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Soloist Hardware Manual
3.3.1. MXU Option
The MXU encoder input option, is designed for a differential analog encoder in the range
of 0.6 to 2 volts (Peak to Peak). The maximum input frequency is limited to 200 kHz. The
– MXU option multiplies the resolution programmatically up to 512 times (total). The
multiplication factor is defined by the CfgFbkEncMultFactorMXU axis parameter.
The encoder
input should be adjusted for optimum performance by the
CfgFbkEncCosGain,
CfgFbkEncCosOffset,
CfgFbkEncSineOffset, CfgFbkEncMultFactorMXU axis parameters. This can be done
automatically using the " Encoder Feedback Configuration" utility. See the Soloist HMI
help for more information.
The – MXU option is not compatible with PSO firing capabilities because it does not
generate a serial pulse stream as required by the PSO (Position Synchronized Output)
option.
A standard differential line driver encoder must be used if this option is not present, see
Section 3.3. for more information. See the figure below for MXU typical input circuitry.
The pin out is indicated in Table 3-11.
J103
SIN+, COS+, MKR+
(Typical)
SIN-, COS-, MKR-
J103
(Typical)
Figure 3-14.
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CfgFbkEncPhase,
R319
R294
10K
1K
C31
330PF
R317
1K
R316
R295
10K
1K
C407
330PF
C30
C28
.47
.1
A
Optional -MXU Analog Encoder Interface (J103)
CfgFbkEncSineGain,
C405
33PF
C406
R293
33PF
C408
A
33PF
6
-
M18-B
5
+
AD822
C409
R285
10K
33PF
+
C29
Technical Details
10K
7
13
25
14
1
3-17
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