Description
Product Introduction
The Honeywell CC-TDI220 is a 16-channel high-voltage digital input module engineered specifically for Honeywell Experion PKS Series C I/O assemblies. It serves as the primary interface for monitoring AC-powered limit switches, motor status auxiliary contacts, and high-voltage proximity sensors, translating 120 VAC or 125 VDC field states into reliable internal logic for the C300 controller.
Built with heavy-duty optical isolation and robust transient suppression, the CC-TDI220 shields sensitive control logic from high-voltage line spikes and electrical noise common in heavy industrial switchgear environments. In plant operations, replacing an erratic or failed AC input card with a verified CC-TDI220 eliminates phantom bit flickering and restores dependable state detection without requiring database reconfiguration.
Key Technical Specifications
| Parameter | Specification / Value |
| Model Number | CC-TDI220 |
| Honeywell Part Number | 51405036-175 |
| Input Channels | 16 AC/DC Discrete Channels |
| Nominal Input Voltage | 120 VAC / 125 VDC |
| OFF State Voltage / Current | < 30 VAC, < 0.5 mA |
| ON State Voltage / Current | 90 to 132 VAC, > 2.0 mA |
| Galvanic Isolation | 1500 V RMS channel-to-logic bus isolation |
| Input Response Delay | Configurable software filter times (default ~10 ms) |
| Power Dissipation | 4.0 Watts (Typical operating draw) |
| Conformal Coating | Standard G1 / Optional G3 Harsh Environment protection |
| Mounting Format | Direct clip-on mount to Series C Input/Output Termination Assembly (IOTA) |
Application Scenarios & The “Trench” Experience
It is 2:00 AM at a power generation facility, and the primary turbine auxiliary panel throws multiple unverified fault codes as motor control center (MCC) breaker feedbacks start dropping out randomly on the supervisory screen. Field multimeters prove the 120 VAC control circuits are fully energized, but the aging input card’s optical isolation channels have degraded under years of high-voltage thermal cycling. Sliding in a pre-tested surplus CC-TDI220 module restores clean signal registration across all 16 AC channels instantly, bringing the auxiliary interlock chain back online before the morning dispatch.
- Power Generation: Monitoring 120 VAC breaker auxiliary contacts, switchgear status, and turbine auxiliary interlocks.
- Oil & Gas Refining: High-voltage motor control center (MCC) feedback tracking and utility distribution monitoring.
- Water & Wastewater Treatment: High-voltage valve actuator limit switch feedback and municipal power feed surveillance.
- Heavy Manufacturing: Heavy-duty stamping and assembly line safety circuit monitoring operating on 120 VAC control power.
CC-TDI220
CC-TDI220
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual Honeywell Experion test rigs before they leave our bench.
- Inbound Visual Inspection: Every board is examined under magnification for clean PCB traces, undamaged connector pins, and authentic OEM security seals.
- Series C IOTA Rig Verification: Modules are mounted onto an energized Series C test IOTA paired with a live Honeywell C300 Controller to verify backplane communication handshakes.
- High-Voltage Signal Simulation: We inject isolated 120 VAC test voltages across all 16 input channels using a calibrated source simulator, confirming accurate LED status response and bit registration in the Experion database.
- Dielectric Isolation Check: We verify channel-to-channel and bus isolation thresholds to ensure the module withstands industrial high-voltage transients.
- Anti-Static Packaging: Verified units are sealed in conductive shielding bags and cushioned in high-density closed-cell foam to prevent transit shock.
The Veteran’s Tech Trap Guide
⚠️ Watch Out for High-Voltage Safety Hazards
Unlike standard 24 VDC modules, the CC-TDI220 handles live 120 VAC / 125 VDC field circuits. Always execute rigorous lockout/tagout (LOTO) procedures on incoming power feeds before touching terminal blocks or unseating the card to prevent severe electrical shock.
❗ Verify Voltage Rating Compatibility
Do not confuse the CC-TDI220 (120 VAC/VDC) with low-voltage 24 VDC input cards. Plugging a low-voltage card into a 120V circuit will cause catastrophic hardware failure, while feeding low-voltage signals into a TDI220 will result in dead-man state detection failure.
⚠️ Backplane Pin Alignment
Series C cards slide smoothly when aligned correctly. Do not force an angled card into the IOTA header, or you will bend the delicate backplane connector pins and cause intermittent communication dropouts.
Frequently Asked Questions
Q: Is the CC-TDI220 module hot-swappable in a live system?
A: Yes, Series C architecture supports Removal and Insertion Under Power (RIUP). However, because this module deals with high-voltage 120 VAC field wiring, always verify safety interlocks and take necessary precautions to prevent unexpected process trips.
Q: Can this module accept standard 24 VDC digital input signals?
A: No. The CC-TDI220 is specifically designed for 120 VAC / 125 VDC nominal signals. For standard 24 VDC circuits, you must use the CC-PDIL01 module instead.
Q: Are these units brand new or refurbished?
A: We stock both Factory Sealed New Surplus and fully bench-tested Refurbished units. Every module is serialized and verified on a live industrial test bench prior to shipment.
Q: Why buy surplus instead of waiting for direct OEM fulfillment?
A: Extended OEM lead times on legacy hardware can leave your plant vulnerable for weeks or months. Our surplus stock provides immediate, identical-match hardware to get critical high-voltage loops back online today.
Q: What warranty comes with this purchase?
A: Every CC-TDI220 module is backed by our full 12-month operational warranty, protecting your plant investment against unexpected hardware failures.
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