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4.1.2. Wiring check
(1) Power supply system wiring
Before switching on the power supply, check the following items.
(a) Power supply system wiring
The power supplied to the power input terminals (R, S, and T) of the servo drive should satisfy the
defined specifications.
(b) Connection of servo drive and servo motor
1) The servo drive power output (U, V, and W) should match in phase with the servo motor power
input terminals (U, V, and W).
2) The power supplied to the servo drive should not be connected to the power outputs (U, V, and
W). Otherwise, this will damage the servo drive and servo motor.
3) The grounding terminal of the servo motor should be connected to the PE terminal of the servo
drive.
(c) When you use a regenerative option, the built-in regenerative resistor and wirings should be
removed from the servo drive, the lead wire of built-in regenerative resistor connected to P+
terminal and C terminal should not be connected. The regenerative option should be connected
to P+ terminal and C terminal.
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