The Mitsubishi PD21B is a DC power supply module engineered for MITSUBISHI CNC control systems. It delivers stable power to MELSEC and MELDAS series controllers commonly integrated into MAZAK CNC machine tools and related industrial machinery. The unit provides regulated 5-24 V DC output with integrated status monitoring and field adjustment capability, enabling reliable operation in demanding manufacturing environments.
Technical Specifications
• Product Name: PD21B Power Supply
• Manufacturer: Mitsubishi
• Product Type: DC Power Supply Module
• Output Voltage: 5-24 V DC
• Weight: Approximately 1.75 kgs
• Status Indicator: LED indicator
• Adjustment: Fine-tune adjustment port
• Connector Type: 7-prong voltage interference connector
– Key Features
• Delivers regulated DC power across a 5-24 V range
• Integrated status LED for operational monitoring
• Field-adjustable output via dedicated fine-tune port
• Seven-prong connector for direct interface with control electronics
• Compact form factor at 1.75 kgs for integration into control cabinets
– Typical Applications
The PD21B operates as a critical power distribution component in MITSUBISHI CNC control architectures. Common deployment includes:
• MAZAK CNC machine tool control systems
• MELSEC industrial control platforms
• MELDAS motion control series
• Supporting circuitry in larger CNC machine assemblies
– Compatibility & Integration
The PD21B is purpose-built for MITSUBISHI CNC control ecosystems. It interfaces directly with MELSEC and MELDAS series controllers and is frequently specified in MAZAK machinery where Mitsubishi control systems are installed. The 7-prong connector ensures proper integration within Mitsubishi’s standardized electrical architecture. The unit is available through secondary markets in refurbished and repaired conditions.
