Rockwell-automation 20D PowerFlex 700S with Phase I Control Reference Manual de usuario Pagina 145

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Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013 145
Detail Drive Configuration and Operation Chapter 1
Resolver Feedback Option
Parameter 266 [Reslvr0 Config] is used to configure the resolver feedback
option.
Setting bit 0 “Cable Tune” enables the cable tuning test, resetting the bit to zero
disables the test. This test automatically runs on power up to measure the IR drop
in the resolver cable.
Bit 1 “Reserved” (not used)
Bits 2 “Resolution 0" and bit 3 “Resolution 1" select the resolver resolution
(see Ta b l e 1 1
).
Setting bit 4 “Energize” energizes the resolver, resetting the bit to zero de-
energizes it.
Bit 5 “Resolver Dir” determines counting direction. If clear, direction is
forward or up. If set, the direction is reverse or down.
Bit 9 “Reserved” (not used)
Bits 10 “Reserved” (not used)
Bits 12…15 “SmplRate bt 0” - “SmplRate bt3” configure the sample
interval for measuring speed (refer to Ta b l e 1 2
). Increasing the resolver
sample interval improves speed measurement near zero speed. Decreasing
the resolver sample interval allows the speed control regulator to perform
with high gains at high speeds.
Table 11 - Resolution Settings
Bit 3 2 Resolution Setting
0010 bit
0112 bit (default setting)
1014 bit
1116 bit
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