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Chapter 7 Installation
7–10
Precautions for connections
(1) Each unit is provided with an earth bar. Do not tighten the grounding bar together with the other
wires.
(2) The wires and crimp terminals used differ according to the motor capacity.
(3) Always ground the power supply.
(4) The phase order of the power supply's power terminals (L1, L2, L3) is random.
(5) Always observe the phase order relation of the servo drive terminals U, V, W and the linear motor
terminals U, V, W.
If the phase order is mistaken, the motor could vibrate or move suddenly.
(6) Never connect wires that could apply power to the servo drive output terminals U, V, W. The
servo drive unit could be damaged.
(7) The cannon plug used differs according to the motor. Confirm that the specified power is
connected to the servo drive's power terminals (L1+, L2+). Use a transformer if the power is not
as specified.
(8) Do not apply a commercial power supply onto the motor.
(9) Refer to the connection diagram and confirm that the wiring is correct.