Siemens SINUMERIK 802D sl - Gear Stage Change

Spindle (S1)
20.4 Gear stage change
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
353
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.
*HDU
VWDJH
*HDU
VWDJH

'HILQDEOHE\0'QPD[PD[VSLQGOHVSHHGRIWKHVWJHDUVWDJH
JPLQPLQVSLQGOHVSHHGRIWKHVWJHDUVWDJH
IRUDXWRPJHDUVWDJHVHOHFWLRQ
JPD[PD[VSLQGOHVSHHGRIWKHVWJHDUVWDJH
IRUDXWRPJHDUVWDJHVHOHFWLRQ
QPD[PD[VSLQGOHVSHHGRIWKHQGJHDUVWDJH
JPLQPLQVSLQGOHVSHHGRIWKHQGJHDUVWDJH
IRUDXWRPJHDUVWDJHVHOHFWLRQ
JPD[PD[VSLQGOHVSHHGRIWKHQGJHDUVWDJH
IRUDXWRPJHDUVWDJHVHOHFWLRQ
:LWKDXWRPDWLFJHDUVWDJHVHOHFWLRQWKLVVSHHG
UDQJHLVQRWXWLOL]HGLQJHDUVWDJH
PD[
Q
PD[
J
PD[
Q
PLQ
J
PD[
J
PLQ
J
VSHHG
0D[PRWRU
6SLQGOHVSHHGUHYPLQ
0RWRU
VSHHG
UHYPLQ
Figure 20-6 Gear stage change with gear stage selection
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.