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Rev. 1.0
0006302011
SSM23C User Manual
+86-400-820-9661
With a large inertial load, the gain parameters, especially the VP and VI terms, may need to be set
high to get a good response. The filter may then need to be decreased in value (lower frequency)
to prevent ringing or oscillation. The default of 15000 works well in many cases but can be
increased or decreased with little risk.
5.5.6 Verify the Drive Current
The amount of drive current can be verified at any time during the tuning process to make sure the
current supplied to the motor is not being limited by the drive. If too much current is being required
changes may be made to the move profile. Select
Current
in one of the
Plot
selection lists and
repeat the move, from this the current can be evaluated.
5.5.7 Finishing up
If the SSM will only be operated in a
Velocity Control Mode
with a
Speed only
Control Type, the
tuning is complete. The Position Loop
(P Loop)
does not need to be tuned as it is not used. After
verifying the drive current, the
Notch Filter
may be the only setting still needing adjusting. See
section 5.8 on “Setting the Notch Filter”.
If the SSM will be operated in a
Position Control Mode,
proceed to section 5.6 ”Tuning the
Position Loop” below.
See Section 5.7 below on “Using Auto Trigger Sampling” for tuning the SSM while using an
external Pulse & Direction controller.
5.6 Tuning the Position loop
5.6.1 Entering a Sample Move
Select the
P Loop
tab in the
Control Loop
dialog section. This will cause the
Sampling
to do
moves that are based on distance and operates the drive in the
Point to Point
Positioning mode.
Now the parameters for a
Position
based move can
be entered. There is one consideration that must be
addressed here. If the SSM is being operated in the
Position Control Mode
with a
Pulse & Direction
Digital Signal Type
setting and being commanded
by, for example, an external Pulse and Direction
controller, the
Auto Trigger
option may be used
to capture and plot the move. See Section 5.6 on
“Using the Auto Trigger Sampling” for more details on
this feature.
