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15. USING A DIRECT DRIVE MOTOR
CAUTION
This section does not describe the following items. For the items, refer to the corresponding sections below.
15.3 Operation and functions
When using the regenerative resistor, switch power off with the alarm signal.
Otherwise, a transistor fault or the like may overheat the regenerative resistor,
causing a fire.
Do not modify the equipment.
During power-on, do not open or close the power line of the direct drive motor.
Otherwise, it may cause a malfunction.
Connect the servo amplifier power output (U, V, and W) to the power input of the
direct drive motor (U, V, and W) directly. Do not let a magnetic contactor, etc.
intervene. Otherwise, it may cause a malfunction.
Servo amplifier
U
V
W
Input power supply circuit
Explanation of power supply system
Signal (device) explanations
Alarm occurrence timing chart
Interfaces
SSCNET III cable connection
Grounding
Switch setting and display of the servo
amplifier
POINT
When using the direct drive motor, set [Pr. PA01] to "_ _ 6 _".
For the test operation, refer to section 4.4.
The Z-phase pulse of the direct drive motor must be turned on after power-on.
When the machine configuration does not allow one or more revolution of the
direct drive motor, install the direct drive motor so that the Z-phase pulse can be
turned on.
Direct drive
Servo amplifier
motor
U
V
M
W
Item
Section 3.1
Section 3.3
Section 3.5
Section 3.7
Section 3.8
Section 3.9
Section 3.11
Section 4.3
15 - 4
Direct drive
motor
U
U
V
V
M
W
W
Reference
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