Product Details
The Honeywell FTA-T-01, also cataloged as the FTA-T-01 Fail-Safe Digital Input Modules, operates as a dedicated hardware component for field signal termination and isolation interfacing between system interconnection cables (SICs) and external field wiring within Safety Manager architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FTA-T-01 |
| Brand | Honeywell |
| Origin | USA / Global Manufacturing |
| Dimensions | 119 mm x 91 mm x 28 mm (4.7 in x 3.6 in x 1.1 in) |
| Operating Temp | -40 to +85 deg C (-40 to +185 deg F) |
| Power Consumption | Passive field termination assembly |
| Input Voltage | 24/48/60 VDC |
| Number of Channels | 24 channels (3 groups of 8 channels, 250 mA fuse in common +) |
| Communication Protocol | RS485 |
| Mounting Type | DIN rail mounting |
| Integrated Protection | Built-in surge protection and signal isolation |
Cold Junction Compensation (CJC) and Channel-to-Channel Isolation
The FTA-T-01 fail-safe input termination module maintains strict galvanically isolated signal routing across its 24 field channels. Arranged in three distinct groups of eight channels, each common positive feed is equipped with an integrated 250 mA fast-acting fuse to isolate field short circuits from the central backplane logic.
When routed alongside thermocouple wiring and analog lines utilizing the 4-20 mA HART loop protocol, the module's surge protection network dampens transient spikes without introducing common-mode noise. High channel-to-channel isolation specs prevent cross-channel interference and maintain system measurement accuracy across dense DIN-rail termination racks.
Frequently Asked Questions
Q: How are the 24 digital input channels grouped and fused on the FTA-T-01?
A: The module separates the 24 channels into three isolated groups of eight channels, with each group protected by a 250 mA fuse on the common positive terminal.
Q: What input voltages are supported by the FTA-T-01 digital input module?
A: The module accepts field discrete signals rated at 24 VDC, 48 VDC, and 60 VDC.
Q: What communication protocol is utilized by the module for onboard status telemetry?
A: The module incorporates RS485 serial communication for signal conditioning and diagnostic state reporting.
Field Installation Guidelines
- Snap the module securely onto a standard TS35 DIN rail and verify mechanical retention clips are fully engaged.
- Ensure power to the 24/48/60 VDC field loop circuits is isolated prior to connecting or disconnecting terminal screw blocks.
- Connect system interconnection cables (SICs) firmly to the designated interface connector, securing retaining screws to prevent accidental disconnects.
- Verify 250 mA replacement fuses match factory ratings exactly before powering energized input groups.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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