Delta Tau GEO MACRO DRIVE User Manual download pdf (Page 165)

Geo MACRO Drive User and Reference Manual

Geo Macro Drive MI-Variable Reference 153

MS{anynode}, MI932 Resolver Excitation Frequency Divider

Range: 0 – 3

Units: none

Default: 0

MI932 specifies the frequency of the AC excitation output created by the Geo MACRO for resolvers as a

function of the phase clock frequency set by I7m00 and I7m01. The following table lists the possible

values of MI932 and the excitation frequencies they produce:

MI932 Excitation Freq.

0 PhaseFreq

1 PhaseFreq/2

2 PhaseFreq/4

3 PhaseFreq/6

MS{anynode}, MI933 SSI Clock Frequency Divider

Range: 0 – 3

Units: none

Default: 0

MI933 specifies the frequency of the digital clock output for the SSI-encoder interface. The following

table lists the possible values of MI933 and the clock frequencies they produce:

MI933 SSI Clock Freq.

0 153.6 kHz

1 307.2 kHz

2 614.4 kHz

3 1.2288 MHz

MS{anynode},MI934-MI939 (Reserved for future use)

Range: 0

Units: none

Default: 0

MS{anynode}, MI940 Resolver Excitation Gain

Range: 0 – 3

Units: Gain-1

Default: 0

MI940 specifies the gain of the AC excitation output created by the Geo MACRO for resolvers, with the

gain equal to (MI940 - 1). With a gain of 1, the nominal AC output has peak voltages of +/-2.5V. The

following table lists the possible values of MI940 and the nominal output magnitudes they produce:

MI940 Excitation Gain

0 +/-2.5V

1 +/-5.0V

2 +/-7.5V

3 +/-10.0V

1 2 ... 160 161 162 163 164 165 166 167 168 169 170 ... 204 205

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Delta Tau GEO MACRO DRIVE User Manual Page 165