Intermediate Gear - Siemens SINUMERIK 840D sl Function Manual

16.4.5

Intermediate gear

Application and functions
A configured intermediate gear can be used to adapt a variety of rotating tools. The
intermediate gear on the tool side has a multiplicative effect on the motor/load gearbox.
It is set via machine data:
MD31066 $MA_DRIVE_AX_RATIO2_NUMERA (intermediate gear numerator)
MD31064 $MA_DRIVE_AX_RATIO2_DENOM (intermediate gear denominator)
An encoder on the tool for the intermediate gear
is configured with machine data:
MD31044 $MA_ENC_IS_DIRECT2 (encoder on intermediate gear)
.
Change parameters for this machine data can be activated with "NewConfig" either using the
SinuCOM-NC commissioning software or via a softkey on the operator panel (HMI). The
existing motor/load gearboxes, on the other hand, are active after POWER ON.
Tool change
If the intermediate gear is changed at the same time as the tool, the user must also reconfigure
the transmission ratio of the numerator and denominator via the machine data of the
intermediate gear.
Example:
Engineering error
It remains the task of the user to stop within the appropriate period in order to make changes
to the machine data when required and then activate a "NewConfig".
In the case of an installed tool with a transmission ratio of 2:1, a suitable intermediate gear is
configured and is activated immediately in the part program with the command NEWCONF.
Program code
N05 $MA_DRIVE_AX_RATIO2-NUMERA[AX5] = 2
M10 $MA_DRIVE_AX_RATIO2-DENOM[AX5] = 1
N15 NEWCONF
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
CAUTION
S1: Spindles
16.4 Configurable gear adaptation
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