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126
Manual – IPOSplus®
12
P90x IPOS reference travel
P9xx IPOS Parameters
12.1.5 P904 Reference travel to zero pulse
Setting range: YES/NO
• YES: Reference travel takes place to the zero pulse of the selected IPOS
plus®
encoder.
• NO: Reference travel takes place to the falling edge of the reference cam.
12.1.6 P905 Hiperface offset X15
Setting range: –(2
31
– 1) – 0 – 2
31
– 1
This parameter is used to specify the zero point of the motor encoder display.
Use this parameter to define the machine zero without reference travel. It adds or sub-
tracts the offset from the encoder value.
• P905 Hiperface offset X15 (page 126) has an effect on the actual position of the
motor encoder H511.
H511 = Encoder value – P905
• P947 Hiperface offset X14 (page 136) affects the actual position of the external
encoder H510.
H510 = Encoder value – P947
The actual position is determined directly after the values have been entered. A
Hiperface
®
multi-turn encoder must be referenced once, a Hiperface
®
single-turn en-
coder must always be referenced.
Note:
When reference travel of a drive system takes place with a Hiperface
®
encoder, the Hip-
erface offsets (P905 or P947) are recalculated and overwritten due to the reference
travel depending on the set actual position source.
The following applies:
• P905 = Encoder value – P900
• P947 = Encoder value – P900
12.1.7 P906 Cam distance
Parameter
P906
is a display parameter.
It shows the number of increments between leaving the reference cam and reaching the
zero pulse of the encoder set in
P941
. Ideally, the value should be half the encoder res-
olution (after quadruple evaluation). Relocate cam if necessary.
The value is displayed after the reference travel.
P
i
f
kVA
Hz
n