Delta Tau Acc-51E, Руководство пользователя

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Accessory 51E
UMAC MACRO Station Processor and the UMAC Interpolator 25
Ix25 Notes
Ix25 is set to the address of the flag inputs. This does not need to be the same address as Ix03. However,
if the value of Ix25 is different from Ix03, the Index input on the Acc-5E must be wired to the channel
that is pointed to by Ix25.
Usually, Ix25 is set to the same address as Ix03 except when limit switches are used (such as PLIM,
MLIM, HOMEFLG, USER).
I9n2 Notes
I9n2 is set to determine the kind of position triggering that will occur in the homing move. Set this value
to 1 or 5 if only the index (channel C) of the encoder is used. The software reference manual provides the
details for setting this variable.
I9n3 Notes
I9n3 is set only if I9n2 has a setting that involves flags (such as PLIM, MLIM, HOMEFLG, USER).
Turbo PMAC2 UltraLite Software Homing
Ixx03, Ixx24, Ixx25, Ixx97, I68n2, I7mn2, I68n3 and I7mn3 are set in the Turbo PMAC2 Ultralite to
configure for software homing capture. Refer to the Turbo PMAC2 Software Reference manual for the
details of setting these I-variables.
Ixx03 Notes
This register contains the address of the position feedback register. For single encoder feedback
applications, Ix04 is set to the same value as Ixx03.
Ixx24 Notes
This register is default set by the Turbo Ultralite to $840001.
Ixx25 Notes
Ixx25 is set to the location of the flag inputs. This does not need to be the same location as Ixx03.
However, if the value of Ixx25 is different from Ixx03, the Index input (encoder channel C) on the Acc-
5E must be physically wired to the channel that is pointed to by Ixx25.
Usually, Ixx25 is set to the same address as Ixx03 except when limit switches are used (such as PLIM,
MLIM, HOMEFLG, USER).
Ixx97 Notes
Ixx97 is used to establish position capture (i.e. Index Position Input). This variable must be set to 1 to
function as software index capture. Note that there is a background cycle delay (typically 2-3 mSec),
which limits the accuracy of the capture.
Encoder Conversion Table (in UMAC MACRO CPU)
The encoder conversion table is a user-configurable list of entries that may be assigned to different
specific data processing inputs. The interpolator is assigned into the encoder conversion table inside the
UMAC MACRO CPU. This entry uses an encoder method digit value (bit 16-19) of $Fxxxx. Refer to
the description of I-Variables MI120-MI151in the UMAC MACRO Station Software Reference for
Encoder Conversion Table, Entries (I-variables I8000-I8191) for details.