Siemens alarm 61000: No tool offset active

What it means

A machining cycle was called although no tool length offset (D number) is active, so the cycle cannot relate its calculated positions to a real tool point. Siemens requires the D correction to be programmed before the cycle call. The cycle aborts until a valid tool offset is selected.

Likely causes

• T word programmed without a D number before the cycle call
• Tool change logic suppressed the offset activation
• Program edited so the cycle call moved ahead of the tool selection block