Overview
Configured for 115 V AC/DC digital signal termination and conversion, the Honeywell FC-TSDI-16115 (FC-TSDI-16115 Safe Active/Passive Digital Input FTA) provides 16 isolated input channels for Safety Manager field signal interfaces. Each channel accepts AC or DC input and converts the field state for the associated safety control system.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-TSDI-16115 |
| Brand | Honeywell |
| Product Type | Safe Active/Passive Digital Input FTA |
| Origin | USA |
| Weight | 0.2 kg |
| Dimensions | 17 x 7 x 5.8 cm estimated shipping size |
| Number of Input Channels | 16 |
| Input Voltage | 115 V, -15% to +30% |
| Input Frequency | DC or 40-300 Hz |
| Input Current | 7.5 mA +/- 1 mA at 115 V |
| Input Impedance | Non-inductive, > 9 kW |
| Input LOW | U <= 15 V or I <= 1.2 mA |
| Input Isolation | All inputs galvanically isolated |
| Approvals | UL, CE, TUV, CSA |
Process Signal Isolation and Input Characteristics
The FC-TSDI-16115 handles 16 digital field inputs with galvanic isolation between input channels. The module accepts either 115 V AC or 115 V DC field signals, subject to the stated voltage and frequency limits.
The input threshold defines the LOW state at U <= 15 V or I <= 1.2 mA. At a nominal 115 V input, the specified input current is 7.5 mA +/- 1 mA. The input circuit uses non-inductive impedance, with the supplied specification stating > 9 kW.
The AC input range includes 40-300 Hz, while the module also accepts DC input. Therefore, the field termination interface can process either AC or DC digital signals without requiring a separate AC-only or DC-only input version.
Galvanic isolation separates the individual input circuits electrically. This arrangement limits direct electrical coupling between field input channels and supports independent signal evaluation at the termination interface.
Frequently Asked Questions
Q: How many digital input channels does the FC-TSDI-16115 provide?
A: The module provides 16 digital input channels.
Q: Can the FC-TSDI-16115 accept both AC and DC input signals?
A: Yes. It accepts 115 V AC or 115 V DC input. The specified AC input frequency range is 40-300 Hz.
Q: What defines the LOW input state?
A: The supplied specification defines LOW as U <= 15 V or I <= 1.2 mA.
Field Installation Guidelines
Install the FC-TSDI-16115 according to the applicable Honeywell Safety Manager hardware documentation and cabinet installation requirements.
Verify the field wiring before energizing the module. Confirm that each input channel receives the intended 115 V AC or 115 V DC signal and that the applied voltage remains within the stated -15% to +30% range.
Route digital input wiring separately from high-energy power conductors where the cabinet design permits. Maintain clear identification for all 16 channels to prevent cross-connection during commissioning or maintenance.
Terminate shields and protective conductors according to the system grounding design. Do not use the signal shield as a substitute for the protective earth connection.
Before commissioning, check each input for correct polarity where DC signals are used and verify the expected HIGH and LOW states at the field termination interface. Confirm isolation and wiring continuity with the system de-energized and follow the approved site electrical safety procedure.
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