If you have lost the physical manual and cannot open the PDF, here are the "emergency recall" points for the VFGL:
The manual details how to send commands to the scanner. If using Mitsubishi PLCs (MELSEC iQ-R or Q series):
Mitsubishi VFGL (and VFGLC) is a high-performance inverter control system primarily used in
series passenger elevators. Technical documentation typically covers system calibration, fault diagnostics, and maintenance of its integrated electronic boards, such as the control board. Key Technical Procedures Load Weighing Calibration : Critical for leveling accuracy (within
). Procedures involve setting the elevator to "FULL AUTO" mode at the bottom floor and using specific potentiometer settings ( SET1=0, SET0=2 for empty cabin; SET1=0, SET0=3 for half-load) to write values to memory. Floor Height Memory mitsubishi vfgl manual
: During commissioning, "writing floor height memory" is performed in manual or low-speed operation to ensure accurate stop positions. Door Control Calibration : Maintenance includes adjusting speed curves (e.g.,
for closing speed) and executing "auto-learning" for position feedback. Maintenance & Troubleshooting Fault Code Retrieval : Most models use an for error checking. By toggling switches, the display shows 'E' while displays the specific error code. Component Inspection
: Essential maintenance includes checking the main circuit electrolytic capacitors for swelling and inspecting wiring connectors (especially encoder and door lock circuits) to prevent crashes. Energy Efficiency : The system can be paired with a Regenerative Converter (PCNV)
, which feeds power back into the building's network, potentially saving up to 35% energy. mitsubishi electric building solutions corporation Available Documentation Types If you have lost the physical manual and
Manuals for the VFGL series are often categorized into specialized guides available on platforms like F Elevator Installation Manuals : Covers electrical preparation and system configuration. Debugging/Commissioning Guides : Detailed steps for initial setup and sequence tests. Troubleshooting Guides
: Comprehensive lists of fault codes and corrective actions.
Since "VFG-L" typically refers to the VFG-L Series Barcode Scanner (often manufactured by Denso Wave, a subsidiary of Toyota, and distributed/supported by Mitsubishi Electric Automation in certain industrial contexts), this guide focuses on that device. If you are instead looking for a specific PLC module or VFD (Variable Frequency Drive) and "VFG-L" was a typo, please see the note at the end.
If you manage to get your hands on the factory PDF or a bound copy, look for these specific chapters: The manual details how to send commands to the scanner
The manual dedicates 5 pages to stall prevention. If your drive trips E.OC3 (Overcurrent at steady speed), you haven't set the stall level correctly.
The most common mistake with VFGL drives is incorrect wiring.
Pro Tip from the manual: The VFGL uses a sink logic default (terminal SD is common). If you are using a PLC with positive logic, you must change the internal jumper or parameter Pr. 60.
This is a common user pain point. Mitsubishi often re-badges or bundles manuals.
Alternative manual: Download the FR-A500 Instruction Manual (IB-0600063) . Use it with caution—verify terminal numbers against your physical VFGL unit.
