Led Display Transition After The Power Is Turned On - Mitsubishi Electric MDS-B-SPJ2 Series Specification Manual

8.1.2 LED display transition after the power is turned ON

When the axis No. is set and the spindle amplifier power or NC power is turned ON, the spindle
amplifier is automatically initialized, etc., for self-diagnosis and operation. The 7-segment LED display
on the front of the spindle amplifier main unit changes as shown below, together with the progression
of these processes.
The 7-segment LED also displays the alarm No. when an alarm occurs. Refer to section "11.
Troubleshooting" for details on alarm displays.
Waiting for
NC power
8. Adjustment Procedure
LED display
NC power ON
NC power ON
NC power OFF
8 − 2
Spindle amplifier initialization complete
Waiting for NC power start
Executing initial communication with the NC
In emergency stop status:
F# → E7 → OFF are alternately displayed.
(# is the set axis No.)
Ready ON/servo ON status (1st axis)