Current consumption | 65 mA at 5 VDC |
| External connection | 18-point terminal block, M3.5 screws |
| Operating temperature | 0 to 55 °C |
| Storage temperature | -20 to 75 °C |
| Operating humidity | 10 to 90% RH, non-condensing |
| Storage humidity | 10 to 90% RH, non-condensing |
| Atmosphere | No corrosive gas, no flammable gas, no heavy dust |
| Weight | 180 g |
| Model code | F3XA16-1N = 100–120 V AC input, 16 points |
Installation Guide
- Mount the module in an F3 series rack or base unit
- Wire field signals to the 18-point M3.5 terminal block
- Keep AC input wiring away from low-level analog cables
- Confirm supply is within 85–132 V AC before power-up
- Check common grouping: 8 points share one common
Setup and Maintenance
Set response time per channel in the F3 configuration. Choose 15/25 ms for fast signals. Choose 30/40 ms for noisy lines. Interrupts can be enabled per point. Maintenance is simple: the module is a plug-in unit. Swap it without rewiring. Verify ON/OFF thresholds with a multimeter during annual checks. Clean terminals only when the panel is de-energized.
Compatibility
Fits Yokogawa F3 series I/O racks that accept the F3XA16-1N. Suits systems originally built for 100–120 V AC field input. Works as a drop-in replacement for obsolete AC input cards in legacy panels. Confirm rack slot and backplane 5 VDC load before fitting.
Diagnostics
- Per-point LED status shows input state
- Interrupt flags help trace fast events
- Threshold checks isolate faulty field devices
- Channel-by-channel response time testing
Typical Applications
- Legacy PLC and DCS input racks
- Panel pushbuttons, selector switches and limit switches
- Relay contact status monitoring
- AC pilot lamp and alarm contact sensing
- Retrofit of older process control lines
Packing List and Warranty
- 1 x Yokogawa F3XA16-1N module
- Protective packing for safe transit
- 12-month warranty
- Shipping by FedEx, UPS or DHL
FAQ
Q: How many inputs does the F3XA16-1N have?
A: 16 AC inputs, grouped as 8 points per common.
Q: What input voltage does it accept?
A: Rated 100–120 V AC. Operating range is 85–132 V AC, 50/60 Hz.
Q: Can all points be ON at once?
A: Yes. The simultaneous ON ratio is 100%.
Q: Is the response time adjustable?
A: Yes. OFF to ON is 15 or 30 ms. ON to OFF is 25 or 40 ms.
Q: Does it support interrupts?
A: Yes, interrupts are configurable for each input point.
Q: How is it isolated?
A: Photocoupler isolation, 8 points per common.
Q: What is the backplane current draw?
A: 65 mA at 5 VDC.
Need a quote or a cross-reference check? Email info@oiltechcontrols.com or chat on WhatsApp +86 158 8020 0923. We confirm technical details before every shipment.
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