![Aerotech Ndrive HP 10 Скачать руководство пользователя страница 101](http://html1.mh-extra.com/html/aerotech/ndrive-hp-10/ndrive-hp-10_user-manual_2863043101.webp)
Ndrive HP Options
Ndrive HP 10/20/30 User’s Manual
4-26 www.aerotech.com
When to use the CfgFbkRDCosPhase axis Parameter:
The Cosine reference signal can be adjusted from approximately 0 degrees (i.e. in phase
with the SINE reference signal) to 180 degrees, with a nominal value of 90 degrees. This
axis parameter is primarily for use with inductosyns, which have a nominal phase shift
from the reference signal of 90 degrees. This value may vary from system to system, and
therefore can be adjusted to ensure that the alignment of the feedback signals to the
reference signal is at its optimum, for better performance.
This signal can also be used to adjust for resolvers that have a large amount of phase lag.
Typically, less than 5 degrees of phase lag is acceptable and does not require use of the
COS reference.
Use of this axis parameter requires that the jumper on the
RDP board for this channel (JP1 for channel 1 or JP2 for
channel 2) be set from 2-3 instead of from 1-2. Also, in
order for the A/D’s to sample properly, the appropriate bit
in the CfgFbkRDConfig axis parameter should be set to 1
(bit 0 for channel 1 or bit 1 for channel 2).
For most resolvers, use of the CfgFbkRDCosPhase axis parameter is not required. If this
axis parameter is not being used, the jumpers should be set to 1-2 and the bits in the
CfgFbkRDConfig axis parameter should be set to 0. Skip to the section on adjusting the
R/D Gain.
Adjusting the CfgFbkRDCosPhase axis Parameter:
After starting the Encoder Feedback Configuration utility, make sure the proper axis is
selected and then start collecting data continuously. Set the CfgFbkRDGain axis
parameter to 0 to minimize the gain. This can be done through the Ndebug.exe utility.
Rotate the resolver or inductosyn until the analog signals are at one of the vertical or
horizontal lines; this will ease location of a maximum. See Figure 4-22 below for an
example. Adjust the CfgFbkRDCosPhase axis parameter until you locate a local
maximum. This can be done through the Ndebug.exe utility. When the maximum has
been found, rotate the motor in a complete circle to ensure you see a circle. If not, the P1
amplitude potentiometer on the pre-amplifier board (if present) may need adjusted.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com