8. Troubleshooting
3.
Other troubles
8-6
TNU
3-2
The driver controller does not operate even with the lower-level
communication authorization switch ON
(1) The driver controller and TNU are not connected. Or the power is not on.
-> Connect correctly.
(2) TJU's termination resistance setting is wrong.
-> Set correctly.
(-> P.2-8)
(3) The driver controller settings are incorrect.
-> Check the ID and communication speed settings.
(4) The TNU mode change switch is set to PC/TDO mode.
-> Set the mode change switch to I/O mode.
(5) The net device list setting is different from the actual connection.
-> Check that the driver controller model and input mode are consistent with the net device list.
(6) The driver controller switch is set to MANU.
-> Switch it to AUTO.
(7) The TNU power was turned ON again in remote MANUAL status.
-> Turn remote MANUAL from ON to OFF. Or move the driver controller toggle switch from AUTO
to MANU to AUTO.
(8) Inconsistency between upper-level master and data area and TNU data area settings.
-> Check the upper-level master and TNU settings.
3-3
During DVC pressing operation, position data abnormality occurs
When the DVC switch is left ON during pressing operation, because the driver controller receives
a command that reverses the motor operating direction immediately after pressing completion, the
position data error alarm activates. During pressing operation, use with the DVC switch OFF.
3-4
Driver controller input signal is slow
On the net device list, unconnected IDs are set to Any.
3-5
Even with driver controller input signal MANU set to ON, operation from D-STEP, TDO is not possible
TNU mode is IO mode.
Set the mode switch to the CN2 side for PC/TDO mode, or use the remote manual function.
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