HEIDENHAIN MANUALPLUS 620 - 6.15.5 Traverse Reference Points operating mode

804 HEIDENHAIN Technical Manual MANUALplus 620
6.15.5 "Traverse Reference Points" operating mode
The parameter object CfgReferencing is not required for:
 Virtual axes (MP_axisMode=Virtual)
In NN_OmgReference, the NC informs the PLC of the Pass Over Reference
Point operating mode. In NN_AxReferenceAvailable, the NC reports
whether the reference marks of this axis were traversed.
If you switch the operating mode before all reference marks are traversed, the
MANUALplus 620 identifies this state and prompts you to traverse the
remaining reference marks.
Reference end
position
To prevent the axes from violating their traverse limits when traversing the
reference marks, each axis requires a trip dog (at the reference end position).
The trip dogs must be installed by the machine tool builder at the ends of the
traverse range. The switch signals from the trip dogs are sent to free PLC
inputs. The PLC program must gate these PLC inputs with
PP_AxReferenceEndPosition for "reference end position." Setting the
reference end position causes a reversal of the traverse direction from
MP_refDirection.
Settings in the configuration editor MP number
Axes
ParameterSets
[Key name of the parameter set]
CfgReferencing
refPosition
moveAfterRef
moveAfterRefType
moveAfterRefPos
moveAfterRefFeed
400403
400409
400410
400411
400412
PLC operand / Description Ty p e
NN_AxReferenceAvailable
0: Reference mark not traversed
1: Reference mark traversed
M
PP_AxReferenceEndPosition
0: Trip dog not triggered
1: Trip dog triggered
M