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4 Setup
MITSUBISHI CNC
4.1.3 Transition of LED Display After Power Is Turned ON
When CNC, each drive unit and the power supply unit power have been turned ON, each unit will automatically execute
self-diagnosis and initial settings for operation, etc. The LEDs on the front of the units will change as shown below
according to the progression of these processes.
If an alarm occurs, the alarm No. will appear on the LEDs. Refer to section "LED display when alarm or warning occurs"
for details on the alarm displays.
CAUTION
1. Always input emergency stop when starting the servo system.
2. Do not insert or extract the external STO input connector (CN8) after starting the servo system. Motor power will be shut
off and it may cause the collision of machine.
Executinginitial
communication with NC
Drive unit initialization complete
Waiting for NC power start up
Emergency stop state
The LED will alternate between
F#
E7
not lit.
(
# is the set axis No.)
Repeats lighting and going out.
(1st axis in the display example)
NC power ON
Waiting for NC
p
ower start u
p
NC
p
ower OFF
NC
p
ower ON
LED display
Servo ON state
Servo OFF sat
e
Drive units
Emergency stop state
NC power
ON
LED display
In servo ON
(
Char
g
e com
p
leted
)
Power supply unit
In initializing
Initializing completed
Contactor OFF
Ready OFF state
In ready ON
(In Charging)
Contactor ON