1. Safety PLC Change
Previous model: CSMP309MO
New model: CSMP208MO
Reason for change:
- Cost reduction and production efficiency improvement
Important note:
- Not fully compatible with the previous program
- Requires a new software version and verification
- The old model will remain for limited service use only
2. Power Supply Upgrade
Previous model: 220 VAC Single-phase 20 A (Morsun)
New model: 300 – 500 VAC Three-phase 20 A with electronic circuit breaker (Phoenix Contact)
https://www.phoenixcontact.com/ko-kr/products/power-supply-unit-trio3-ps-3ac-24dc-40-8c-iol-1362792
Reason for change:
- Compatible with US-spec machines without external transformer
- Integrated breaker improves safety and diagnostic capability
- Higher input range provides better power efficiency and stability
3. Expected Benefits
- Reduced overall component cost
- Standardized design for global export models
- Improved maintenance efficiency through electronic protection and diagnostics
4. Summary Table
| Category | Previous | New | Remarks |
|---|---|---|---|
| Safety PLC | CSMP309MO | CSMP208MO | Cost reduction, not fully software-compatible |
| Power Supply | 220 VAC Single 20 A (Morsun) | 300–500 VAC Three-phase 20 A + Electronic Breaker (Phoenix Contact) | Transformer-free design, improved stability |
5. Implementation Plan
- Applied sequentially to new production models
- Existing machines remain unchanged
