Mitsubishi Electric UM 5t Instruction Manual page 23

• No-load high-speed function setting mode
If the No-load judgment level is raised, the No-load high-speed operation will be smoothly
started (No-load high-speed operation can be started even if the load is heavier).
If the No-load high-speed function for lifting or lowering operation is disabled,
will flash.
If the upper limit for operation is not set, the No-load high-speed function will be disabled for
the lifting operation.
• Overload stoppage function setting mode
The value set for the overload judgment level represents the target level. This value, therefore,
does not represent a physical quantity of the load.
The optimum overload judgment level depends on the model.
If the overload judgment level is raised, the overload stoppage function will not be easily
activated (a heavier load can be lifted because the overload stoppage function is not easily
activated).
If the power supply voltage is low, overload may be detected even if the applied load is 100%.
The optimum overload judgment level depends on the operation conditions (voltage,
temperature, etc.).
For this reason, after installing the host, change the set overload judgment level value.
If the overload judgment level is extremely raised, operation may be stopped due to overcurrent,
starting error, speed adjustment error, etc. before detecting overload.
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