# Reversal of rotation direction by gear (P-TOOL-00018)

P-TOOL-00018 | Reversal of rotation direction by gear
Description | If the direction of rotation is reversed by the tool gear, a change in the rotation direction can be defined in the position controller by setting this parameter to the value TRUE. This is executed as soon as a tool change is carried out.
Parameter | wz[i].gear_inv_direction
Data type | BOOLEAN
Data range | 0/1
Dimension | ----
Default value | 0
Remarks |