Mitsubishi Elevator Leveling Relay P226024B000-G04L200

P226024B000-G04L200 is commonly used in Mitsubishi elevator leveling and stopping control systems.

This relay is generally associated with:

• floor leveling control
• re-leveling operation
• stopping position correction
• door zone coordination

Usually installed inside Mitsubishi controller cabinets together with leveling signal circuits and floor detection systems.

Common Field Situation

In some older Mitsubishi elevators in Poland and Oman, leveling-related problems may appear after long-term operation, especially in buildings with heavy daily traffic.

Typical situations may include:

• elevator stops slightly above floor level
• re-leveling movement happens repeatedly
• door zone signal becomes unstable
• stopping accuracy changes intermittently

During troubleshooting, technicians sometimes inspect both the leveling relay and leveling sensor circuits together.

Why Leveling Problems Happen

Leveling instability is not always caused by the sensor itself.

In some Mitsubishi systems, aging relay contacts or unstable relay response may also affect:

• floor position correction
• leveling signal transmission
• door opening logic
• controller stopping response

Because of this, some maintenance companies replace the relay during modernization work when repeated leveling faults occur.

System Relationship

The leveling relay usually works together with:

• leveling sensors
• door zone switches
• controller signal boards
• floor position circuits

If one part of the leveling signal chain becomes unstable, the elevator may show intermittent stopping problems.

Some Mitsubishi controller generations use different relay structures depending on the leveling architecture.

Installation Notes

Before replacement:

• relay code should match original configuration
• terminal layout must be confirmed carefully
• control voltage should be checked before installation

In some old controller cabinets, technicians also clean related relay terminals during maintenance work.

FAQ

Why does the elevator keep re-leveling after stopping?

In some Mitsubishi systems, unstable leveling relay response or sensor signal fluctuation may cause repeated re-leveling movement.

Can relay problems affect door opening?

Yes. If leveling signals become unstable, door zone logic may also be affected during stopping operation.