Gear Stage Change - Siemens SINUMERIK 802D sl Function Manual

20.4

Gear stage change

Number of gear stages
Five gear stages can be configured for the spindle. If the spindle motor is mounted on the
spindle directly (1:1) or with a non-adjustable gear ratio, MD35010
GEAR_STEP_CHANGE_ENABLE (gear stage change is possible) must be set to zero.
Figure 20-6
Defining a gear stage
A gear stage can be defined as follows:
● Permanent definition in the part program (M41 to M45)
● Automatic definition by the programmed spindle speed (M40)
In the case of M40, the spindle must be in control mode for automatic gear stage selection
with an S value. The gear stage change is otherwise rejected and alarm 22000 "Gear
change not possible" is output.
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
Gear stage change with gear stage selection
Spindle (S1)
20.4 Gear stage change
353