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How to teach yourself about Shanghai Yongda elevator door machine.

Turn the stop switch on the car roof to the stop state. Turn DIP 1 of FB-DMC board of portal crane to on. Press the MODE key of FB-DMC board of portal crane until OC is displayed, and then press the SET key to measure the travel. Close DIP 1 of FB-DMC board of portal crane. The car roof stop switch is restored.