5. Parameter
5−77
Festo P.BE−CPX−CMAX−CONTROL−EN en 0908NH
5.4.12 Application settings
Offset axis zero point
PNU PNU: 1130 Index: 1 Max index: 1 Class: Var Data type: int32
Values Unit: Position (index = 1)
Linear drive Semi−rotary drive
Dimension Default Minimum Maximum Dimension Default Minimum Maximum
SI 0.01 mm 0 −1.000.000 1.000.000 0,1 ° 0 −100.000 100.000
Imperial 0.001 in 0 −393.700 393.700 0,1 ° 0 −100.000 100.000
Difference between the axis zero point (AZ) and the reference position (REF) or difference between
the axis zero point (AZ) and the sensor zero point (SZ).
The axis zero point (AZ) is calculated as:
AZ = REF + offset axis zero point (DNCI)
or AZ = SZ + offset axis zero point (external measuring system: potentiometer)
The axis zero point must be placed on the cylinder zero point for servo−pneumatic drives. With the
DGCI the measuring system is calibrated, specification of an offset is not permitted.
o The parameter value cannot be changed.
ý Writing permissible only in commissioning/parametrising mode with disabled controller.
o This parameter can be written by FCT without higher−order controller.
ý After writing, controller recalculation is carried out.
Homing method
PNU PNU: 1131 Index: 1 Max index: 1 Class: Var Data type: int32
Values Without unit
Default: −17 Minimum: −128 Maximum: 127
Defines the method by which the drive performs homing, see section 3.2.2.
hex dec Description
23h 35 Adopt current actual position as reference position
EFh −17 Searching for negative stop
EEh −18 Searching for positive stop
o The parameter value cannot be changed.
ý Writing permissible only in commissioning/parametrising mode with disabled controller.
o This parameter can be written by FCT without higher−order controller.
o After writing, controller recalculation is carried out.
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