Siemens SINUMERIK 840D sl Function Manual page 174

H1: Manual and handwheel travel
4.6 Handwheel travel
Distance evaluation of one increment
The distance evaluation of one increment for fixed and variable increment sizes is performed
via the axis-specific machine data:
MD31090 $MA_JOG_INCR_WEIGHT = <distance>
Note
Input of a negative value results in a reversal of the handwheel direction of rotation.
Limitation of the increment size
The machine operator can limit the size of the selected increment:
● For machine axes, using the axis-specific machine data:
MD32080 $MA_HANDWH_MAX_INCR_SIZE (limiting the selected increment)
● For geometry axes, using the channel-specific machine data:
MD20620 $MC_HANDWH_GEOAX_MAX_INCR_SIZE (limitation of handwheel increment
for geometry axes)
● For orientation axes, using the channel-specific machine data:
MD20621 $MC_HANDWH_ORIAX_MAX_INCR_SIZE (limitation of handwheel increment
for orientation axes)
Representation of the handwheel number in the NC/PLC interface signals
The representation of the handwheel number in the NC/PLC interface signals is defined using
machine data:
MD11324 $MN_HANDWH_VDI_REPRESENTATION
Value
0
1
Output of the NC/PLC interface signals "Plus travel command" / "Minus travel command"
The output behavior of the NC/PLC interface signals "Plus travel command" / "Minus travel
command" is specified with the machine data:
MD17900 $MN_VDI_FUNCTION_MASK
Value
0
1
174
Meaning
Bit-coded representation (basic setting)
→ Three handwheels can be represented.
Binary-coded representation
→ Six handwheels can be represented.
Meaning
The NC/PLC interface signals "Plus travel command" / "Minus travel command" are already
output when a travel request is active (default setting).
The NC/PLC interface signals "Plus travel command" / "Minus travel command" are only output
when the axis actually moves (i.e. if setpoints are output at the servo).
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions