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Chapter 9 Setup
9–2
9-1 Initial setup of servo drive unit
9-1-1 Setting the rotary switches
Before turning ON the power, the axis No. must be set with the rotary switches. The rotary switch
settings will be validated when the servo driver (servo drive unit) power is turned ON.
MDS-B-V14L
POINT
When an axis that is not used is selected, that axis will not be controlled when
the power is turned ON, and "Ab" will remain displayed on the LED.
If the power of the axis not in use is disconnected, the system's emergency
stop cannot be released.
9-1-2 Transition of LED display after power is turned ON
When the axis No. has been set and the servo driver power and CNC power have been turned ON,
the servo driver will automatically execute self-diagnosis and initial settings for operation, etc. The
LEDs on the front of the servo driver 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 "Chapter 11 Troubleshooting" for
details on the alarm displays.
Rotary switch setting Set axis No.
0 1st axis
1 2nd axis
2 3rd axis
3 4th axis
4 5th axis
5 6th axis
6 7th axis
7
8
9
A
B
Not usable
C
D
E
F Axis not used
Waiting for CNC
power start up
CNC power ON
LED display
Servo driver initialization complete
Waiting for CNC power start up
Executing initial communication with CNC
Emergency stop state
The LED will alternate between
F#
→
E7
→
not lit. (# is the set axis No.)
Servo ON state
CNC power OFF
Servo OFF state
Repeats lighting and going out.
(1st axis in the display example)
CNC power ON