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Appendix 7. Explanation of Alarms
Appendix 7.4 MCP Alarms (Y)
Y09 Too many axisno connected Exceeded number of axes
Details
The No. of the axis (drive unit's rotary switch No.) connected to CNC is bigger than the
maximum number of connectable axes.
Remedy
Be sure to turn down the rightmost DIP switch on each drive unit.
(Note 1) This alarm occurs when the number of the connected axes exceeded the maximum
number of the connectable axes assumed in the system.
(Note 2) If this alarm occurs, drive unit indicates a communication timeout (with "AA" in the
LED display) as the initial communication is not executed.
(Note 3) If this alarm occurs, the alarm "Y03 Message: Drive unit unequipped" will not occur.
(Note 4) This alarm is displayed taking precedence over the alarm "Y02 System alarm".
Y11 Node Detect Err 8002-8300 0x00
Details
Drive unit does not respond to the request from CNC when the CNC is turned ON.
Error No. shows the No. of communication phase at which the response stopped.
x: Station No. with the error (0 or later)
Remedy
The communication error may be caused by the drive unit software version that does not
correspond to the CNC software version. Check the drive unit software version.
This alarm is canceled after the CNC restarts.
When the alarm is not canceled, write down the alarm No. and the software version of each
drive unit, then contact service center.
Y12 No commu. with axis drv unit
Details
Although the high-speed synchronous tapping option is valid, the connected drive unit
doesn't support the option.
Remedy
Replace the drive unit with that supports the option.
Y13 No commu. with sp drv unit
Details
Although the high-speed synchronous tapping option is valid, the connected drive unit
doesn't support the option.
Remedy
Replace the drive unit with that supports the option.
Y14 VIR.AX AMP EQU. (Axis name)
Details
A drive unit is connected to a hypothetical axis (with "1" in "#2116 v_axis (Hypothetical
axis)").
Remedy
- Disconnect the drive unit from the hypothetical axis.
- Correct the "#1021 mcp_no (Drive unit I/F channel No. (servo))" and servo drive unit rotary
switch settings.