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15. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
15.3.2 Input power supply circuit
WARNING
Insulate the connections of the power supply terminals. Not doing so can cause an
electric shock.
Magnetic contactor wiring connector on the converter unit CNP1.
Unattached state may cause an electric shock.
CAUTION
Make sure to connect the magnetic contactor between the main circuit power
supply and L
1, L2, and L3 of the converter unit, and configure to shut off the power
supply on the side of the converter unit power supply. If the magnetic contactor is
not connected, a large current keeps flowing and may cause a fire when the
converter unit or the drive unit malfunctions.
Use the trouble signal to switch power off. Otherwise, a regenerative transistor fault
or the like may overheat the regenerative resistor, causing a fire.
Connect the power supply phases (U, V, W) of the servo amplifier and servo motor
correctly. Not doing so can cause the servo motor to run abnormally.
Do not connect a 3-phase 200V power supply or a 3-phase 400V power supply
directly to the servo motor. Doing so can cause a failure.
Check the model and input the correct voltage for the power supply of the
converter unit. When a voltage, which exceeds the maximum input voltage of the
converter unit specifications, is input, the converter unit and drive unit malfunction.
POINT
Magnetic contactor control connector (CNP1) of the converter unit can be made
valid or invalid with parameter No.PA02 of the converter unit. Refer to section
15.3.1 and 15.3.6 for details of CNP1 and section 15.5 for the parameter
settings.
For the external dynamic brake, refer to section 12.6 and 15.9.3.
(1) When magnetic contactor control connector (CNP1) is made valid (factory-set)
POINT
The converter unit controls the main circuit magnetic contactor.
Refer to section 15.3.7 (1) for the power circuit timing chart, section 15.3.7 (2) for
the alarm occurrence timing chart, section 15.3.7 (3) for the forced stop (EM1)
timing chart.
Make sure to connect a protection coordination cable (MR-J3CDL05M) and a
termination connector (MR-J3-TM). When they are not connected properly, the
servo-on may not be turned ON.
For the control power supplies of the converter unit and the drive unit, make sure
to turn ON or OFF at the same time.