S8FS-G Switching Power Supply
Thank you for purchasing the S8FS-G. This Instruction Manual describes the functions, performance, and application methods required to use the S8FS-G. Ensure that a specialist with electric knowledge operates the S8FS-G. Read and understand this Instruction Manual, and use the product with enough understanding. Keep this Instruction Manual close at hand and use it for reference during operation.
Nomenclature (Fig. 1)
Fig. 1: Component Identification
The diagrams show representative models (e.g., S8FS-G050C, S8FS-G100C, S8FS-G600C).
- ① and ②: Input terminals (L), (N). The fuse is located on the (L) side.
- ③: Protective earthing terminal [ground symbol]. This is the protective earthing terminal specified in the safety standards. Always ground this terminal.
- ④, ⑤, ⑥ and ⑦: DC output terminals (–V), (+V).
- ⑧: Output indicator (DC ON: green).
- ⑨: Output voltage adjuster.
Safety Information
General Safety Precautions
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage.
General Warnings:
- Minor electric shock, fire, or Product failure may occasionally occur. Do not disassemble, modify, or repair the Product or touch the interior of the Product.
- Minor burns may occasionally occur. Do not touch the Product while power is being supplied or immediately after power is turned OFF.
- Minor fires may occasionally occur. Tighten terminal screws to the specified torque (M3.5 screws: 6.55 to 10.00 lb-in (0.74 to 1.13 N•m), M4 screws: 9.56 to 11.68 lb-in (1.08 to 1.32 N•m)).
- Minor injury due to electric shock may occasionally occur. Do not touch the terminals while power is being supplied. Always close the terminal cover after wiring. Working voltage can be 370 V max. inside. This voltage can be also available 30s after the switch off.
- Do not allow any pieces of metal or conductors or any clippings or cuttings resulting from installation work to enter the Product.
Environmental and Installation Precautions
Installation and Storage Environment
Storage: Store the Product at a temperature of −25 to 75°C and a humidity of 90% or less.
Installation Environment:
- Ensure proper heat dissipation for long-term reliability.
- Models S8FS-G015 to S8FS-G150 are cooled by natural convection; ensure adequate air circulation.
- Models S8FS-G300 and S8FS-G600 are cooled by forced airflow; do not block ventilation holes.
- Do not use the Product beyond the derating curve range. Refer to the Product catalog for derating curves.
- Use at a humidity of 90% or less.
- Avoid direct sunlight.
- Avoid places with liquid penetration, foreign substances, or corrosive gas.
- Avoid places subject to shock or vibration. Keep away from vibration sources like contact breakers.
- If used in areas with excessive electronic noise, separate the Power Supply from noise sources.
- Do not loosen screws on the Power Supply to prevent internal part damage due to poor heat radiation.
Installation and Wiring
Grounding: Connect the ground completely using the protective earthing terminal [ground symbol]. Failure to do so may cause electric shock or malfunction.
Wiring: Ensure input and output terminals are wired correctly to prevent fire hazards. Use specified wiring materials to prevent smoking or ignition from abnormal loads.
Terminal Current Ratings:
- S8FS-G015 to S8FS-G300: 20 A per terminal.
- S8FS-G600: 30 A per terminal.
- If current exceeds rating, use two terminals simultaneously.
Clearance and Creepage Distances:
- Between L, N, FG terminals and metal case: 6.4 mm min.
- Between +V, -V, FG terminals and metal case: 3.2 mm min.
Terminal Block Tightening: Do not apply more than 150 N force to the terminal block.
Preparation: Remove protective sheets before power-on.
Specific Safety Standards
Use Environment: Pollution degree 2.
Isolation: DC output terminals are electrically isolated from input terminals.
Overvoltage Categories: Category III (≤ 2,000 m), Category II (2,000 m < and ≤ 3,000 m).
Protection Class: Class I.
Climatic Class: 3K3.
Applicable Standards: EN50178, UL62368-1, EN62368-1 (Category II), EN61558-2-16, IEC61558-2-16, EN/IEC60204-1.
DC Input Safety: Standards apply for DC input with specified voltages (120 to 320 VDC). Use appropriate fast-acting fuses on the positive (L) side.
DC Input Fuse Recommendations:
- S8FS-G015/030: 320 VDC min., 3A
- S8FS-G050: 320 VDC min., 4A
- S8FS-G100: 320 VDC min., 8A
- S8FS-G150: 320 VDC min., 10A
- S8FS-G300: 320 VDC min., 12A
- S8FS-G600: 320 VDC min., 20A
Product Features and Operation
Mounting
Standard Mounting
Mounting Panel: Metal plate is recommended.
Screw Holes: Ensure screws do not protrude more than 3 mm inside the Power Supply. Refer to datasheet for longer screws.
Mounting Torque:
| Screw Size | Torque |
|---|---|
| M3 screws | 0.48 to 0.59 N·m |
| M4 screws | 1.08 to 1.32 N·m |
Standard Mounting on DIN Rail
Clearances: Minimum 20 mm clearance required on sides and top/bottom (30 mm min. for some configurations as per diagrams).
Diagram Description: Figure 2 shows standard mounting, indicating clearances. Figure 3 shows standard mounting on a DIN rail, also indicating required clearances.
Output Voltage Adjustment
Default Setting: Rated voltage.
Adjustable Range: -10% to +15% of rated output voltage using the V.ADJ adjuster (⑨).
Adjustment: Clockwise increases voltage, counterclockwise decreases voltage.
Note: Output voltage may exceed the +15% range. Verify output voltage and ensure the load is not destroyed during adjustment.
Input Voltage Tolerance
Rating: 100 to 240 VAC.
Mains Supply Tolerance: -10% to +10% (90 to 264 VAC).
Parallel Operation
This Power Supply is not designed for parallel operation. Attempting parallel operation may damage internal parts. Parallel operation is possible with optional models (e.g., S8FS-G60024-W).
Built-in Fan
(For S8FS-G300, S8FS-G600): The built-in fan cannot be replaced.
Tests
Dielectric Strength Test
Rating: 3,000 VAC for 1 minute between input and output terminals.
Test Condition: Cutoff current set to 20 mA. Ensure output terminals are short-circuited during the test.
Insulation Resistance Test
Use a DC ohmmeter at 500 VDC. Ensure output terminals are short-circuited during the test.
Protection Functions
Overload Protection
Automatically protects the load and product from overcurrent. Normal operation resumes when current returns to the rated range. Notes: Avoid continuous short-circuit or overload conditions, as they may damage internal parts. Do not use for applications with frequent inrush current or load-end overloading.
Overvoltage Protection
Automatically protects the product and load from overvoltage. Activated when output voltage exceeds approx. 120% of rated output voltage. To reset, turn off power for at least 3 minutes, then turn it back on. Ensure the cause of overvoltage is cleared before resetting.
Overheat Protection (S8FS-G300, S8FS-G600)
Protects internal components if internal temperature rises excessively (e.g., due to fan failure). To reset, turn off input power for at least three minutes, then turn it back on.
Conformance to EU Directives
Refer to the catalog and manual for EMC compliance operating conditions. Note: Using S8FS-G150 at 80% or more of rated load may not meet harmonics standards. Do not connect to public power sources under these conditions.
Contact Information
For detailed information on product specifications, warranty, and limitations, refer to the product catalog and datasheets.
OMRON Corporation
Address: SHIOKOJI HORIKAWA, Shimogyo-Ku, Kyoto, 600-8530 Japan
Regional Contact Information:
- Europe/Middle East/Asia/Africa/Russia: OMRON Europe B.V., Wegalaan 67-69, 2132 JD Hoofddorp, The Netherlands. Phone: +31-23-56-81-300. Website: http://industrial.omron.eu/
- United Kingdom: OMRON ELECTRONICS LTD. Phone: +44-1908-258-258
- Germany: OMRON ELECTRONICS G.m.b.H. Phone: +49-2173-6800-0
- France: OMRON ELECTRONICS S.A.S. Phone: +33-1-4855-9086
- USA: OMRON ELECTRONICS LLC. Phone: 1-800-55-OMRON / 1-847-843-7900
- Canada: OMRON CANADA INC. Phone: 1-866-986-6766
- Taiwan: OMRON Taiwan Co., Ltd. Phone: +886-2-2715-3331
- China: OMRON Automation (China) Co., Ltd. Phone: +86-21-6023-0333
- Hong Kong: OMRON (Hong Kong) Automation Co., Ltd. Phone: +852-2375-3827
- South Korea: OMRON Electronics Korea Co., Ltd. Phone: +82-2-519-3988
- Australia: OMRON ELECTRONICS PTY.LTD. Phone: +61-2-9878-6377
- Singapore: OMRON ASIA-PACIFIC PTE.LTD. Phone: +65-6-547-6789
- Italy: OMRON ELECTRONICS S.P.A. Phone: +39-02-32681
- Spain: OMRON ELECTRONICS IBERIA S.A.U. Phone: +34-91-37-77-9-00
