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Example of communication parameter setting:
Communication
protocol selection
3-3-2. Start mode
There are three starting modes of frequency converter, which are direct starting, speed tracking restart and
asynchronous machine pre-excitation starting. They are selected by function parameter P4-00.
3-3-2-1. Direct start
Direct start mode is applicable to most small inertia loads. The frequency
curve of start-up process is shown in the following figure. The "DC
braking" function before startup is applicable to the driving of elevator
and heavy load; the starting frequency is applicable to the equipment
which needs to impact start, such as cement mixer equipment.
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