Datasheet

2.2. LED Description
There are three LED’s on the board that show the status of the power supply of the board.
 DL7 is connected to the USB supply from the PC, so it indicates that power is supplied to the USB port
and, therefore the complete communication section;
 DL6 is connected to the 12V step-down converter output (VDRV12V) and indicates that the inverter drive
voltage is supplied.
 DL5 is connected to the 5V step-down converter output (logic supply); it indicates that the control section
is supplied.
The other LED’s in the board (DL1, DL2, DL3 and DL4) are driven via software from the RL78/G14 MCU.
These have the following functions, but can be user programmable by editing the motor control project.
 DL1 - This is set to indicate that the RL78/G14 is operating
 DL2 - This is used to indicate a motor error
o Flashes quickly when there is an error, Off otherwise
 DL3 - a Watchdog, Ram Parity, Illegal access reset is generated.
o Is set off when a normal power on or manual reset occurs
 DL4 – Indicates the control loop interrupt timing. Lit to indicate operation
o The LED duty will change when idle or when the motor is running. This point or I/O pin can be
monitored with an oscilloscope
YRMCKITRL78G14 LED Locations
DL1, DL2, DL3, DL4
DL6
DL5
DL7