# Gearbox ratio numerator/denominator

The gearbox ratio is defined as the ratio of input revolutions (n1) to output revolutions (n2).

The resulting resolution is given by:

## Attention

If the gearbox ratio is used, the speed scaling must also be set related to the motor side (for example, for open-loop speed-controlled spindles). The resulting speed scaling is:

## Notice

The gear ratio cannot be changed by list download. However, if an attempt is made, error message P-ERR-110581 is output.

## Additional information

- Gearbox ratio numerator (P-AXIS-00511)
- Gearbox ratio denominator (P-AXIS-00512)