Overview
The Honeywell FC-TPSU-2430, also cataloged as the FC-TPSU-2430 DC/DC converter, operates as a dedicated hardware component for converting 24 V DC to 30 V DC power and distributing regulated current to field termination assemblies within industrial process control systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FC-TPSU-2430 (Spare Model: FC-TPSU-2430 V1.1) |
| Brand | Honeywell |
| Country of Origin | USA |
| Weight | 0.14 kg |
| Dimensions | 2 x 19 x 12.8 cm |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | ~30 W max output |
| Nominal Input Voltage | 24 V DC |
| Input Voltage Range | 18–36 V DC |
| Inrush Current | <= 4 A |
| Output Voltage | 30 V DC, +/- 0.25 V |
| Output Current | 1 A |
| Short-Circuit Current | < 3.3 A |
| Ripple (0–30 MHz) | < 0.1 Vrms |
| Overvoltage Protection | 33 V |
| Long-Term Stability | < 0.3% (after 30 min operation) |
| Approvals & Safety Class | CE, TUV, UL, CSA, FM, up to and including SIL3 |
DCS Power Distribution and Channel Isolation
The unit provides isolated power delivery from standard 24 V DC bus architectures to 30 V DC field termination assemblies (FTAs). Featuring galvanic isolation and low ripple characteristics of less than 0.1 Vrms across the 0 to 30 MHz frequency spectrum, the module ensures signal integrity and prevents common-mode noise propagation across distributed control system loops. Built-in overvoltage protection triggers at 33 V, safeguarding downstream analog and digital circuits against transient surges and voltage spikes in safety-instrumented environments up to SIL3 compliance levels.
Frequently Asked Questions
Q: What is the primary function of the inrush current limitation on the FC-TPSU-2430?
A: The inrush current is strictly clamped to <= 4 A during initial power-up transients to prevent system-level voltage sags on the primary 24 V DC backplane or power distribution bus.
Q: How does the module respond to short-circuit conditions on the 30 V DC output?
A: The output short-circuit current is hardware-limited to < 3.3 A, protecting internal switching components from thermal overload until the external fault condition is eliminated.
Q: Is this converter rated for use in safety-instrumented loops?
A: Yes, the module supports safety instrumented system integration up to and including SIL3, backed by international certifications including CE, TUV, UL, CSA, and FM.
Field Installation Guidelines
- Enclosure Mounting: Mount the unit securely on standard industrial rails within a protective cabinet that shields against moisture, conductive dust, and corrosive airborne contaminants.
- Wiring and Separation: Utilize copper conductors rated for at least 75 deg C. Maintain physical separation between low-voltage DC power wiring and high-voltage AC power lines to minimize electromagnetic interference (EMI).
- Grounding Practice: Connect the designated module grounding points to the system reference ground using low-impedance grounding straps to satisfy EMC and safety directives.
- Thermal Management: Leave adequate vertical and horizontal clearance around the module housing to allow natural convection cooling and prevent localized overheating.
Reviews
There are no reviews yet.