RX72T CPU Card
User’s Manual
R12UZ0031EJ0100 Rev.1.00
Page 12 of 29
Feb. 21, 2019
5.2
Operation
5.2.1
Basic Operation
Out of the box the product is programmed with sensor-less vector control software for the RX72T. Table 5-1 lists the
software specifications and the basic operations when connected to the INV-BRD.
Table 5-1 Initial Software Specifications
Item
Specification
Control method
Sensorless vector control
VR1
Clockwise turn: Motor shaft rotates clockwise.
Counterclockwise turn: Motor shaft rotates counterclockwise.
SW1
ON: Motor rotation enabled
OFF: Motor rotation disabled
SW2
Cancels error state: OFF
→
ON
→
OFF after an error:
LED1
ON: SW1 ON and normal state.
OFF: SW1 OFF or error state.
LED2
ON: error state.
OFF: normal state.
5.2.2
Canceling an Error State
If an error occurs, LED2 lights on the INV-BRD and the product, and motor rotation stops. To recover, it is necessary to
turn off toggle switch SW1 and turn on toggle switch SW2 on the INV-BRD, and then turn off toggle switch SW2 again.
5.3
In Case of Abnormal Odor, Smoke, Abnormal Sound, Overheating, Etc.
The INV-BRD is equipped with a toggle switch (S1) to cut off the flow of current to the inverter. If an abnormal
condition (such as abnormal odor, smoke, abnormal sound, or overheating) occurs, turn off S1 to cut off current flow to
the inverter.
OFF
S1
INV-BRD
RX72T CPU Card
Figure 5.2 Cut off current
