Description
The Yaskawa CPS-18F8 is a rack-mounted power supply unit designed for Yaskawa Yasnac CNC controllers and industrial automation racks. It converts standard alternating current input into regulated direct current voltages to power system backplanes, processor boards, and associated control logic cards.
Technical Specifications
| Parameter | Value |
| Manufacturer | Yaskawa Electric Corporation |
| Product Type | Rack-Mounted Power Supply Module |
| Input Voltage Range | 200 to 230 VAC, 50/60 Hz |
| Output Voltages | +5 VDC and +24 VDC rails (model-dependent current ratings: typically +5V at 1.5 A, +24V at 4.5 A) |
| Mounting Type | Rack slot installation (Yasnac controller chassis) |
| Operating Temperature | 0 to +55°C (standard industrial panel limits) |
| Cooling Method | Natural convection |
| Enclosure Protection | IP20 (intended for installation inside a sealed electrical cabinet) |
Supply Terms & Commercial Details
- Availability: Stock levels fluctuate due to legacy component lifecycle status; verify current inventory for immediate dispatch.
- Lead Time: Typically ships within 3 to 5 business days for items in stock.
- Warranty: 12-month standard replacement warranty covering operational defects.
- Condition: New Surplus, Factory Sealed, or Fully Tested Refurbished (confirm exact packaging state upon inquiry).
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Engineering & Integration Guidance
When integrating or replacing the CPS-18F8 power supply module within a Yaskawa Yasnac controller rack, observe the following technical parameters:
- Input Power Verification: Confirm that incoming line voltage matches the 200 to 230 VAC specification before applying power, as mismatching input taps can damage internal switching components.
- Backplane Connections: Ensure the module is firmly seated into the designated rack slot to secure proper pin engagement on the CON1 and CON2 DC distribution headers.
- Thermal Management: Maintain adequate clearance above and below the controller chassis to allow natural convective airflow, preventing localized thermal stress on electrolytic capacitors.
- Verification: Always consult the specific machine tool or controller OEM manual to cross-reference load current requirements against the power supply output ratings prior to commissioning.
Frequently Asked Questions
What controllers utilize the Yaskawa CPS-18F8 power supply?
This unit is primarily utilized in Yaskawa Yasnac CNC controller racks and associated industrial automation processor chassis requiring dual-voltage DC power rails.
Can the CPS-18F8 be hot-swapped while the enclosure is energized?
No. Always de-energize the main AC input source to the control cabinet before inserting or removing the power supply module to prevent electrical arcing and backplane bus damage.
What is the difference between the CPS-18F8 and standard CPS-18F variants?
Suffix designations typically denote minor revision updates, terminal layout adjustments, or specific OEM configuration requirements for particular machine tool architectures. Verify exact part nomenclature against your existing hardware label.




