(3) Items related to wiring
CAUTION
Correctly wire this product. Failure to observe this could result in motor runaway, etc.
Incorrect terminal connections could cause the devices to rupture or damage, etc.
Do not install a phase advancing capacitor, surge absorber or radio noise filter on the output side of the
drive unit.
Correctly connect the output side (terminal U, V, W). The motor will not run properly if incorrectly
connected.
Always install an AC reactor per each power supply unit.
Always install an appropriate breaker per each power supply unit. A breaker cannot be shared for multiple
power supply units.
Do not directly connect a commercial power supply to the motor. Failure to observe this could result in
faults.
When using an inductive load such as relays, always connect a diode in parallel to the load as a noise
countermeasure.
When using a capacitive load such as a lamp, always connect a protective resistor serially to the load to
suppress rush currents.
Do not mistake the direction of the surge absorption diode to be installed on the DC relay for the control
output signal. If mistaken, the signal will not be output due to fault in the drive unit, and consequently the
protective circuit, such as emergency stop, could be disabled.
Do not connect or disconnect the cables between units while the power is ON.
Do not connect or disconnect the PCBs while the power is ON.
Do not pull the cables when connecting/disconnecting them.
Securely tighten the cable connector fixing screw or fixing mechanism. The motor could come off during
operation if insecurely fixed.
Always treat the shield cables indicated in the Connection Manual with grounding measures such as cable
clamps.
RA
RA
COM COM
Control
output
signal
Drive unit
Control
output
signal
Drive unit
(24VDC) (24VDC)
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