Bosch Rexroth IndraDrive MPB-02, Функциональное описание

Страница: 193 / 728

MPH-02, MPB-02, MPD-02 Motor, Mechanical Axis System, Measuring Systems
5-69
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
0117 0 S
Xref
0165 0 S : encoder ext.
0116 0 S
Xref
0165 0 S : encoder motor
DP
Xref
0165 0 S : general
− −
= − −
− −
= − −
= − −
S-0-0165: distance-coded reference offset A in number of DP
Xref: travel distance for establishing the absolute reference point in mm
DP, S-0-0116, S-0-0117: division period of the relative linear encoder in mm
Fig. 5-81: Determining the value for the "shorter distance" of the distance-
coded reference marks with a relative linear encoder
o
o
o
360
PHIref 0117 0 S
0165 0 S : encoder ext.
360
PHIref 0116 0 S
0165 0 S : encoder motor
360
PHIref Nzyk
0165 0 S : general
∗ − −
= − −
∗ − −
= − −
∗
= − −
S-0-0165: distance-coded reference offset A in number of cycles
PHIref: travel angle for establishing the absolute reference point in degrees
Nzyk, S-0-0116, S-0-0117: number of cycles of the rotary encoder per 360°
Fig. 5-82: Determining the value for the "shorter distance" of the distance-
coded reference marks with a rotary encoder
If the value of "distance-coded reference offset B" is not directly indicated
in the data sheet of the distance-coded encoder, the value can only be
determined by means of calculation if the distance difference (longer
distance – shorter distance) is indicated in the data sheet of the encoder:
0117 0 S
0117 0 S n Xref
0166 0 S : encoder ext.
0116 0 S
0116 0 S n Xref
0166 0 S : encoder motor
DP
DP n Xref
0166 0 S : general
− −
− − ∗ +
= − −
− −
− − ∗ +
= − −
∗ +
= − −
S-0-0166: distance-coded reference offset B in number of DP
Xref: travel distance for establishing the absolute reference point in mm
n: number of DP of the distance difference (big-small distance)
DP, S-0-0116, S-0-0117: division period of the relative linear encoder in mm
Fig. 5-83: Determining the value for the "longer distance" of the distance-coded
reference marks with a relative linear encoder
z
360
PHIref 0117 0 S
0166 0 S : encoder ext.
z
360
PHIref 0116 0 S
0166 0 S : encoder motor
z
360
PHIref Nzyk
0166 0 S : general
o
o
o
+
∗ − −
= − −
+
∗ − −
= − −
+
∗
= − −
S-0-0166: distance-coded reference offset B in number of cycles
PHIref: travel angle for establishing the absolute reference point in degrees
z: number of cycles of the distance difference (big-small distance)
Nzyk, S-0-0116, S-0-0117: number of cycles of the rotary encoder per 360°
Fig. 5-84: Determining the value for the "longer distance" of the distance-coded
reference marks with a relative rotary encoder
Linear Encoders
Rotary Encoders
Determining the "Distance-
Coded Reference Offset B"
Linear Encoders
Rotary Encoders
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