Tool-changer positions 1 through 6 on a Mikron UM 600 remain unavailable after removing a high-speed spindle arrangement and restoring SK40 holders. The available evidence points to the pocket table—not the tool table—as the first place to inspect. The reported controller is a TNC 403, but that designation is disputed in the evidence, so confirm the controller model before editing configuration data.
Separate tool data from pocket status
The tool table describes tools, while the pocket table describes magazine positions. A tool table with no visible lock therefore does not prove that positions 1 through 6 are enabled. Open the pocket table and inspect the records for those six positions.
| Area | What to inspect | Decision |
|---|---|---|
| Tool table | Tool records | No visible lock was reported; continue to the pocket table. |
| Pocket table | Magazine positions 1 through 6 | Determine whether the positions remain blocked or reserved. |
Check the controller identification
The machine was reported as using a TNC 403, while another contributor recognized a TNC 430 but not a TNC 403. Treat the controller designation as unverified. Read the exact model from the control before choosing menus or applying any controller-specific procedure.
Reactivate the magazine positions
- Open the pocket table rather than relying on the tool table.
- Inspect positions 1 through 6 for a blocked or reserved state left from the high-speed spindle configuration.
- If such a state is present, remove it using the editing method documented for the verified controller and machine configuration.
- Command each restored position individually and confirm that the changer can address it without disturbing the remaining magazine assignments.
If positions 1 through 6 show no restriction in the pocket table, the supplied evidence does not identify another cause. At that point, preserve the current data and escalate the machine-specific configuration review through the manufacturer or an authorized service channel.
Verify the result
Successful reactivation requires more than an editable table entry. Confirm that all six positions are callable, that their pocket assignments match the installed SK40 holders, and that the magazine completes each commanded selection correctly. Stop if the displayed assignments disagree with the physical magazine arrangement.
FAQ
Why are Mikron UM 600 tool-changer positions 1 through 6 unavailable?
They were previously reserved for a high-speed spindle arrangement. The pocket table may still mark those magazine positions as blocked or reserved after the SK40 holders were restored.
Should I check the tool table or pocket table for locked positions?
Check the pocket table. The reported tool table contained no visible restriction, and magazine-position availability is associated with the pocket records.
Is the controller a TNC 403 or TNC 430?
The machine was reported as having a TNC 403, but the evidence questions that designation. Confirm the exact controller model at the machine before following controller-specific editing steps.
