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2. Terminal effectiveness description
The following table takes /SPD-D as an example, /SPD-A, /SPD-B signals are the same.
Signal/SPD-D terminal input status
Signal/SPD-D terminal logic
No need external terminal input
SI□ terminal no signal input
SI□ terminal has signal input
No need external terminal input
SI□ terminal has signal input
SI□ terminal no signal input
Speed up down is decided by