Overview
The Honeywell FTA-T-02, also cataloged as the FTA-T-02 Fail-safe Digital Output FTA, operates as a dedicated hardware component for fail-safe digital output field termination within Honeywell process control systems. The module provides physical termination for 24 output channels arranged in six groups of four, supporting field wiring through screw terminals for 24 VDC, 48 VDC, and 60 VDC output applications.
Suffix Breakdown & Model Matrix
The available documentation identifies FTA-T-02 as a single fixed catalog number. No official suffix variants or ordering matrix are specified.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FTA-T-02 |
| Brand | Honeywell |
| Origin | Not specified |
| Product Type | Fail-safe Digital Output Field Termination Assembly (FTA) |
| Number of Channels | 24 (6 groups of 4) |
| Supported Output Voltage | 24 VDC, 48 VDC, 60 VDC applications |
| Maximum Voltage | 36 VAC / 50 VDC (IEC 1010 Overvoltage Category III); 125 VAC / 150 VDC (IEC 1010 Overvoltage Category II) |
| Maximum Continuous Current per Channel | 2 A |
| Termination Type | Screw terminals |
| Maximum Wire Size | 0.25 cm2 (AWG 14) |
| Strip Length | 0.7 cm (0.28 in) |
| Terminal Tightening Torque | 0.5 Nm (0.37 ft-lb) |
| DIN Rail Compatibility | TS32, TS35 x 7.5 |
| Rail Length Required | 14.6 cm (5.75 in) |
| Dimensions | 14.5 cm x 7 cm x 5.7 cm |
| Weight | Not specified |
| Operating Temp | Not specified |
| Power Consumption | Not specified |
| Approvals | CE, UL |
| Product Status | Discontinued by manufacturer |
Channel Isolation Considerations for Process Control Systems
The FTA-T-02 functions as the field termination interface between controller output modules and field wiring. Each output channel is organized into fixed channel groups to simplify termination and maintenance activities. Proper field wiring practices, including separation of output circuits and correct cable routing, assist in minimizing electrical interference between adjacent output channels in process control installations.
Frequently Asked Questions
Q: Does the FTA-T-02 support hot replacement while field wiring remains energized?
A: The available product documentation does not specify hot-swap capability. Field replacement should follow the control system maintenance procedure and plant electrical isolation requirements.
Q: What is the maximum field load supported on each output channel?
A: Each channel supports a maximum continuous current of 2 A, provided the applied voltage remains within the specified electrical ratings.
Q: Which DIN rail standards are supported?
A: The module is designed for installation on TS32 or TS35 x 7.5 DIN EN mounting rails.
Field Installation Guidelines
- Mount the module on a compatible TS32 or TS35 x 7.5 DIN rail before connecting field wiring.
- Verify terminal torque using the specified value of 0.5 Nm to maintain secure electrical connections.
- Use conductors no larger than AWG 14 (0.25 cm2) and prepare each conductor with approximately 0.7 cm stripping length.
- Route field output wiring separately from high-energy AC power cables to reduce conducted electrical noise.
- Terminate cable shields according to the system grounding philosophy and applicable plant electrical standards.
- Confirm field voltage and load current remain within the published electrical ratings before energizing the circuit.
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