Geo MACRO Drive User Manual
126
Turbo PMAC2 Related I-Variable Reference
Ixx83: Commutation Feedback Address
If the Turbo PMAC2 is performing commutation for Motor xx (Ixx01 bit 0 = 1), providing either 2-phase
current commands (sine-wave output) or 3-PWM phase voltage commands (direct PWM), Ixx83 must
specify the address of the ongoing commutation position feedback.
When commutating over MACRO (Ixx01=3), the position feedback comes from Register 0 of the
MACRO node. In this case, Ixx83 must contain the address of this MACRO node register. The
following table contains the default Ixx83 values for Turbo PMAC2 Ultralite boards, listing the addresses
of the position feedback registers for each MACRO servo node.
Turbo PMAC2 Ultralite Ixx83 Defaults
Ixx83 Value
Register
Ixx83 Value
Register
I183
$078420 MACRO IC 0 Node 0 Reg. 0
I1783
$07A420 MACRO IC 2 Node 0 Reg. 0
I283
$078424 MACRO IC 0 Node 1 Reg. 0
I1883
$07A424 MACRO IC 2 Node 1 Reg. 0
I383
$078428 MACRO IC 0 Node 4 Reg. 0
I1983
$07A428 MACRO IC 2 Node 4 Reg. 0
I483
$07842C MACRO IC 0 Node 5 Reg. 0
I2083
$07A42C MACRO IC 2 Node 5 Reg. 0
I583
$078430 MACRO IC 0 Node 8 Reg. 0
I2183
$07A430 MACRO IC 2 Node 8 Reg. 0
I683
$078434 MACRO IC 0 Node 9 Reg. 0
I2283
$07A434 MACRO IC 2 Node 9 Reg. 0
I783
$078438 MACRO IC 0 Node 12 Reg. 0
I2383
$07A438 MACRO IC 2 Node 12 Reg. 0
I883
$07843C MACRO IC 0 Node 13 Reg. 0
I2483
$07A43C MACRO IC 2 Node 13 Reg. 0
I983
$079420 MACRO IC 1 Node 0 Reg. 0
I2583
$07B420 MACRO IC 3 Node 0 Reg. 0
I1083
$079424 MACRO IC 1 Node 1 Reg. 0
I2683
$07B424 MACRO IC 3 Node 1 Reg. 0
I1183
$079428 MACRO IC 1 Node 4 Reg. 0
I2783
$07B428 MACRO IC 3 Node 4 Reg. 0
I1283
$07942C MACRO IC 1 Node 5 Reg. 0
I2883
$07B42C MACRO IC 3 Node 5 Reg. 0
I1383
$079430 MACRO IC 1 Node 8 Reg. 0
I2983
$07B430 MACRO IC 3 Node 8 Reg. 0
I1483
$079434 MACRO IC 1 Node 9 Reg. 0
I3083
$07B434 MACRO IC 3 Node 9 Reg. 0
I1583
$079438 MACRO IC 1 Node 12 Reg. 0
I3183
$07B438 MACRO IC 3 Node 12 Reg. 0
I1683
$07943C MACRO IC 1 Node 13 Reg. 0
I3283
$07B43C MACRO IC 3 Node 13 Reg. 0
Because these are all Y addresses, bit 1 of Ixx01 must be set to 1. With bit 0 of Ixx01 set to 1 to enable
commutation, the net value of Ixx01 is 3.
Ixx91: Motor xx Power-On Phase Position Format
Range:
$000000 - $FFFFFF
Units:
None
Default:
0
Ixx91 specifies how the power-on phase-position data, if any, for Motor xx is interpreted. Ixx81 specifies
the address of the register containing this position data; Ixx91 controls how that data is read. This permits
the use of a wide variety of absolute position sensors with the Turbo PMAC.
Ixx91 is used only on power-on/reset or on the
$*
or
$$*
on-line reset commands. To get a new value of
Ixx91 to take effect, the
$*
or
$$*
command must be issued, or the value of Ixx91 must be stored to non-
volatile flash memory with the
SAVE
command, and the board must be reset.
Ixx91 is a 24-bit value; currently only bits 16-23, which comprise the first two of six hex digits, are used.
Ixx91 is only used if Ixx81 is set to a non-zero value.
The possible values of Ixx91 and the position sources they specify are summarized in the following table:
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Страница 130: ...Geo MACRO Drive User Manual 118 Troubleshooting...
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