TC-FID161 Honeywell 24 Vdc Sink Digital Input Module
The Honeywell TC-FID161 is a 16-channel digital input module for 24 Vdc sinking signals. It packs 16 inputs in one group. Channels are non-isolated inside the group. A DIN-rail mount makes field installation fast. Each channel has a yellow status indicator. You can set input filter times from 256 us to 32 ms. This helps reject contact bounce and plant noise. The module fits Honeywell control systems that need dense discrete input count. Oiltech Controls ships tested units worldwide. Contact info@oiltechcontrols.com for stock checks.
Technical Specifications
| Brand | Honeywell |
| Model | TC-FID161 |
| Series | Honeywell Digital Input Modules |
| Module Type | 16 digital input, sinking |
| Number of Channels | 16 channels, 1 group of 16, non-isolated, sinking |
| Module Location | DIN-rail mounted |
| ON-State Voltage | 10 Vdc minimum; 24 Vdc nominal; 31.2 Vdc maximum |
| ON-State Current | 2 mA minimum; 8.8 mA nominal at 24 Vdc; 12.1 mA maximum |
| OFF-State Voltage | 5.0 Vdc maximum |
| OFF-State Current | 1.5 mA minimum |
| Input Impedance | 2.5 K |
| Input Filter OFF to ON | 256 us, 512 us, 1 ms, 2 ms, 4 ms, 8 ms, 16 ms, 32 ms (selectable) |
| Input Filter ON to OFF | 256 us default; selectable through output image table |
| Dielectric Withstand | 100% tested at 1900 Vdc for 1 s between user and system |
| Channel Isolation | No isolation between individual channels |
| Flexbus Current | 25 mA maximum |
| Power Dissipation | 6.1 W at 31.2 Vdc |
| Thermal Dissipation | 20.8 BTU/hr at 31.2 Vdc |
| Indicators | 16 yellow channel status indicators |
| External dc Power | 19.2 to 31.2 Vdc (5% ac ripple) |
| Dimensions | 69 mm x 94 mm x 80 mm (2.72 in x 3.7 in x 3.2 in) |
| Operational Temperature | 0 to 55 C (32 to 131 F) |
| Storage Temperature | -40 to 85 C (-40 to 185 F) |
| Relative Humidity | 5 to 95% non-condensing |
| Shock Operating | 30 g peak, 11(±1) ms pulse width |
| Shock Non-operating | 50 g peak, 11(±1) ms pulse width |
| Vibration | 5 g at 10-500 Hz per IEC 68-2-6 |
| Wire Size | 12 gauge (4 mm2) stranded maximum; 1.2 mm insulation max; 90 C minimum rating |
| Terminal Screw Torque | 4-7 inch-pounds |
Installation Guide
- Snap the module onto a DIN rail inside the panel.
- Feed external dc power in the 19.2 to 31.2 Vdc range.
- Use 12 gauge stranded wire maximum for field wiring.
- Tighten terminal screws to 4-7 inch-pounds.
- Keep signal wires away from motor and drive cables.
- Check all 16 yellow indicators after power up.
Setup and Maintenance
- Set input filter time in the output image table.
- Use 256 us for fast signals and 32 ms for noisy contacts.
- The 256 us default suits most general inputs.
- Watch channel LEDs for fast fault finding.
- Recheck screw torque after the first thermal cycle.
- Clean dust from vents to keep 6.1 W dissipation in check.
Compatibility Notes
- Fits Honeywell systems that accept the TC-FID161 module.
- Works with 24 Vdc sinking sensor outputs.
- Draws up to 25 mA from the Flexbus.
- Suits legacy and obsolete Honeywell control racks.
- Inputs share one group. Plan common wiring per group.
- Confirm backplane power budget before you add modules.
Why Buy From Oiltech Controls?
- Over 15 years of industrial automation spare parts work.
- Global shipment support for urgent breakdowns.
- Tested industrial surplus and refurbished units in stock.
- 12-month warranty on every module we ship.
- Technical verification before shipment on each order.
- Strong support for obsolete control systems.
Typical Applications
- Limit switch and push button input on machines.
- Valve position feedback in process plants.
- Relay contact monitoring in panels.
- Proximity sensor input on conveyors.
- Discrete alarm contact scanning.
- Legacy DCS and PLC input expansion.
Diagnostic Capability
- 16 yellow channel indicators show live input state.
- Selectable filter times cut false triggers from noise.
- Clear ON and OFF state thresholds aid field checks.
- 1900 Vdc dielectric test confirms user to system barrier.
- LED per channel speeds up panel troubleshooting.
- Stable 2.5 K input impedance gives predictable readings.
Certification Information
- Agency Certification Groups A, B, C, D certified.
- Class I Division 2 certified.
- Class I Zone 2 Group IIC certified.
- Dielectric withstand 100% tested at 1900 Vdc for 1 s.
FAQ
Q: How many inputs does the TC-FID161 have?
A: It has 16 sinking digital inputs in one non-isolated group.
Q: What is the nominal input voltage?
A: 24 Vdc nominal, with a 10 Vdc minimum and 31.2 Vdc maximum.
Q: Can I change the input filter time?
A: Yes. Choose from 256 us to 32 ms in the output image table.
Q: Are the channels isolated from each other?
A: No. Channels share one group with no channel to channel isolation.
Q: What is the input impedance?
A: 2.5 K per channel.
Q: How do you ship?
A: We ship by FedEx, UPS, and DHL.
Q: Is a warranty included?
A: Yes. Oiltech Controls gives a 12-month warranty.
Packing List and Warranty
- 1 x Honeywell TC-FID161 digital input module
- Technical verification report
- Protective packing
- 12-month warranty terms
- Shipping by FedEx, UPS, or DHL
Contact Information
Email: info@oiltechcontrols.com
Phone / WhatsApp: +86 158 8020 0923
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