Mitsubishi Meldas 64 Parameter Manual -

Report: Mitsubishi MELDAS 64-Parameter Manual

Step 3: Reload Parameters (Three Methods)

| Method | Speed | Required Equipment | | :--- | :--- | :--- | | RS232/RS422 I/O | Fast | PC with Meldas 64 communication software (Procomm or Tera Term) | | Memory Card | Fastest | PCMCIA SRAM card (512KB max) | | Manual Input | Painfully slow | Printed parameter sheets from when the machine was new |

Note from the manual (section 3.5.2): Input parameters in this order: NC → Servo → Spindle → Option → PLC. If you load PLC last, the machine will come alive.

Official Manual Information

The complete manual you're seeking is typically titled: mitsubishi meldas 64 parameter manual

Mitsubishi MELDAS 64 Series Parameter Manual
(Manual No.: IB-1500125 or similar variant)

It covers:

  • NC parameters (basic, axis, spindle, etc.)
  • PLC parameters
  • Servo parameters (for MDS-R/V series drives)
  • Spindle parameters
  • Communication parameters

Part 3: Navigating the Parameter Structure – A Deep Dive

To effectively use the Mitsubishi Meldas 64 parameter manual, you must understand its logical structure. While different manual revisions exist (e.g., IB-1500825, IB-1500843), the core numbering system is consistent.

3.3 I/O and PLC Parameters

  • Interface Allocation: Mapping physical input/output addresses (X/Y) to function relays (F/G).
  • High-speed I/O: Settings for tool changers and pallet changers using direct relay output.

2. Machine Tool Builder’s Archive

Often, the machine builder (e.g., Haas, Mazak, Okuma, Sharp, Lagun) creates a custom parameter manual that combines Mitsubishi’s base parameters with their own PLC assignments. Contact the builder’s legacy support department. Report: Mitsubishi MELDAS 64-Parameter Manual Step 3: Reload

C. PLC Interface Parameters (Parameter .D files)

The manual devotes a chapter to Device Mapping. You don’t edit these manually; you upload a file.D (ladder logic). However, you need these to diagnose:

  • X addresses: Physical inputs (e.g., X20 = Emergency stop relay).
  • Y addresses: Physical outputs (e.g., Y30 = Spindle coolant relay).
  • F & G signals: Communication between NC and PLC.

Pro Tip from the Manual: If the machine won’t home (reference return), check parameter #2013 ZRN and #2014 ZRNDIR. The manual’s table shows bit 0 = positive direction homing vs bit 1 = negative. This is a 50% likelihood of trouble. NC parameters (basic, axis, spindle, etc