2. Wiring and connection
2-13
[
FDA7550-H ~ FDA7750-H Upper Terminal]
[FDA7550-H ~ FDA7750-H Bottom Terminal]
The usage and wiring method of FDA7220-H ~ FDA7750-H are as follows.
1) As the main power of the power circuit, connect the R,S and T terminal to 3 phase
AC380~440[V]. Please check the voltage specifications before wiring the power.
2) Internal fan power is connected to R and T terminals.
3) Connect single-phase AC380~440[V] to the control circuit terminals r and t according
to the model's voltage specification.
4) Connect the regenerated resistance between the terminals P and B.
5) At the U, V and W terminal, connect the U, V and W phase of the servo motor.
6) Ground the FG terminal. Connect the grounding wire of the servo motor with this
terminal.
AC SERVO
operating
device
External
regenerated
resistance
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