Key Technical Specifications
- Product Model: KNIEL FPD 375.16PC/24.4
- Manufacturer: Kniel System-Electronic
- Output Voltage: 24 VDC (Adjustable)
- Output Current: 16 A
- Output Power: 375 W
- Input Voltage: Wide-range AC input (Adaptable to global standards)
- Protection Mechanisms: Over-current, Over-voltage, Over-temperature
- Form Factor: Modular Rack-mount Design
- Operating Temp: Industrial-grade temperature range
- Diagnostic Interface: Status LEDs and Reset after error capability
- Typical Application: ASML Semiconductor Equipment
Product Introduction
The KNIEL FPD 375.16PC/24.4 is a high-performance, modular power supply specifically engineered for demanding industrial and semiconductor applications. It provides stable, regulated 24 VDC power at up to 16 A to critical rack-mounted control systems, ensuring continuous operation in harsh environments.This unit integrates advanced power management with comprehensive hardware protections, including over-current, over-voltage, and over-temperature safeguards. Delivering 375 W of continuous power, it prevents downstream equipment damage during grid fluctuations. (Always double-check the exact alphanumeric suffix on the nameplate, as Kniel frequently updates internal component revisions for specific OEM integrations like ASML).
Installation & Configuration Guide
Preparation (10 min)
Verify the target rack has an available slot and adequate cooling airflow. Gather the necessary torque screwdriver for the rack connectors. Review the OEM equipment manual to confirm the 24 VDC / 16 A requirement matches your load.Removal (5–10 min)
Disconnect the mains supply immediately. Warning: The label explicitly states “HAZARDOUS VOLTAGE ENCLOSED.” You must wait at least 3 minutes before removing the power supply from the rack to allow internal capacitors to discharge safely. Never touch the connector pins directly.Installation (10 min)
Align the KNIEL FPD 375.16PC/24.4 with the rack backplane and slide it into position. Secure the mounting hardware firmly to ensure proper grounding and thermal dissipation. Reconnect the DC output wiring to the downstream load, ensuring polarity is correct.Power-On & Test (10 min)
Restore the mains supply. Observe the front panel status LEDs. The green “OK” indicator should illuminate, confirming nominal 24 VDC output. Measure the output voltage at the load terminals with a multimeter to verify it reads 24 VDC ±5%.
Troubleshooting Quick Reference
| Symptom | Probable Cause | Corrective Action |
|---|---|---|
| Unit Dead / No LEDs | Blown internal fuse or no AC input | Verify mains voltage at the inlet. Check facility breaker. |
| Red Fault LED Illuminated | Over-current or Over-temp trip | Reduce load. Ensure rack cooling fans are operational. |
| Output Voltage Dropping | Load exceeding 16A limit | Measure actual current draw. Check for shorted downstream components. |
| Intermittent Shutdown | Latched fault condition | Power cycle the unit (Switch off mains, wait 3 mins, restart). |
| Excessive Heat | Blocked airflow | Clear obstructions around the front/rear ventilation grilles. |
Dimensions, Mounting & Wiring Notes
- Form Factor: Standard Industrial Rack-mount
- Mounting: Backplane connector with mechanical retention
- Wiring: High-current DC output terminals; requires proper crimping and torque specification
- Safety Clearance: Maintain minimum clearance around vents for forced-air cooling
FAQ
Can I use this in a standard 19-inch server rack?
No, this is a specialized industrial rack power supply. It requires a compatible Kniel backplane or a custom OEM rack designed for its specific form factor and connector pinout.I need to replace this in an ASML tool. Is it a direct swap?
Generally yes, but ASML tools often use customized firmware or specific revision levels. Always match the exact part number (FPD 375.16PC/24.4) and verify the revision code on the nameplate before installing.What happens if the unit overheats?
The KNIEL FPD 375.16PC/24.4 features built-in over-temperature protection. It will shut down the output to prevent damage. Once it cools, you can reset it by cycling the mains power.How long do I have to wait after unplugging it?
At least 3 minutes. The internal high-voltage capacitors retain a hazardous charge even after AC power is removed. The warning label on the unit mandates this wait time for technician safety.Does it support parallel operation for more current?
Kniel power supplies generally do not support direct parallel connection without specialized active current-sharing modules. Check the specific technical data sheet for parallel capability before attempting.Where can I find the technical data sheet?
The unit label typically includes a reference to the technical data (e.g., Nr. 353-010-04.03). You can use this number to request the exact PDF datasheet from Kniel or authorized distributors.Is 375W enough for my application?
Calculate your total downstream load. If your equipment draws 14 A continuously at 24 VDC (336 W), this 375 W unit is operating at 90% capacity. It is highly recommended to maintain a 20% power supply headroom for reliability.
