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Question:

Gantry planer lift knife coil and diode in parallel what role? Lift knife coil always burn, there is no good way?

Gantry planer lift knife coil and diode in parallel what role? Lift knife coil always burn, there is no good way?

Answer:

the coil if the original burn, should check whether the working voltage is the coil rated voltage.
you can tell the question of whether the diode is open
And the coil in parallel with the diode discharge is the role of discharge protection

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