Rockwell Automation SD3000 Drive Configuration, Programming - Manual (Page 40)

104/1 104 Field Test Angie Register
Hex Value: N/A
Sug. Var. Name: FML_ALPHA%
Range: 5 to 180
Access: Read/Write
UDC Error Code: N/A
LED: N/A
Description: The value in the Field Test Angle register is the firing angle for the field alpha test. Firing
angles can range from
(full off) to (full on). Any value outside of this range is internally clamped
to be within the limits. Note that the default value is 0 and the motor’s field must be disconnected for the
test to execute. This register is only to be used with a single phase field. The forward or reverse bridge is
selected through bits 6 and 7 of the Drive Control register 100/1 100.
W A R N I N G
THE PROGRAMMER MUST WRITE THE FIRING ANGLE VALUE INTO THE FIELD TEST ANGLE
REGISTER (104/1 104) BEFORE ENABLING THE FIELD ALPHA TEST. THE ACTUAL MOTOR
FIELD MUST NOT BE IN THE CIRCUIT. UNCONTROLLED MACHINE OPERATION MAY RESULT
IF THIS PROCEDURE IS NOT FOLLOWED. FAILURETO OBSERVETHIS PRECAUTION COULD
RESULT IN BODILY INJURY.
105/1 105 Field Current Reference Register
Hex Value: N/A
Sug. Var. Name: FML_REF%
Range: -4095 to +4095
Access: Read/Write
UDC Error Code: N/A
LED: N/A
Description: The value in the Field Current Reference register contains the reference current for the
field current loop. It is scaled so that 100% of the hot amps value has a value of 4095. Any value writ-
ten here will be internally limited so as not to exceed +/- 4095. A positive value in this register will
turn on the forward bridge. If a regenerative Field Power Module is being used, a negative value in
this register will turn on the reverse bridge. The actual reference value will be clamped at the Maxi-
mum Amps parameter value entered during configuration. Refer to registers 21 l/l 211 (current feed-
back in counts), registers 212/1 212 (current feedback in amperes), and registers 100/1 100 (bit 11,
disable field weakening) for more information.
106/1 106 PMI D/A Output Register
Hex Value: N/A
Sug. Var. Name: UDC_PMI_DA%
Range: N/A
Access: Read/Write
UDC Error Code: N/A
LED: N/A
Description: The value in the PMI D/A Output register is transmitted to the PMI Processor at the end
of every UDC task scan. Note that a task must copy the desired value into this register. The value can
then be displayed on one of the four PMI Processor meter ports. This register can contain any vari-
able in the AutoMax system as long as it is a 16-bit integer. Floating point or double-integer values
cannot be displayed on the PMI Processor’s D/A meter ports.
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