Siemens Simovert Masterdrives Compendium page 1192

Parameter Description
P180* The parameter defines the actual value weighting factor of
AVWF.Num/Denom the motor encoder as a fraction with numerator and
denominator. This makes sense with rotational axes
180 whenever the actual value weighting factor, consisting of
digits before and after the decimal point cannot be
displayed with 8 decimal places.
Parameter P183 is used for selecting between input of the
actual value weighting factor in decimal form with digits
before and after the decimal point and input of a fraction
with numerator and denominator.
Numerator and denominator must satisfy the following
condition:
(((2^P171 * P180.1) mod P180.2) + P180.2) < (2^31 - 1)
One denominator P180.2 <= 2^30 satisfies this.
Index 1: Numerator
Index 2: Denominator
In function diagram 330.3
P181* The parameter defines the actual value weighting factor
extEnAVWF.NumDe (AVWF) of the external encoder as fraction with
numerator and denominator. This makes sense with
181 rotational axes whenever the actual value weighting
factor, consisting of digits before and after the decimal
point cannot be displayed with 8 decimal places.
Parameter P166 is used for selecting between input of the
actual value weighting factor for the external encoder in
decimal form with digits before and after the decimal point
and input of a fraction with numerator and denominator.
Index 1: Numerator
Index 2: Denominator
In function diagram 335.3
P182* This parameter defines the source connector for the
S.Angle Pos position actual value sensing for the motor encoder in slot
C. The connector can be connected both to the rotor
182 position (KK0090) and to the angle of the machine
encoder (KK0104).
If the motor encoder is a multi-pole resolver and it is also
to be used for referencing with a proximity switch and zero
pulse, KK0096 has to be connected up to position sensing
(P182) instead of KK0090. The multi-pole resolver
supplies quasi Zp zero pulses per mechanical revolution.
The number of pole pairs also has to be taken into
account in the denominator of the IBF factor (P180.2) -
see P109 or the Compendium - in order to compensate
for the higher resolution of KK0096.
Siemens AG 6SE7087-6QX70 (Edition AL )
SIMOVERT MASTERDRIVES Compendium Motion Control
Data Read/write
index1: 1 Menus:
Min: 0 - Parameter menu
Max: + Control/gating unit
2147483647 + Position control
Unit: - - Drive setting
Indices: 2 - Upread/free access
Type: I4 Changeable in:
- Drive setting
- Ready to switch on
index1: 1 Menus:
Min: 0 - Parameter menu
Max: + Motor/encoder
2147483647 + Encoder data
Unit: - + Control/gating unit
Indices: 2 + Position control
Type: I4 - Drive setting
- Upread/free access
Changeable in:
- Drive setting
- Ready to switch on
Init: 90 Menus:
Unit: - - Parameter menu
Indices: - + Control/gating unit
Type: L2 ,K + Position control
,K - Drive setting
- Upread/free access
Changeable in:
- Drive setting
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