4-1
Processing at Power ON and Power
OFF
4-1-1
Power ON Operation
Once the power supply to the Power Supply Unit starts, the Motion Controller enters the program op-
eration ready status after the following time elapses.
In addition, when the Unit is in the operation-ready status, the RDY LED lights up.
Motion Controller Startup Time at Power ON
It takes approximately 60 to 80 seconds for the Motion Controller to start up.
Since the startup time is affected by the slave/unit configuration, confirm it on an actual device.
4-1-2
Power OFF Operation
This section describes how to perform the power OFF operation if a user program attempts to write
data to the USB memory, or if the user program is to be downloaded to the built-in flash memory.
Writing to the USB Memory
If the power is interrupted while a user program is writing data to the USB memory, the data may be
corrupted.
Confirm that no data is being written before you turn OFF the power supply.
Downloading to the Built-In Flash Memory
When you download a user program from the Power PMAC IDE, the data is once stored in the CPU
cache before it is saved into the Motion Controller.
This means that, if you turn OFF the power supply immediately after starting the save operation, the
CPU Unit cannot complete the transfer of the data from the cache to the built-in flash memory, which
may result in a save operation failure or corruption of the saved data.
If the data is corrupted, issue a re-initialization command ($$$***) from the Power PMAC IDE, and
download the program again.
If the CPU Unit fails to connect to the Power PMAC IDE, refer to 5-3-3 Initialization of the Motion Con-
troller on page 5-7 and implement initialization.
Procedure to Download to the Built-in Flash Memory
Use the following procedure to download the user program to the built-in flash memory.
The procedure can be used for any firmware revision of the PMAC firmware.
1 Download the user program from the Power PMAC IDE.
2 At the Power PMAC IDE terminal, execute the save command.
4 Mounting and Wiring
4-2
CK3E-series Programmable Multi-Axis Controller User’s Manual Hardware (I610)
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